forgot to add it

todo-list/Taskfile.yml

@@ -0,0 +1,16 @@
+version: '3'
+
+tasks:
+  run:
+    cmds:
+      - go run github.com/maddalax/htmgo/cli@latest run
+    silent: true
+
+  build:
+    cmds:
+      - go run github.com/maddalax/htmgo/cli@latest build
+
+  watch:
+    cmds:
+      - go run github.com/maddalax/htmgo/cli@latest watch
+    silent: true

todo-list/assets/css/input.css

@@ -0,0 +1,3 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;

todo-list/assets/css/tailwind.config.js

@@ -0,0 +1,36 @@
+const {join} = require("node:path");
+/** @type {import('tailwindcss').Config} */
+const root = join(__dirname, "../../");
+const contentGo = join(root, "**/*.go");
+const contentJs = join(root, "**/pages/**/*.js");
+
+
+module.exports = {
+  content: [contentGo, contentJs],
+  theme: {
+    extend: {
+      colors: {
+        background: 'hsl(224, 71.4%, 4.1%)',
+        foreground: 'hsl(0, 0%, 89%)',
+        card: 'hsl(224, 71.4%, 4.1%)',
+        cardForeground: 'hsl(0, 0%, 89%)',
+        popover: 'hsl(224, 71.4%, 4.1%)',
+        popoverForeground: 'hsl(0, 0%, 89%)',
+        primary: 'hsl(0, 0%, 89%)',
+        primaryForeground: 'hsl(220.9, 39.3%, 11%)',
+        secondary: 'hsl(215, 27.9%, 16.9%)',
+        secondaryForeground: 'hsl(0, 0%, 89%)',
+        muted: 'hsl(215, 27.9%, 16.9%)',
+        mutedForeground: 'hsl(217.9, 10.6%, 64.9%)',
+        accent: 'hsl(215, 27.9%, 16.9%)',
+        accentForeground: 'hsl(0, 0%, 89%)',
+        destructive: 'hsl(0, 62.8%, 30.6%)',
+        destructiveForeground: 'hsl(0, 0%, 89%)',
+        border: 'hsl(215, 27.9%, 16.9%)',
+        input: 'hsl(215, 27.9%, 16.9%)',
+        ring: 'hsl(216, 12.2%, 83.9%)',
+      },
+    },
+  },
+  plugins: [],
+};

todo-list/ent/client.go

@@ -0,0 +1,342 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"reflect"
+
+	"todolist/ent/migrate"
+
+	"todolist/ent/task"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+// Client is the client that holds all ent builders.
+type Client struct {
+	config
+	// Schema is the client for creating, migrating and dropping schema.
+	Schema *migrate.Schema
+	// Task is the client for interacting with the Task builders.
+	Task *TaskClient
+}
+
+// NewClient creates a new client configured with the given options.
+func NewClient(opts ...Option) *Client {
+	client := &Client{config: newConfig(opts...)}
+	client.init()
+	return client
+}
+
+func (c *Client) init() {
+	c.Schema = migrate.NewSchema(c.driver)
+	c.Task = NewTaskClient(c.config)
+}
+
+type (
+	// config is the configuration for the client and its builder.
+	config struct {
+		// driver used for executing database requests.
+		driver dialect.Driver
+		// debug enable a debug logging.
+		debug bool
+		// log used for logging on debug mode.
+		log func(...any)
+		// hooks to execute on mutations.
+		hooks *hooks
+		// interceptors to execute on queries.
+		inters *inters
+	}
+	// Option function to configure the client.
+	Option func(*config)
+)
+
+// newConfig creates a new config for the client.
+func newConfig(opts ...Option) config {
+	cfg := config{log: log.Println, hooks: &hooks{}, inters: &inters{}}
+	cfg.options(opts...)
+	return cfg
+}
+
+// options applies the options on the config object.
+func (c *config) options(opts ...Option) {
+	for _, opt := range opts {
+		opt(c)
+	}
+	if c.debug {
+		c.driver = dialect.Debug(c.driver, c.log)
+	}
+}
+
+// Debug enables debug logging on the ent.Driver.
+func Debug() Option {
+	return func(c *config) {
+		c.debug = true
+	}
+}
+
+// Log sets the logging function for debug mode.
+func Log(fn func(...any)) Option {
+	return func(c *config) {
+		c.log = fn
+	}
+}
+
+// Driver configures the client driver.
+func Driver(driver dialect.Driver) Option {
+	return func(c *config) {
+		c.driver = driver
+	}
+}
+
+// Open opens a database/sql.DB specified by the driver name and
+// the data source name, and returns a new client attached to it.
+// Optional parameters can be added for configuring the client.
+func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
+	switch driverName {
+	case dialect.MySQL, dialect.Postgres, dialect.SQLite:
+		drv, err := sql.Open(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		return NewClient(append(options, Driver(drv))...), nil
+	default:
+		return nil, fmt.Errorf("unsupported driver: %q", driverName)
+	}
+}
+
+// ErrTxStarted is returned when trying to start a new transaction from a transactional client.
+var ErrTxStarted = errors.New("ent: cannot start a transaction within a transaction")
+
+// Tx returns a new transactional client. The provided context
+// is used until the transaction is committed or rolled back.
+func (c *Client) Tx(ctx context.Context) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, ErrTxStarted
+	}
+	tx, err := newTx(ctx, c.driver)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = tx
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Task:   NewTaskClient(cfg),
+	}, nil
+}
+
+// BeginTx returns a transactional client with specified options.
+func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, errors.New("ent: cannot start a transaction within a transaction")
+	}
+	tx, err := c.driver.(interface {
+		BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
+	}).BeginTx(ctx, opts)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = &txDriver{tx: tx, drv: c.driver}
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Task:   NewTaskClient(cfg),
+	}, nil
+}
+
+// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
+//
+//	client.Debug().
+//		Task.
+//		Query().
+//		Count(ctx)
+func (c *Client) Debug() *Client {
+	if c.debug {
+		return c
+	}
+	cfg := c.config
+	cfg.driver = dialect.Debug(c.driver, c.log)
+	client := &Client{config: cfg}
+	client.init()
+	return client
+}
+
+// Close closes the database connection and prevents new queries from starting.
+func (c *Client) Close() error {
+	return c.driver.Close()
+}
+
+// Use adds the mutation hooks to all the entity clients.
+// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
+func (c *Client) Use(hooks ...Hook) {
+	c.Task.Use(hooks...)
+}
+
+// Intercept adds the query interceptors to all the entity clients.
+// In order to add interceptors to a specific client, call: `client.Node.Intercept(...)`.
+func (c *Client) Intercept(interceptors ...Interceptor) {
+	c.Task.Intercept(interceptors...)
+}
+
+// Mutate implements the ent.Mutator interface.
+func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error) {
+	switch m := m.(type) {
+	case *TaskMutation:
+		return c.Task.mutate(ctx, m)
+	default:
+		return nil, fmt.Errorf("ent: unknown mutation type %T", m)
+	}
+}
+
+// TaskClient is a client for the Task schema.
+type TaskClient struct {
+	config
+}
+
+// NewTaskClient returns a client for the Task from the given config.
+func NewTaskClient(c config) *TaskClient {
+	return &TaskClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `task.Hooks(f(g(h())))`.
+func (c *TaskClient) Use(hooks ...Hook) {
+	c.hooks.Task = append(c.hooks.Task, hooks...)
+}
+
+// Intercept adds a list of query interceptors to the interceptors stack.
+// A call to `Intercept(f, g, h)` equals to `task.Intercept(f(g(h())))`.
+func (c *TaskClient) Intercept(interceptors ...Interceptor) {
+	c.inters.Task = append(c.inters.Task, interceptors...)
+}
+
+// Create returns a builder for creating a Task entity.
+func (c *TaskClient) Create() *TaskCreate {
+	mutation := newTaskMutation(c.config, OpCreate)
+	return &TaskCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of Task entities.
+func (c *TaskClient) CreateBulk(builders ...*TaskCreate) *TaskCreateBulk {
+	return &TaskCreateBulk{config: c.config, builders: builders}
+}
+
+// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
+// a builder and applies setFunc on it.
+func (c *TaskClient) MapCreateBulk(slice any, setFunc func(*TaskCreate, int)) *TaskCreateBulk {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return &TaskCreateBulk{err: fmt.Errorf("calling to TaskClient.MapCreateBulk with wrong type %T, need slice", slice)}
+	}
+	builders := make([]*TaskCreate, rv.Len())
+	for i := 0; i < rv.Len(); i++ {
+		builders[i] = c.Create()
+		setFunc(builders[i], i)
+	}
+	return &TaskCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for Task.
+func (c *TaskClient) Update() *TaskUpdate {
+	mutation := newTaskMutation(c.config, OpUpdate)
+	return &TaskUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *TaskClient) UpdateOne(t *Task) *TaskUpdateOne {
+	mutation := newTaskMutation(c.config, OpUpdateOne, withTask(t))
+	return &TaskUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *TaskClient) UpdateOneID(id uuid.UUID) *TaskUpdateOne {
+	mutation := newTaskMutation(c.config, OpUpdateOne, withTaskID(id))
+	return &TaskUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for Task.
+func (c *TaskClient) Delete() *TaskDelete {
+	mutation := newTaskMutation(c.config, OpDelete)
+	return &TaskDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a builder for deleting the given entity.
+func (c *TaskClient) DeleteOne(t *Task) *TaskDeleteOne {
+	return c.DeleteOneID(t.ID)
+}
+
+// DeleteOneID returns a builder for deleting the given entity by its id.
+func (c *TaskClient) DeleteOneID(id uuid.UUID) *TaskDeleteOne {
+	builder := c.Delete().Where(task.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &TaskDeleteOne{builder}
+}
+
+// Query returns a query builder for Task.
+func (c *TaskClient) Query() *TaskQuery {
+	return &TaskQuery{
+		config: c.config,
+		ctx:    &QueryContext{Type: TypeTask},
+		inters: c.Interceptors(),
+	}
+}
+
+// Get returns a Task entity by its id.
+func (c *TaskClient) Get(ctx context.Context, id uuid.UUID) (*Task, error) {
+	return c.Query().Where(task.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *TaskClient) GetX(ctx context.Context, id uuid.UUID) *Task {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// Hooks returns the client hooks.
+func (c *TaskClient) Hooks() []Hook {
+	return c.hooks.Task
+}
+
+// Interceptors returns the client interceptors.
+func (c *TaskClient) Interceptors() []Interceptor {
+	return c.inters.Task
+}
+
+func (c *TaskClient) mutate(ctx context.Context, m *TaskMutation) (Value, error) {
+	switch m.Op() {
+	case OpCreate:
+		return (&TaskCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdate:
+		return (&TaskUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdateOne:
+		return (&TaskUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpDelete, OpDeleteOne:
+		return (&TaskDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
+	default:
+		return nil, fmt.Errorf("ent: unknown Task mutation op: %q", m.Op())
+	}
+}
+
+// hooks and interceptors per client, for fast access.
+type (
+	hooks struct {
+		Task []ent.Hook
+	}
+	inters struct {
+		Task []ent.Interceptor
+	}
+)

todo-list/ent/ent.go

@@ -0,0 +1,608 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"reflect"
+	"sync"
+	"todolist/ent/task"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+// ent aliases to avoid import conflicts in user's code.
+type (
+	Op            = ent.Op
+	Hook          = ent.Hook
+	Value         = ent.Value
+	Query         = ent.Query
+	QueryContext  = ent.QueryContext
+	Querier       = ent.Querier
+	QuerierFunc   = ent.QuerierFunc
+	Interceptor   = ent.Interceptor
+	InterceptFunc = ent.InterceptFunc
+	Traverser     = ent.Traverser
+	TraverseFunc  = ent.TraverseFunc
+	Policy        = ent.Policy
+	Mutator       = ent.Mutator
+	Mutation      = ent.Mutation
+	MutateFunc    = ent.MutateFunc
+)
+
+type clientCtxKey struct{}
+
+// FromContext returns a Client stored inside a context, or nil if there isn't one.
+func FromContext(ctx context.Context) *Client {
+	c, _ := ctx.Value(clientCtxKey{}).(*Client)
+	return c
+}
+
+// NewContext returns a new context with the given Client attached.
+func NewContext(parent context.Context, c *Client) context.Context {
+	return context.WithValue(parent, clientCtxKey{}, c)
+}
+
+type txCtxKey struct{}
+
+// TxFromContext returns a Tx stored inside a context, or nil if there isn't one.
+func TxFromContext(ctx context.Context) *Tx {
+	tx, _ := ctx.Value(txCtxKey{}).(*Tx)
+	return tx
+}
+
+// NewTxContext returns a new context with the given Tx attached.
+func NewTxContext(parent context.Context, tx *Tx) context.Context {
+	return context.WithValue(parent, txCtxKey{}, tx)
+}
+
+// OrderFunc applies an ordering on the sql selector.
+// Deprecated: Use Asc/Desc functions or the package builders instead.
+type OrderFunc func(*sql.Selector)
+
+var (
+	initCheck   sync.Once
+	columnCheck sql.ColumnCheck
+)
+
+// checkColumn checks if the column exists in the given table.
+func checkColumn(table, column string) error {
+	initCheck.Do(func() {
+		columnCheck = sql.NewColumnCheck(map[string]func(string) bool{
+			task.Table: task.ValidColumn,
+		})
+	})
+	return columnCheck(table, column)
+}
+
+// Asc applies the given fields in ASC order.
+func Asc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Asc(s.C(f)))
+		}
+	}
+}
+
+// Desc applies the given fields in DESC order.
+func Desc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Desc(s.C(f)))
+		}
+	}
+}
+
+// AggregateFunc applies an aggregation step on the group-by traversal/selector.
+type AggregateFunc func(*sql.Selector) string
+
+// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
+//
+//	GroupBy(field1, field2).
+//	Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
+//	Scan(ctx, &v)
+func As(fn AggregateFunc, end string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.As(fn(s), end)
+	}
+}
+
+// Count applies the "count" aggregation function on each group.
+func Count() AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.Count("*")
+	}
+}
+
+// Max applies the "max" aggregation function on the given field of each group.
+func Max(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Max(s.C(field))
+	}
+}
+
+// Mean applies the "mean" aggregation function on the given field of each group.
+func Mean(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Avg(s.C(field))
+	}
+}
+
+// Min applies the "min" aggregation function on the given field of each group.
+func Min(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Min(s.C(field))
+	}
+}
+
+// Sum applies the "sum" aggregation function on the given field of each group.
+func Sum(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Sum(s.C(field))
+	}
+}
+
+// ValidationError returns when validating a field or edge fails.
+type ValidationError struct {
+	Name string // Field or edge name.
+	err  error
+}
+
+// Error implements the error interface.
+func (e *ValidationError) Error() string {
+	return e.err.Error()
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ValidationError) Unwrap() error {
+	return e.err
+}
+
+// IsValidationError returns a boolean indicating whether the error is a validation error.
+func IsValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ValidationError
+	return errors.As(err, &e)
+}
+
+// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
+type NotFoundError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotFoundError) Error() string {
+	return "ent: " + e.label + " not found"
+}
+
+// IsNotFound returns a boolean indicating whether the error is a not found error.
+func IsNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotFoundError
+	return errors.As(err, &e)
+}
+
+// MaskNotFound masks not found error.
+func MaskNotFound(err error) error {
+	if IsNotFound(err) {
+		return nil
+	}
+	return err
+}
+
+// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
+type NotSingularError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotSingularError) Error() string {
+	return "ent: " + e.label + " not singular"
+}
+
+// IsNotSingular returns a boolean indicating whether the error is a not singular error.
+func IsNotSingular(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotSingularError
+	return errors.As(err, &e)
+}
+
+// NotLoadedError returns when trying to get a node that was not loaded by the query.
+type NotLoadedError struct {
+	edge string
+}
+
+// Error implements the error interface.
+func (e *NotLoadedError) Error() string {
+	return "ent: " + e.edge + " edge was not loaded"
+}
+
+// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
+func IsNotLoaded(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotLoadedError
+	return errors.As(err, &e)
+}
+
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
+	msg  string
+	wrap error
+}
+
+// Error implements the error interface.
+func (e ConstraintError) Error() string {
+	return "ent: constraint failed: " + e.msg
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ConstraintError) Unwrap() error {
+	return e.wrap
+}
+
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ConstraintError
+	return errors.As(err, &e)
+}
+
+// selector embedded by the different Select/GroupBy builders.
+type selector struct {
+	label string
+	flds  *[]string
+	fns   []AggregateFunc
+	scan  func(context.Context, any) error
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (s *selector) ScanX(ctx context.Context, v any) {
+	if err := s.scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from a selector. It is only allowed when selecting one field.
+func (s *selector) Strings(ctx context.Context) ([]string, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Strings is not achievable when selecting more than 1 field")
+	}
+	var v []string
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (s *selector) StringsX(ctx context.Context) []string {
+	v, err := s.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a selector. It is only allowed when selecting one field.
+func (s *selector) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = s.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (s *selector) StringX(ctx context.Context) string {
+	v, err := s.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from a selector. It is only allowed when selecting one field.
+func (s *selector) Ints(ctx context.Context) ([]int, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Ints is not achievable when selecting more than 1 field")
+	}
+	var v []int
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (s *selector) IntsX(ctx context.Context) []int {
+	v, err := s.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a selector. It is only allowed when selecting one field.
+func (s *selector) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = s.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (s *selector) IntX(ctx context.Context) int {
+	v, err := s.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64s(ctx context.Context) ([]float64, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Float64s is not achievable when selecting more than 1 field")
+	}
+	var v []float64
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (s *selector) Float64sX(ctx context.Context) []float64 {
+	v, err := s.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = s.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (s *selector) Float64X(ctx context.Context) float64 {
+	v, err := s.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from a selector. It is only allowed when selecting one field.
+func (s *selector) Bools(ctx context.Context) ([]bool, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Bools is not achievable when selecting more than 1 field")
+	}
+	var v []bool
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (s *selector) BoolsX(ctx context.Context) []bool {
+	v, err := s.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a selector. It is only allowed when selecting one field.
+func (s *selector) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = s.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (s *selector) BoolX(ctx context.Context) bool {
+	v, err := s.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// withHooks invokes the builder operation with the given hooks, if any.
+func withHooks[V Value, M any, PM interface {
+	*M
+	Mutation
+}](ctx context.Context, exec func(context.Context) (V, error), mutation PM, hooks []Hook) (value V, err error) {
+	if len(hooks) == 0 {
+		return exec(ctx)
+	}
+	var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+		mutationT, ok := any(m).(PM)
+		if !ok {
+			return nil, fmt.Errorf("unexpected mutation type %T", m)
+		}
+		// Set the mutation to the builder.
+		*mutation = *mutationT
+		return exec(ctx)
+	})
+	for i := len(hooks) - 1; i >= 0; i-- {
+		if hooks[i] == nil {
+			return value, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+		}
+		mut = hooks[i](mut)
+	}
+	v, err := mut.Mutate(ctx, mutation)
+	if err != nil {
+		return value, err
+	}
+	nv, ok := v.(V)
+	if !ok {
+		return value, fmt.Errorf("unexpected node type %T returned from %T", v, mutation)
+	}
+	return nv, nil
+}
+
+// setContextOp returns a new context with the given QueryContext attached (including its op) in case it does not exist.
+func setContextOp(ctx context.Context, qc *QueryContext, op string) context.Context {
+	if ent.QueryFromContext(ctx) == nil {
+		qc.Op = op
+		ctx = ent.NewQueryContext(ctx, qc)
+	}
+	return ctx
+}
+
+func querierAll[V Value, Q interface {
+	sqlAll(context.Context, ...queryHook) (V, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlAll(ctx)
+	})
+}
+
+func querierCount[Q interface {
+	sqlCount(context.Context) (int, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlCount(ctx)
+	})
+}
+
+func withInterceptors[V Value](ctx context.Context, q Query, qr Querier, inters []Interceptor) (v V, err error) {
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	rv, err := qr.Query(ctx, q)
+	if err != nil {
+		return v, err
+	}
+	vt, ok := rv.(V)
+	if !ok {
+		return v, fmt.Errorf("unexpected type %T returned from %T. expected type: %T", vt, q, v)
+	}
+	return vt, nil
+}
+
+func scanWithInterceptors[Q1 ent.Query, Q2 interface {
+	sqlScan(context.Context, Q1, any) error
+}](ctx context.Context, rootQuery Q1, selectOrGroup Q2, inters []Interceptor, v any) error {
+	rv := reflect.ValueOf(v)
+	var qr Querier = QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q1)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		if err := selectOrGroup.sqlScan(ctx, query, v); err != nil {
+			return nil, err
+		}
+		if k := rv.Kind(); k == reflect.Pointer && rv.Elem().CanInterface() {
+			return rv.Elem().Interface(), nil
+		}
+		return v, nil
+	})
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	vv, err := qr.Query(ctx, rootQuery)
+	if err != nil {
+		return err
+	}
+	switch rv2 := reflect.ValueOf(vv); {
+	case rv.IsNil(), rv2.IsNil(), rv.Kind() != reflect.Pointer:
+	case rv.Type() == rv2.Type():
+		rv.Elem().Set(rv2.Elem())
+	case rv.Elem().Type() == rv2.Type():
+		rv.Elem().Set(rv2)
+	}
+	return nil
+}
+
+// queryHook describes an internal hook for the different sqlAll methods.
+type queryHook func(context.Context, *sqlgraph.QuerySpec)

todo-list/ent/enttest/enttest.go

@@ -0,0 +1,85 @@
+// Code generated by ent, DO NOT EDIT.
+
+package enttest
+
+import (
+	"context"
+
+	"todolist/ent"
+	// required by schema hooks.
+	_ "todolist/ent/runtime"
+
+	"todolist/ent/migrate"
+
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+type (
+	// TestingT is the interface that is shared between
+	// testing.T and testing.B and used by enttest.
+	TestingT interface {
+		FailNow()
+		Error(...any)
+	}
+
+	// Option configures client creation.
+	Option func(*options)
+
+	options struct {
+		opts        []ent.Option
+		migrateOpts []schema.MigrateOption
+	}
+)
+
+// WithOptions forwards options to client creation.
+func WithOptions(opts ...ent.Option) Option {
+	return func(o *options) {
+		o.opts = append(o.opts, opts...)
+	}
+}
+
+// WithMigrateOptions forwards options to auto migration.
+func WithMigrateOptions(opts ...schema.MigrateOption) Option {
+	return func(o *options) {
+		o.migrateOpts = append(o.migrateOpts, opts...)
+	}
+}
+
+func newOptions(opts []Option) *options {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+	return o
+}
+
+// Open calls ent.Open and auto-run migration.
+func Open(t TestingT, driverName, dataSourceName string, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c, err := ent.Open(driverName, dataSourceName, o.opts...)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	migrateSchema(t, c, o)
+	return c
+}
+
+// NewClient calls ent.NewClient and auto-run migration.
+func NewClient(t TestingT, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c := ent.NewClient(o.opts...)
+	migrateSchema(t, c, o)
+	return c
+}
+func migrateSchema(t TestingT, c *ent.Client, o *options) {
+	tables, err := schema.CopyTables(migrate.Tables)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	if err := migrate.Create(context.Background(), c.Schema, tables, o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+}

todo-list/ent/generate.go

@@ -0,0 +1,3 @@
+package ent
+
+//go:generate go run -mod=mod entgo.io/ent/cmd/ent generate ./schema

todo-list/ent/hook/hook.go

@@ -0,0 +1,198 @@
+// Code generated by ent, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+	"todolist/ent"
+)
+
+// The TaskFunc type is an adapter to allow the use of ordinary
+// function as Task mutator.
+type TaskFunc func(context.Context, *ent.TaskMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f TaskFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.TaskMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.TaskMutation", m)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

todo-list/ent/migrate/migrate.go

@@ -0,0 +1,64 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	return Create(ctx, s, Tables, opts...)
+}
+
+// Create creates all table resources using the given schema driver.
+func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+//	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+//	}
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
+}

todo-list/ent/migrate/schema.go

@@ -0,0 +1,33 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// TasksColumns holds the columns for the "tasks" table.
+	TasksColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeUUID},
+		{Name: "name", Type: field.TypeString, Default: "unknown"},
+		{Name: "created_at", Type: field.TypeTime, Default: "CURRENT_TIMESTAMP"},
+		{Name: "updated_at", Type: field.TypeTime, Default: "CURRENT_TIMESTAMP"},
+		{Name: "completed_at", Type: field.TypeTime, Nullable: true},
+		{Name: "tags", Type: field.TypeJSON, Nullable: true},
+	}
+	// TasksTable holds the schema information for the "tasks" table.
+	TasksTable = &schema.Table{
+		Name:       "tasks",
+		Columns:    TasksColumns,
+		PrimaryKey: []*schema.Column{TasksColumns[0]},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		TasksTable,
+	}
+)
+
+func init() {
+}

todo-list/ent/mutation.go

@@ -0,0 +1,635 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sync"
+	"time"
+	"todolist/ent/predicate"
+	"todolist/ent/task"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+const (
+	// Operation types.
+	OpCreate    = ent.OpCreate
+	OpDelete    = ent.OpDelete
+	OpDeleteOne = ent.OpDeleteOne
+	OpUpdate    = ent.OpUpdate
+	OpUpdateOne = ent.OpUpdateOne
+
+	// Node types.
+	TypeTask = "Task"
+)
+
+// TaskMutation represents an operation that mutates the Task nodes in the graph.
+type TaskMutation struct {
+	config
+	op            Op
+	typ           string
+	id            *uuid.UUID
+	name          *string
+	created_at    *time.Time
+	updated_at    *time.Time
+	completed_at  *time.Time
+	tags          *[]string
+	appendtags    []string
+	clearedFields map[string]struct{}
+	done          bool
+	oldValue      func(context.Context) (*Task, error)
+	predicates    []predicate.Task
+}
+
+var _ ent.Mutation = (*TaskMutation)(nil)
+
+// taskOption allows management of the mutation configuration using functional options.
+type taskOption func(*TaskMutation)
+
+// newTaskMutation creates new mutation for the Task entity.
+func newTaskMutation(c config, op Op, opts ...taskOption) *TaskMutation {
+	m := &TaskMutation{
+		config:        c,
+		op:            op,
+		typ:           TypeTask,
+		clearedFields: make(map[string]struct{}),
+	}
+	for _, opt := range opts {
+		opt(m)
+	}
+	return m
+}
+
+// withTaskID sets the ID field of the mutation.
+func withTaskID(id uuid.UUID) taskOption {
+	return func(m *TaskMutation) {
+		var (
+			err   error
+			once  sync.Once
+			value *Task
+		)
+		m.oldValue = func(ctx context.Context) (*Task, error) {
+			once.Do(func() {
+				if m.done {
+					err = errors.New("querying old values post mutation is not allowed")
+				} else {
+					value, err = m.Client().Task.Get(ctx, id)
+				}
+			})
+			return value, err
+		}
+		m.id = &id
+	}
+}
+
+// withTask sets the old Task of the mutation.
+func withTask(node *Task) taskOption {
+	return func(m *TaskMutation) {
+		m.oldValue = func(context.Context) (*Task, error) {
+			return node, nil
+		}
+		m.id = &node.ID
+	}
+}
+
+// Client returns a new `ent.Client` from the mutation. If the mutation was
+// executed in a transaction (ent.Tx), a transactional client is returned.
+func (m TaskMutation) Client() *Client {
+	client := &Client{config: m.config}
+	client.init()
+	return client
+}
+
+// Tx returns an `ent.Tx` for mutations that were executed in transactions;
+// it returns an error otherwise.
+func (m TaskMutation) Tx() (*Tx, error) {
+	if _, ok := m.driver.(*txDriver); !ok {
+		return nil, errors.New("ent: mutation is not running in a transaction")
+	}
+	tx := &Tx{config: m.config}
+	tx.init()
+	return tx, nil
+}
+
+// SetID sets the value of the id field. Note that this
+// operation is only accepted on creation of Task entities.
+func (m *TaskMutation) SetID(id uuid.UUID) {
+	m.id = &id
+}
+
+// ID returns the ID value in the mutation. Note that the ID is only available
+// if it was provided to the builder or after it was returned from the database.
+func (m *TaskMutation) ID() (id uuid.UUID, exists bool) {
+	if m.id == nil {
+		return
+	}
+	return *m.id, true
+}
+
+// IDs queries the database and returns the entity ids that match the mutation's predicate.
+// That means, if the mutation is applied within a transaction with an isolation level such
+// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
+// or updated by the mutation.
+func (m *TaskMutation) IDs(ctx context.Context) ([]uuid.UUID, error) {
+	switch {
+	case m.op.Is(OpUpdateOne | OpDeleteOne):
+		id, exists := m.ID()
+		if exists {
+			return []uuid.UUID{id}, nil
+		}
+		fallthrough
+	case m.op.Is(OpUpdate | OpDelete):
+		return m.Client().Task.Query().Where(m.predicates...).IDs(ctx)
+	default:
+		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
+	}
+}
+
+// SetName sets the "name" field.
+func (m *TaskMutation) SetName(s string) {
+	m.name = &s
+}
+
+// Name returns the value of the "name" field in the mutation.
+func (m *TaskMutation) Name() (r string, exists bool) {
+	v := m.name
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldName returns the old "name" field's value of the Task entity.
+// If the Task object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *TaskMutation) OldName(ctx context.Context) (v string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldName is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldName requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldName: %w", err)
+	}
+	return oldValue.Name, nil
+}
+
+// ResetName resets all changes to the "name" field.
+func (m *TaskMutation) ResetName() {
+	m.name = nil
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (m *TaskMutation) SetCreatedAt(t time.Time) {
+	m.created_at = &t
+}
+
+// CreatedAt returns the value of the "created_at" field in the mutation.
+func (m *TaskMutation) CreatedAt() (r time.Time, exists bool) {
+	v := m.created_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldCreatedAt returns the old "created_at" field's value of the Task entity.
+// If the Task object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *TaskMutation) OldCreatedAt(ctx context.Context) (v time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldCreatedAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldCreatedAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldCreatedAt: %w", err)
+	}
+	return oldValue.CreatedAt, nil
+}
+
+// ResetCreatedAt resets all changes to the "created_at" field.
+func (m *TaskMutation) ResetCreatedAt() {
+	m.created_at = nil
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (m *TaskMutation) SetUpdatedAt(t time.Time) {
+	m.updated_at = &t
+}
+
+// UpdatedAt returns the value of the "updated_at" field in the mutation.
+func (m *TaskMutation) UpdatedAt() (r time.Time, exists bool) {
+	v := m.updated_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldUpdatedAt returns the old "updated_at" field's value of the Task entity.
+// If the Task object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *TaskMutation) OldUpdatedAt(ctx context.Context) (v time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldUpdatedAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldUpdatedAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldUpdatedAt: %w", err)
+	}
+	return oldValue.UpdatedAt, nil
+}
+
+// ResetUpdatedAt resets all changes to the "updated_at" field.
+func (m *TaskMutation) ResetUpdatedAt() {
+	m.updated_at = nil
+}
+
+// SetCompletedAt sets the "completed_at" field.
+func (m *TaskMutation) SetCompletedAt(t time.Time) {
+	m.completed_at = &t
+}
+
+// CompletedAt returns the value of the "completed_at" field in the mutation.
+func (m *TaskMutation) CompletedAt() (r time.Time, exists bool) {
+	v := m.completed_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldCompletedAt returns the old "completed_at" field's value of the Task entity.
+// If the Task object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *TaskMutation) OldCompletedAt(ctx context.Context) (v *time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldCompletedAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldCompletedAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldCompletedAt: %w", err)
+	}
+	return oldValue.CompletedAt, nil
+}
+
+// ClearCompletedAt clears the value of the "completed_at" field.
+func (m *TaskMutation) ClearCompletedAt() {
+	m.completed_at = nil
+	m.clearedFields[task.FieldCompletedAt] = struct{}{}
+}
+
+// CompletedAtCleared returns if the "completed_at" field was cleared in this mutation.
+func (m *TaskMutation) CompletedAtCleared() bool {
+	_, ok := m.clearedFields[task.FieldCompletedAt]
+	return ok
+}
+
+// ResetCompletedAt resets all changes to the "completed_at" field.
+func (m *TaskMutation) ResetCompletedAt() {
+	m.completed_at = nil
+	delete(m.clearedFields, task.FieldCompletedAt)
+}
+
+// SetTags sets the "tags" field.
+func (m *TaskMutation) SetTags(s []string) {
+	m.tags = &s
+	m.appendtags = nil
+}
+
+// Tags returns the value of the "tags" field in the mutation.
+func (m *TaskMutation) Tags() (r []string, exists bool) {
+	v := m.tags
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldTags returns the old "tags" field's value of the Task entity.
+// If the Task object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *TaskMutation) OldTags(ctx context.Context) (v []string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldTags is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldTags requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldTags: %w", err)
+	}
+	return oldValue.Tags, nil
+}
+
+// AppendTags adds s to the "tags" field.
+func (m *TaskMutation) AppendTags(s []string) {
+	m.appendtags = append(m.appendtags, s...)
+}
+
+// AppendedTags returns the list of values that were appended to the "tags" field in this mutation.
+func (m *TaskMutation) AppendedTags() ([]string, bool) {
+	if len(m.appendtags) == 0 {
+		return nil, false
+	}
+	return m.appendtags, true
+}
+
+// ClearTags clears the value of the "tags" field.
+func (m *TaskMutation) ClearTags() {
+	m.tags = nil
+	m.appendtags = nil
+	m.clearedFields[task.FieldTags] = struct{}{}
+}
+
+// TagsCleared returns if the "tags" field was cleared in this mutation.
+func (m *TaskMutation) TagsCleared() bool {
+	_, ok := m.clearedFields[task.FieldTags]
+	return ok
+}
+
+// ResetTags resets all changes to the "tags" field.
+func (m *TaskMutation) ResetTags() {
+	m.tags = nil
+	m.appendtags = nil
+	delete(m.clearedFields, task.FieldTags)
+}
+
+// Where appends a list predicates to the TaskMutation builder.
+func (m *TaskMutation) Where(ps ...predicate.Task) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the TaskMutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *TaskMutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Task, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *TaskMutation) Op() Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *TaskMutation) SetOp(op Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Task).
+func (m *TaskMutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *TaskMutation) Fields() []string {
+	fields := make([]string, 0, 5)
+	if m.name != nil {
+		fields = append(fields, task.FieldName)
+	}
+	if m.created_at != nil {
+		fields = append(fields, task.FieldCreatedAt)
+	}
+	if m.updated_at != nil {
+		fields = append(fields, task.FieldUpdatedAt)
+	}
+	if m.completed_at != nil {
+		fields = append(fields, task.FieldCompletedAt)
+	}
+	if m.tags != nil {
+		fields = append(fields, task.FieldTags)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *TaskMutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case task.FieldName:
+		return m.Name()
+	case task.FieldCreatedAt:
+		return m.CreatedAt()
+	case task.FieldUpdatedAt:
+		return m.UpdatedAt()
+	case task.FieldCompletedAt:
+		return m.CompletedAt()
+	case task.FieldTags:
+		return m.Tags()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *TaskMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	switch name {
+	case task.FieldName:
+		return m.OldName(ctx)
+	case task.FieldCreatedAt:
+		return m.OldCreatedAt(ctx)
+	case task.FieldUpdatedAt:
+		return m.OldUpdatedAt(ctx)
+	case task.FieldCompletedAt:
+		return m.OldCompletedAt(ctx)
+	case task.FieldTags:
+		return m.OldTags(ctx)
+	}
+	return nil, fmt.Errorf("unknown Task field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *TaskMutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case task.FieldName:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetName(v)
+		return nil
+	case task.FieldCreatedAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetCreatedAt(v)
+		return nil
+	case task.FieldUpdatedAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetUpdatedAt(v)
+		return nil
+	case task.FieldCompletedAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetCompletedAt(v)
+		return nil
+	case task.FieldTags:
+		v, ok := value.([]string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetTags(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Task field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *TaskMutation) AddedFields() []string {
+	return nil
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *TaskMutation) AddedField(name string) (ent.Value, bool) {
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *TaskMutation) AddField(name string, value ent.Value) error {
+	switch name {
+	}
+	return fmt.Errorf("unknown Task numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *TaskMutation) ClearedFields() []string {
+	var fields []string
+	if m.FieldCleared(task.FieldCompletedAt) {
+		fields = append(fields, task.FieldCompletedAt)
+	}
+	if m.FieldCleared(task.FieldTags) {
+		fields = append(fields, task.FieldTags)
+	}
+	return fields
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *TaskMutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *TaskMutation) ClearField(name string) error {
+	switch name {
+	case task.FieldCompletedAt:
+		m.ClearCompletedAt()
+		return nil
+	case task.FieldTags:
+		m.ClearTags()
+		return nil
+	}
+	return fmt.Errorf("unknown Task nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *TaskMutation) ResetField(name string) error {
+	switch name {
+	case task.FieldName:
+		m.ResetName()
+		return nil
+	case task.FieldCreatedAt:
+		m.ResetCreatedAt()
+		return nil
+	case task.FieldUpdatedAt:
+		m.ResetUpdatedAt()
+		return nil
+	case task.FieldCompletedAt:
+		m.ResetCompletedAt()
+		return nil
+	case task.FieldTags:
+		m.ResetTags()
+		return nil
+	}
+	return fmt.Errorf("unknown Task field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *TaskMutation) AddedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *TaskMutation) AddedIDs(name string) []ent.Value {
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *TaskMutation) RemovedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *TaskMutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *TaskMutation) ClearedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *TaskMutation) EdgeCleared(name string) bool {
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *TaskMutation) ClearEdge(name string) error {
+	return fmt.Errorf("unknown Task unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *TaskMutation) ResetEdge(name string) error {
+	return fmt.Errorf("unknown Task edge %s", name)
+}

todo-list/ent/predicate/predicate.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Task is the predicate function for task builders.
+type Task func(*sql.Selector)

todo-list/ent/runtime.go

@@ -0,0 +1,35 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"time"
+	"todolist/ent/schema"
+	"todolist/ent/task"
+
+	"github.com/google/uuid"
+)
+
+// The init function reads all schema descriptors with runtime code
+// (default values, validators, hooks and policies) and stitches it
+// to their package variables.
+func init() {
+	taskFields := schema.Task{}.Fields()
+	_ = taskFields
+	// taskDescName is the schema descriptor for name field.
+	taskDescName := taskFields[1].Descriptor()
+	// task.DefaultName holds the default value on creation for the name field.
+	task.DefaultName = taskDescName.Default.(string)
+	// taskDescCreatedAt is the schema descriptor for created_at field.
+	taskDescCreatedAt := taskFields[2].Descriptor()
+	// task.DefaultCreatedAt holds the default value on creation for the created_at field.
+	task.DefaultCreatedAt = taskDescCreatedAt.Default.(func() time.Time)
+	// taskDescUpdatedAt is the schema descriptor for updated_at field.
+	taskDescUpdatedAt := taskFields[3].Descriptor()
+	// task.DefaultUpdatedAt holds the default value on creation for the updated_at field.
+	task.DefaultUpdatedAt = taskDescUpdatedAt.Default.(func() time.Time)
+	// taskDescID is the schema descriptor for id field.
+	taskDescID := taskFields[0].Descriptor()
+	// task.DefaultID holds the default value on creation for the id field.
+	task.DefaultID = taskDescID.Default.(func() uuid.UUID)
+}

todo-list/ent/runtime/runtime.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in todolist/ent/runtime.go
+
+const (
+	Version = "v0.14.1"                                         // Version of ent codegen.
+	Sum     = "h1:fUERL506Pqr92EPHJqr8EYxbPioflJo6PudkrEA8a/s=" // Sum of ent codegen.
+)

todo-list/ent/schema/task.go

@@ -0,0 +1,36 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/entsql"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+	"time"
+)
+
+type Task struct {
+	ent.Schema
+}
+
+// Fields of the User.
+func (Task) Fields() []ent.Field {
+	return []ent.Field{
+		field.UUID("id", uuid.UUID{}).
+			Default(uuid.New),
+		field.String("name").
+			Default("unknown"),
+		field.Time("created_at").Default(time.Now).Annotations(
+			entsql.Default("CURRENT_TIMESTAMP"),
+		),
+		field.Time("updated_at").Default(time.Now).Annotations(
+			entsql.Default("CURRENT_TIMESTAMP"),
+		),
+		field.Time("completed_at").Optional().Nillable(),
+		field.Strings("tags").Optional(),
+	}
+}
+
+// Edges of the User.
+func (Task) Edges() []ent.Edge {
+	return nil
+}

todo-list/ent/task.go

@@ -0,0 +1,159 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+	"todolist/ent/task"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+// Task is the model entity for the Task schema.
+type Task struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID uuid.UUID `json:"id,omitempty"`
+	// Name holds the value of the "name" field.
+	Name string `json:"name,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// UpdatedAt holds the value of the "updated_at" field.
+	UpdatedAt time.Time `json:"updated_at,omitempty"`
+	// CompletedAt holds the value of the "completed_at" field.
+	CompletedAt *time.Time `json:"completed_at,omitempty"`
+	// Tags holds the value of the "tags" field.
+	Tags         []string `json:"tags,omitempty"`
+	selectValues sql.SelectValues
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Task) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case task.FieldTags:
+			values[i] = new([]byte)
+		case task.FieldName:
+			values[i] = new(sql.NullString)
+		case task.FieldCreatedAt, task.FieldUpdatedAt, task.FieldCompletedAt:
+			values[i] = new(sql.NullTime)
+		case task.FieldID:
+			values[i] = new(uuid.UUID)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Task fields.
+func (t *Task) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case task.FieldID:
+			if value, ok := values[i].(*uuid.UUID); !ok {
+				return fmt.Errorf("unexpected type %T for field id", values[i])
+			} else if value != nil {
+				t.ID = *value
+			}
+		case task.FieldName:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field name", values[i])
+			} else if value.Valid {
+				t.Name = value.String
+			}
+		case task.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				t.CreatedAt = value.Time
+			}
+		case task.FieldUpdatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field updated_at", values[i])
+			} else if value.Valid {
+				t.UpdatedAt = value.Time
+			}
+		case task.FieldCompletedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field completed_at", values[i])
+			} else if value.Valid {
+				t.CompletedAt = new(time.Time)
+				*t.CompletedAt = value.Time
+			}
+		case task.FieldTags:
+			if value, ok := values[i].(*[]byte); !ok {
+				return fmt.Errorf("unexpected type %T for field tags", values[i])
+			} else if value != nil && len(*value) > 0 {
+				if err := json.Unmarshal(*value, &t.Tags); err != nil {
+					return fmt.Errorf("unmarshal field tags: %w", err)
+				}
+			}
+		default:
+			t.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Task.
+// This includes values selected through modifiers, order, etc.
+func (t *Task) Value(name string) (ent.Value, error) {
+	return t.selectValues.Get(name)
+}
+
+// Update returns a builder for updating this Task.
+// Note that you need to call Task.Unwrap() before calling this method if this Task
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (t *Task) Update() *TaskUpdateOne {
+	return NewTaskClient(t.config).UpdateOne(t)
+}
+
+// Unwrap unwraps the Task entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (t *Task) Unwrap() *Task {
+	_tx, ok := t.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Task is not a transactional entity")
+	}
+	t.config.driver = _tx.drv
+	return t
+}
+
+// String implements the fmt.Stringer.
+func (t *Task) String() string {
+	var builder strings.Builder
+	builder.WriteString("Task(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", t.ID))
+	builder.WriteString("name=")
+	builder.WriteString(t.Name)
+	builder.WriteString(", ")
+	builder.WriteString("created_at=")
+	builder.WriteString(t.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("updated_at=")
+	builder.WriteString(t.UpdatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	if v := t.CompletedAt; v != nil {
+		builder.WriteString("completed_at=")
+		builder.WriteString(v.Format(time.ANSIC))
+	}
+	builder.WriteString(", ")
+	builder.WriteString("tags=")
+	builder.WriteString(fmt.Sprintf("%v", t.Tags))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Tasks is a parsable slice of Task.
+type Tasks []*Task

todo-list/ent/task/task.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package task
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+const (
+	// Label holds the string label denoting the task type in the database.
+	Label = "task"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldName holds the string denoting the name field in the database.
+	FieldName = "name"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
+	FieldUpdatedAt = "updated_at"
+	// FieldCompletedAt holds the string denoting the completed_at field in the database.
+	FieldCompletedAt = "completed_at"
+	// FieldTags holds the string denoting the tags field in the database.
+	FieldTags = "tags"
+	// Table holds the table name of the task in the database.
+	Table = "tasks"
+)
+
+// Columns holds all SQL columns for task fields.
+var Columns = []string{
+	FieldID,
+	FieldName,
+	FieldCreatedAt,
+	FieldUpdatedAt,
+	FieldCompletedAt,
+	FieldTags,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultName holds the default value on creation for the "name" field.
+	DefaultName string
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
+	DefaultUpdatedAt func() time.Time
+	// DefaultID holds the default value on creation for the "id" field.
+	DefaultID func() uuid.UUID
+)
+
+// OrderOption defines the ordering options for the Task queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByName orders the results by the name field.
+func ByName(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldName, opts...).ToFunc()
+}
+
+// ByCreatedAt orders the results by the created_at field.
+func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
+}
+
+// ByUpdatedAt orders the results by the updated_at field.
+func ByUpdatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUpdatedAt, opts...).ToFunc()
+}
+
+// ByCompletedAt orders the results by the completed_at field.
+func ByCompletedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCompletedAt, opts...).ToFunc()
+}

todo-list/ent/task/where.go

@@ -0,0 +1,296 @@
+// Code generated by ent, DO NOT EDIT.
+
+package task
+
+import (
+	"time"
+	"todolist/ent/predicate"
+
+	"entgo.io/ent/dialect/sql"
+	"github.com/google/uuid"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id uuid.UUID) predicate.Task {
+	return predicate.Task(sql.FieldLTE(FieldID, id))
+}
+
+// Name applies equality check predicate on the "name" field. It's identical to NameEQ.
+func Name(v string) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldName, v))
+}
+
+// CreatedAt applies equality check predicate on the "created_at" field. It's identical to CreatedAtEQ.
+func CreatedAt(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// UpdatedAt applies equality check predicate on the "updated_at" field. It's identical to UpdatedAtEQ.
+func UpdatedAt(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// CompletedAt applies equality check predicate on the "completed_at" field. It's identical to CompletedAtEQ.
+func CompletedAt(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldCompletedAt, v))
+}
+
+// NameEQ applies the EQ predicate on the "name" field.
+func NameEQ(v string) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldName, v))
+}
+
+// NameNEQ applies the NEQ predicate on the "name" field.
+func NameNEQ(v string) predicate.Task {
+	return predicate.Task(sql.FieldNEQ(FieldName, v))
+}
+
+// NameIn applies the In predicate on the "name" field.
+func NameIn(vs ...string) predicate.Task {
+	return predicate.Task(sql.FieldIn(FieldName, vs...))
+}
+
+// NameNotIn applies the NotIn predicate on the "name" field.
+func NameNotIn(vs ...string) predicate.Task {
+	return predicate.Task(sql.FieldNotIn(FieldName, vs...))
+}
+
+// NameGT applies the GT predicate on the "name" field.
+func NameGT(v string) predicate.Task {
+	return predicate.Task(sql.FieldGT(FieldName, v))
+}
+
+// NameGTE applies the GTE predicate on the "name" field.
+func NameGTE(v string) predicate.Task {
+	return predicate.Task(sql.FieldGTE(FieldName, v))
+}
+
+// NameLT applies the LT predicate on the "name" field.
+func NameLT(v string) predicate.Task {
+	return predicate.Task(sql.FieldLT(FieldName, v))
+}
+
+// NameLTE applies the LTE predicate on the "name" field.
+func NameLTE(v string) predicate.Task {
+	return predicate.Task(sql.FieldLTE(FieldName, v))
+}
+
+// NameContains applies the Contains predicate on the "name" field.
+func NameContains(v string) predicate.Task {
+	return predicate.Task(sql.FieldContains(FieldName, v))
+}
+
+// NameHasPrefix applies the HasPrefix predicate on the "name" field.
+func NameHasPrefix(v string) predicate.Task {
+	return predicate.Task(sql.FieldHasPrefix(FieldName, v))
+}
+
+// NameHasSuffix applies the HasSuffix predicate on the "name" field.
+func NameHasSuffix(v string) predicate.Task {
+	return predicate.Task(sql.FieldHasSuffix(FieldName, v))
+}
+
+// NameEqualFold applies the EqualFold predicate on the "name" field.
+func NameEqualFold(v string) predicate.Task {
+	return predicate.Task(sql.FieldEqualFold(FieldName, v))
+}
+
+// NameContainsFold applies the ContainsFold predicate on the "name" field.
+func NameContainsFold(v string) predicate.Task {
+	return predicate.Task(sql.FieldContainsFold(FieldName, v))
+}
+
+// CreatedAtEQ applies the EQ predicate on the "created_at" field.
+func CreatedAtEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtNEQ applies the NEQ predicate on the "created_at" field.
+func CreatedAtNEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtIn applies the In predicate on the "created_at" field.
+func CreatedAtIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
+func CreatedAtNotIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNotIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtGT applies the GT predicate on the "created_at" field.
+func CreatedAtGT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGT(FieldCreatedAt, v))
+}
+
+// CreatedAtGTE applies the GTE predicate on the "created_at" field.
+func CreatedAtGTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGTE(FieldCreatedAt, v))
+}
+
+// CreatedAtLT applies the LT predicate on the "created_at" field.
+func CreatedAtLT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLT(FieldCreatedAt, v))
+}
+
+// CreatedAtLTE applies the LTE predicate on the "created_at" field.
+func CreatedAtLTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLTE(FieldCreatedAt, v))
+}
+
+// UpdatedAtEQ applies the EQ predicate on the "updated_at" field.
+func UpdatedAtEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtNEQ applies the NEQ predicate on the "updated_at" field.
+func UpdatedAtNEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtIn applies the In predicate on the "updated_at" field.
+func UpdatedAtIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
+func UpdatedAtNotIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNotIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtGT applies the GT predicate on the "updated_at" field.
+func UpdatedAtGT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtGTE applies the GTE predicate on the "updated_at" field.
+func UpdatedAtGTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGTE(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLT applies the LT predicate on the "updated_at" field.
+func UpdatedAtLT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLTE applies the LTE predicate on the "updated_at" field.
+func UpdatedAtLTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLTE(FieldUpdatedAt, v))
+}
+
+// CompletedAtEQ applies the EQ predicate on the "completed_at" field.
+func CompletedAtEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldEQ(FieldCompletedAt, v))
+}
+
+// CompletedAtNEQ applies the NEQ predicate on the "completed_at" field.
+func CompletedAtNEQ(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNEQ(FieldCompletedAt, v))
+}
+
+// CompletedAtIn applies the In predicate on the "completed_at" field.
+func CompletedAtIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldIn(FieldCompletedAt, vs...))
+}
+
+// CompletedAtNotIn applies the NotIn predicate on the "completed_at" field.
+func CompletedAtNotIn(vs ...time.Time) predicate.Task {
+	return predicate.Task(sql.FieldNotIn(FieldCompletedAt, vs...))
+}
+
+// CompletedAtGT applies the GT predicate on the "completed_at" field.
+func CompletedAtGT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGT(FieldCompletedAt, v))
+}
+
+// CompletedAtGTE applies the GTE predicate on the "completed_at" field.
+func CompletedAtGTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldGTE(FieldCompletedAt, v))
+}
+
+// CompletedAtLT applies the LT predicate on the "completed_at" field.
+func CompletedAtLT(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLT(FieldCompletedAt, v))
+}
+
+// CompletedAtLTE applies the LTE predicate on the "completed_at" field.
+func CompletedAtLTE(v time.Time) predicate.Task {
+	return predicate.Task(sql.FieldLTE(FieldCompletedAt, v))
+}
+
+// CompletedAtIsNil applies the IsNil predicate on the "completed_at" field.
+func CompletedAtIsNil() predicate.Task {
+	return predicate.Task(sql.FieldIsNull(FieldCompletedAt))
+}
+
+// CompletedAtNotNil applies the NotNil predicate on the "completed_at" field.
+func CompletedAtNotNil() predicate.Task {
+	return predicate.Task(sql.FieldNotNull(FieldCompletedAt))
+}
+
+// TagsIsNil applies the IsNil predicate on the "tags" field.
+func TagsIsNil() predicate.Task {
+	return predicate.Task(sql.FieldIsNull(FieldTags))
+}
+
+// TagsNotNil applies the NotNil predicate on the "tags" field.
+func TagsNotNil() predicate.Task {
+	return predicate.Task(sql.FieldNotNull(FieldTags))
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Task) predicate.Task {
+	return predicate.Task(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Task) predicate.Task {
+	return predicate.Task(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Task) predicate.Task {
+	return predicate.Task(sql.NotPredicates(p))
+}

todo-list/ent/task_create.go

@@ -0,0 +1,304 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+	"todolist/ent/task"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// TaskCreate is the builder for creating a Task entity.
+type TaskCreate struct {
+	config
+	mutation *TaskMutation
+	hooks    []Hook
+}
+
+// SetName sets the "name" field.
+func (tc *TaskCreate) SetName(s string) *TaskCreate {
+	tc.mutation.SetName(s)
+	return tc
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (tc *TaskCreate) SetNillableName(s *string) *TaskCreate {
+	if s != nil {
+		tc.SetName(*s)
+	}
+	return tc
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (tc *TaskCreate) SetCreatedAt(t time.Time) *TaskCreate {
+	tc.mutation.SetCreatedAt(t)
+	return tc
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (tc *TaskCreate) SetNillableCreatedAt(t *time.Time) *TaskCreate {
+	if t != nil {
+		tc.SetCreatedAt(*t)
+	}
+	return tc
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (tc *TaskCreate) SetUpdatedAt(t time.Time) *TaskCreate {
+	tc.mutation.SetUpdatedAt(t)
+	return tc
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (tc *TaskCreate) SetNillableUpdatedAt(t *time.Time) *TaskCreate {
+	if t != nil {
+		tc.SetUpdatedAt(*t)
+	}
+	return tc
+}
+
+// SetCompletedAt sets the "completed_at" field.
+func (tc *TaskCreate) SetCompletedAt(t time.Time) *TaskCreate {
+	tc.mutation.SetCompletedAt(t)
+	return tc
+}
+
+// SetNillableCompletedAt sets the "completed_at" field if the given value is not nil.
+func (tc *TaskCreate) SetNillableCompletedAt(t *time.Time) *TaskCreate {
+	if t != nil {
+		tc.SetCompletedAt(*t)
+	}
+	return tc
+}
+
+// SetTags sets the "tags" field.
+func (tc *TaskCreate) SetTags(s []string) *TaskCreate {
+	tc.mutation.SetTags(s)
+	return tc
+}
+
+// SetID sets the "id" field.
+func (tc *TaskCreate) SetID(u uuid.UUID) *TaskCreate {
+	tc.mutation.SetID(u)
+	return tc
+}
+
+// SetNillableID sets the "id" field if the given value is not nil.
+func (tc *TaskCreate) SetNillableID(u *uuid.UUID) *TaskCreate {
+	if u != nil {
+		tc.SetID(*u)
+	}
+	return tc
+}
+
+// Mutation returns the TaskMutation object of the builder.
+func (tc *TaskCreate) Mutation() *TaskMutation {
+	return tc.mutation
+}
+
+// Save creates the Task in the database.
+func (tc *TaskCreate) Save(ctx context.Context) (*Task, error) {
+	tc.defaults()
+	return withHooks(ctx, tc.sqlSave, tc.mutation, tc.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (tc *TaskCreate) SaveX(ctx context.Context) *Task {
+	v, err := tc.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (tc *TaskCreate) Exec(ctx context.Context) error {
+	_, err := tc.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (tc *TaskCreate) ExecX(ctx context.Context) {
+	if err := tc.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (tc *TaskCreate) defaults() {
+	if _, ok := tc.mutation.Name(); !ok {
+		v := task.DefaultName
+		tc.mutation.SetName(v)
+	}
+	if _, ok := tc.mutation.CreatedAt(); !ok {
+		v := task.DefaultCreatedAt()
+		tc.mutation.SetCreatedAt(v)
+	}
+	if _, ok := tc.mutation.UpdatedAt(); !ok {
+		v := task.DefaultUpdatedAt()
+		tc.mutation.SetUpdatedAt(v)
+	}
+	if _, ok := tc.mutation.ID(); !ok {
+		v := task.DefaultID()
+		tc.mutation.SetID(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (tc *TaskCreate) check() error {
+	if _, ok := tc.mutation.Name(); !ok {
+		return &ValidationError{Name: "name", err: errors.New(`ent: missing required field "Task.name"`)}
+	}
+	if _, ok := tc.mutation.CreatedAt(); !ok {
+		return &ValidationError{Name: "created_at", err: errors.New(`ent: missing required field "Task.created_at"`)}
+	}
+	if _, ok := tc.mutation.UpdatedAt(); !ok {
+		return &ValidationError{Name: "updated_at", err: errors.New(`ent: missing required field "Task.updated_at"`)}
+	}
+	return nil
+}
+
+func (tc *TaskCreate) sqlSave(ctx context.Context) (*Task, error) {
+	if err := tc.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := tc.createSpec()
+	if err := sqlgraph.CreateNode(ctx, tc.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	if _spec.ID.Value != nil {
+		if id, ok := _spec.ID.Value.(*uuid.UUID); ok {
+			_node.ID = *id
+		} else if err := _node.ID.Scan(_spec.ID.Value); err != nil {
+			return nil, err
+		}
+	}
+	tc.mutation.id = &_node.ID
+	tc.mutation.done = true
+	return _node, nil
+}
+
+func (tc *TaskCreate) createSpec() (*Task, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Task{config: tc.config}
+		_spec = sqlgraph.NewCreateSpec(task.Table, sqlgraph.NewFieldSpec(task.FieldID, field.TypeUUID))
+	)
+	if id, ok := tc.mutation.ID(); ok {
+		_node.ID = id
+		_spec.ID.Value = &id
+	}
+	if value, ok := tc.mutation.Name(); ok {
+		_spec.SetField(task.FieldName, field.TypeString, value)
+		_node.Name = value
+	}
+	if value, ok := tc.mutation.CreatedAt(); ok {
+		_spec.SetField(task.FieldCreatedAt, field.TypeTime, value)
+		_node.CreatedAt = value
+	}
+	if value, ok := tc.mutation.UpdatedAt(); ok {
+		_spec.SetField(task.FieldUpdatedAt, field.TypeTime, value)
+		_node.UpdatedAt = value
+	}
+	if value, ok := tc.mutation.CompletedAt(); ok {
+		_spec.SetField(task.FieldCompletedAt, field.TypeTime, value)
+		_node.CompletedAt = &value
+	}
+	if value, ok := tc.mutation.Tags(); ok {
+		_spec.SetField(task.FieldTags, field.TypeJSON, value)
+		_node.Tags = value
+	}
+	return _node, _spec
+}
+
+// TaskCreateBulk is the builder for creating many Task entities in bulk.
+type TaskCreateBulk struct {
+	config
+	err      error
+	builders []*TaskCreate
+}
+
+// Save creates the Task entities in the database.
+func (tcb *TaskCreateBulk) Save(ctx context.Context) ([]*Task, error) {
+	if tcb.err != nil {
+		return nil, tcb.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(tcb.builders))
+	nodes := make([]*Task, len(tcb.builders))
+	mutators := make([]Mutator, len(tcb.builders))
+	for i := range tcb.builders {
+		func(i int, root context.Context) {
+			builder := tcb.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*TaskMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, tcb.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, tcb.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, tcb.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (tcb *TaskCreateBulk) SaveX(ctx context.Context) []*Task {
+	v, err := tcb.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (tcb *TaskCreateBulk) Exec(ctx context.Context) error {
+	_, err := tcb.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (tcb *TaskCreateBulk) ExecX(ctx context.Context) {
+	if err := tcb.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

todo-list/ent/task_delete.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"todolist/ent/predicate"
+	"todolist/ent/task"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// TaskDelete is the builder for deleting a Task entity.
+type TaskDelete struct {
+	config
+	hooks    []Hook
+	mutation *TaskMutation
+}
+
+// Where appends a list predicates to the TaskDelete builder.
+func (td *TaskDelete) Where(ps ...predicate.Task) *TaskDelete {
+	td.mutation.Where(ps...)
+	return td
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (td *TaskDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, td.sqlExec, td.mutation, td.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (td *TaskDelete) ExecX(ctx context.Context) int {
+	n, err := td.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (td *TaskDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(task.Table, sqlgraph.NewFieldSpec(task.FieldID, field.TypeUUID))
+	if ps := td.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, td.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	td.mutation.done = true
+	return affected, err
+}
+
+// TaskDeleteOne is the builder for deleting a single Task entity.
+type TaskDeleteOne struct {
+	td *TaskDelete
+}
+
+// Where appends a list predicates to the TaskDelete builder.
+func (tdo *TaskDeleteOne) Where(ps ...predicate.Task) *TaskDeleteOne {
+	tdo.td.mutation.Where(ps...)
+	return tdo
+}
+
+// Exec executes the deletion query.
+func (tdo *TaskDeleteOne) Exec(ctx context.Context) error {
+	n, err := tdo.td.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{task.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (tdo *TaskDeleteOne) ExecX(ctx context.Context) {
+	if err := tdo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

todo-list/ent/task_query.go

@@ -0,0 +1,528 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"todolist/ent/predicate"
+	"todolist/ent/task"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/google/uuid"
+)
+
+// TaskQuery is the builder for querying Task entities.
+type TaskQuery struct {
+	config
+	ctx        *QueryContext
+	order      []task.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Task
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the TaskQuery builder.
+func (tq *TaskQuery) Where(ps ...predicate.Task) *TaskQuery {
+	tq.predicates = append(tq.predicates, ps...)
+	return tq
+}
+
+// Limit the number of records to be returned by this query.
+func (tq *TaskQuery) Limit(limit int) *TaskQuery {
+	tq.ctx.Limit = &limit
+	return tq
+}
+
+// Offset to start from.
+func (tq *TaskQuery) Offset(offset int) *TaskQuery {
+	tq.ctx.Offset = &offset
+	return tq
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (tq *TaskQuery) Unique(unique bool) *TaskQuery {
+	tq.ctx.Unique = &unique
+	return tq
+}
+
+// Order specifies how the records should be ordered.
+func (tq *TaskQuery) Order(o ...task.OrderOption) *TaskQuery {
+	tq.order = append(tq.order, o...)
+	return tq
+}
+
+// First returns the first Task entity from the query.
+// Returns a *NotFoundError when no Task was found.
+func (tq *TaskQuery) First(ctx context.Context) (*Task, error) {
+	nodes, err := tq.Limit(1).All(setContextOp(ctx, tq.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{task.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (tq *TaskQuery) FirstX(ctx context.Context) *Task {
+	node, err := tq.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Task ID from the query.
+// Returns a *NotFoundError when no Task ID was found.
+func (tq *TaskQuery) FirstID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = tq.Limit(1).IDs(setContextOp(ctx, tq.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{task.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (tq *TaskQuery) FirstIDX(ctx context.Context) uuid.UUID {
+	id, err := tq.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Task entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Task entity is found.
+// Returns a *NotFoundError when no Task entities are found.
+func (tq *TaskQuery) Only(ctx context.Context) (*Task, error) {
+	nodes, err := tq.Limit(2).All(setContextOp(ctx, tq.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{task.Label}
+	default:
+		return nil, &NotSingularError{task.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (tq *TaskQuery) OnlyX(ctx context.Context) *Task {
+	node, err := tq.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Task ID in the query.
+// Returns a *NotSingularError when more than one Task ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (tq *TaskQuery) OnlyID(ctx context.Context) (id uuid.UUID, err error) {
+	var ids []uuid.UUID
+	if ids, err = tq.Limit(2).IDs(setContextOp(ctx, tq.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{task.Label}
+	default:
+		err = &NotSingularError{task.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (tq *TaskQuery) OnlyIDX(ctx context.Context) uuid.UUID {
+	id, err := tq.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Tasks.
+func (tq *TaskQuery) All(ctx context.Context) ([]*Task, error) {
+	ctx = setContextOp(ctx, tq.ctx, ent.OpQueryAll)
+	if err := tq.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Task, *TaskQuery]()
+	return withInterceptors[[]*Task](ctx, tq, qr, tq.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (tq *TaskQuery) AllX(ctx context.Context) []*Task {
+	nodes, err := tq.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Task IDs.
+func (tq *TaskQuery) IDs(ctx context.Context) (ids []uuid.UUID, err error) {
+	if tq.ctx.Unique == nil && tq.path != nil {
+		tq.Unique(true)
+	}
+	ctx = setContextOp(ctx, tq.ctx, ent.OpQueryIDs)
+	if err = tq.Select(task.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (tq *TaskQuery) IDsX(ctx context.Context) []uuid.UUID {
+	ids, err := tq.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (tq *TaskQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, tq.ctx, ent.OpQueryCount)
+	if err := tq.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, tq, querierCount[*TaskQuery](), tq.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (tq *TaskQuery) CountX(ctx context.Context) int {
+	count, err := tq.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (tq *TaskQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, tq.ctx, ent.OpQueryExist)
+	switch _, err := tq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (tq *TaskQuery) ExistX(ctx context.Context) bool {
+	exist, err := tq.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the TaskQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (tq *TaskQuery) Clone() *TaskQuery {
+	if tq == nil {
+		return nil
+	}
+	return &TaskQuery{
+		config:     tq.config,
+		ctx:        tq.ctx.Clone(),
+		order:      append([]task.OrderOption{}, tq.order...),
+		inters:     append([]Interceptor{}, tq.inters...),
+		predicates: append([]predicate.Task{}, tq.predicates...),
+		// clone intermediate query.
+		sql:  tq.sql.Clone(),
+		path: tq.path,
+	}
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Name string `json:"name,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Task.Query().
+//		GroupBy(task.FieldName).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (tq *TaskQuery) GroupBy(field string, fields ...string) *TaskGroupBy {
+	tq.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &TaskGroupBy{build: tq}
+	grbuild.flds = &tq.ctx.Fields
+	grbuild.label = task.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Name string `json:"name,omitempty"`
+//	}
+//
+//	client.Task.Query().
+//		Select(task.FieldName).
+//		Scan(ctx, &v)
+func (tq *TaskQuery) Select(fields ...string) *TaskSelect {
+	tq.ctx.Fields = append(tq.ctx.Fields, fields...)
+	sbuild := &TaskSelect{TaskQuery: tq}
+	sbuild.label = task.Label
+	sbuild.flds, sbuild.scan = &tq.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a TaskSelect configured with the given aggregations.
+func (tq *TaskQuery) Aggregate(fns ...AggregateFunc) *TaskSelect {
+	return tq.Select().Aggregate(fns...)
+}
+
+func (tq *TaskQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range tq.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, tq); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range tq.ctx.Fields {
+		if !task.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if tq.path != nil {
+		prev, err := tq.path(ctx)
+		if err != nil {
+			return err
+		}
+		tq.sql = prev
+	}
+	return nil
+}
+
+func (tq *TaskQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Task, error) {
+	var (
+		nodes = []*Task{}
+		_spec = tq.querySpec()
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Task).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Task{config: tq.config}
+		nodes = append(nodes, node)
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, tq.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	return nodes, nil
+}
+
+func (tq *TaskQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := tq.querySpec()
+	_spec.Node.Columns = tq.ctx.Fields
+	if len(tq.ctx.Fields) > 0 {
+		_spec.Unique = tq.ctx.Unique != nil && *tq.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, tq.driver, _spec)
+}
+
+func (tq *TaskQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(task.Table, task.Columns, sqlgraph.NewFieldSpec(task.FieldID, field.TypeUUID))
+	_spec.From = tq.sql
+	if unique := tq.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if tq.path != nil {
+		_spec.Unique = true
+	}
+	if fields := tq.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, task.FieldID)
+		for i := range fields {
+			if fields[i] != task.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := tq.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := tq.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := tq.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := tq.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (tq *TaskQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(tq.driver.Dialect())
+	t1 := builder.Table(task.Table)
+	columns := tq.ctx.Fields
+	if len(columns) == 0 {
+		columns = task.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if tq.sql != nil {
+		selector = tq.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if tq.ctx.Unique != nil && *tq.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range tq.predicates {
+		p(selector)
+	}
+	for _, p := range tq.order {
+		p(selector)
+	}
+	if offset := tq.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := tq.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// TaskGroupBy is the group-by builder for Task entities.
+type TaskGroupBy struct {
+	selector
+	build *TaskQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (tgb *TaskGroupBy) Aggregate(fns ...AggregateFunc) *TaskGroupBy {
+	tgb.fns = append(tgb.fns, fns...)
+	return tgb
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (tgb *TaskGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, tgb.build.ctx, ent.OpQueryGroupBy)
+	if err := tgb.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*TaskQuery, *TaskGroupBy](ctx, tgb.build, tgb, tgb.build.inters, v)
+}
+
+func (tgb *TaskGroupBy) sqlScan(ctx context.Context, root *TaskQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(tgb.fns))
+	for _, fn := range tgb.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*tgb.flds)+len(tgb.fns))
+		for _, f := range *tgb.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*tgb.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := tgb.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// TaskSelect is the builder for selecting fields of Task entities.
+type TaskSelect struct {
+	*TaskQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (ts *TaskSelect) Aggregate(fns ...AggregateFunc) *TaskSelect {
+	ts.fns = append(ts.fns, fns...)
+	return ts
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (ts *TaskSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, ts.ctx, ent.OpQuerySelect)
+	if err := ts.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*TaskQuery, *TaskSelect](ctx, ts.TaskQuery, ts, ts.inters, v)
+}
+
+func (ts *TaskSelect) sqlScan(ctx context.Context, root *TaskQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(ts.fns))
+	for _, fn := range ts.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*ts.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := ts.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

todo-list/ent/task_update.go

@@ -0,0 +1,389 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+	"todolist/ent/predicate"
+	"todolist/ent/task"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/dialect/sql/sqljson"
+	"entgo.io/ent/schema/field"
+)
+
+// TaskUpdate is the builder for updating Task entities.
+type TaskUpdate struct {
+	config
+	hooks    []Hook
+	mutation *TaskMutation
+}
+
+// Where appends a list predicates to the TaskUpdate builder.
+func (tu *TaskUpdate) Where(ps ...predicate.Task) *TaskUpdate {
+	tu.mutation.Where(ps...)
+	return tu
+}
+
+// SetName sets the "name" field.
+func (tu *TaskUpdate) SetName(s string) *TaskUpdate {
+	tu.mutation.SetName(s)
+	return tu
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (tu *TaskUpdate) SetNillableName(s *string) *TaskUpdate {
+	if s != nil {
+		tu.SetName(*s)
+	}
+	return tu
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (tu *TaskUpdate) SetCreatedAt(t time.Time) *TaskUpdate {
+	tu.mutation.SetCreatedAt(t)
+	return tu
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (tu *TaskUpdate) SetNillableCreatedAt(t *time.Time) *TaskUpdate {
+	if t != nil {
+		tu.SetCreatedAt(*t)
+	}
+	return tu
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (tu *TaskUpdate) SetUpdatedAt(t time.Time) *TaskUpdate {
+	tu.mutation.SetUpdatedAt(t)
+	return tu
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (tu *TaskUpdate) SetNillableUpdatedAt(t *time.Time) *TaskUpdate {
+	if t != nil {
+		tu.SetUpdatedAt(*t)
+	}
+	return tu
+}
+
+// SetCompletedAt sets the "completed_at" field.
+func (tu *TaskUpdate) SetCompletedAt(t time.Time) *TaskUpdate {
+	tu.mutation.SetCompletedAt(t)
+	return tu
+}
+
+// SetNillableCompletedAt sets the "completed_at" field if the given value is not nil.
+func (tu *TaskUpdate) SetNillableCompletedAt(t *time.Time) *TaskUpdate {
+	if t != nil {
+		tu.SetCompletedAt(*t)
+	}
+	return tu
+}
+
+// ClearCompletedAt clears the value of the "completed_at" field.
+func (tu *TaskUpdate) ClearCompletedAt() *TaskUpdate {
+	tu.mutation.ClearCompletedAt()
+	return tu
+}
+
+// SetTags sets the "tags" field.
+func (tu *TaskUpdate) SetTags(s []string) *TaskUpdate {
+	tu.mutation.SetTags(s)
+	return tu
+}
+
+// AppendTags appends s to the "tags" field.
+func (tu *TaskUpdate) AppendTags(s []string) *TaskUpdate {
+	tu.mutation.AppendTags(s)
+	return tu
+}
+
+// ClearTags clears the value of the "tags" field.
+func (tu *TaskUpdate) ClearTags() *TaskUpdate {
+	tu.mutation.ClearTags()
+	return tu
+}
+
+// Mutation returns the TaskMutation object of the builder.
+func (tu *TaskUpdate) Mutation() *TaskMutation {
+	return tu.mutation
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (tu *TaskUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, tu.sqlSave, tu.mutation, tu.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (tu *TaskUpdate) SaveX(ctx context.Context) int {
+	affected, err := tu.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (tu *TaskUpdate) Exec(ctx context.Context) error {
+	_, err := tu.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (tu *TaskUpdate) ExecX(ctx context.Context) {
+	if err := tu.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (tu *TaskUpdate) sqlSave(ctx context.Context) (n int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(task.Table, task.Columns, sqlgraph.NewFieldSpec(task.FieldID, field.TypeUUID))
+	if ps := tu.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := tu.mutation.Name(); ok {
+		_spec.SetField(task.FieldName, field.TypeString, value)
+	}
+	if value, ok := tu.mutation.CreatedAt(); ok {
+		_spec.SetField(task.FieldCreatedAt, field.TypeTime, value)
+	}
+	if value, ok := tu.mutation.UpdatedAt(); ok {
+		_spec.SetField(task.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := tu.mutation.CompletedAt(); ok {
+		_spec.SetField(task.FieldCompletedAt, field.TypeTime, value)
+	}
+	if tu.mutation.CompletedAtCleared() {
+		_spec.ClearField(task.FieldCompletedAt, field.TypeTime)
+	}
+	if value, ok := tu.mutation.Tags(); ok {
+		_spec.SetField(task.FieldTags, field.TypeJSON, value)
+	}
+	if value, ok := tu.mutation.AppendedTags(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, task.FieldTags, value)
+		})
+	}
+	if tu.mutation.TagsCleared() {
+		_spec.ClearField(task.FieldTags, field.TypeJSON)
+	}
+	if n, err = sqlgraph.UpdateNodes(ctx, tu.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{task.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	tu.mutation.done = true
+	return n, nil
+}
+
+// TaskUpdateOne is the builder for updating a single Task entity.
+type TaskUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *TaskMutation
+}
+
+// SetName sets the "name" field.
+func (tuo *TaskUpdateOne) SetName(s string) *TaskUpdateOne {
+	tuo.mutation.SetName(s)
+	return tuo
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (tuo *TaskUpdateOne) SetNillableName(s *string) *TaskUpdateOne {
+	if s != nil {
+		tuo.SetName(*s)
+	}
+	return tuo
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (tuo *TaskUpdateOne) SetCreatedAt(t time.Time) *TaskUpdateOne {
+	tuo.mutation.SetCreatedAt(t)
+	return tuo
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (tuo *TaskUpdateOne) SetNillableCreatedAt(t *time.Time) *TaskUpdateOne {
+	if t != nil {
+		tuo.SetCreatedAt(*t)
+	}
+	return tuo
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (tuo *TaskUpdateOne) SetUpdatedAt(t time.Time) *TaskUpdateOne {
+	tuo.mutation.SetUpdatedAt(t)
+	return tuo
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (tuo *TaskUpdateOne) SetNillableUpdatedAt(t *time.Time) *TaskUpdateOne {
+	if t != nil {
+		tuo.SetUpdatedAt(*t)
+	}
+	return tuo
+}
+
+// SetCompletedAt sets the "completed_at" field.
+func (tuo *TaskUpdateOne) SetCompletedAt(t time.Time) *TaskUpdateOne {
+	tuo.mutation.SetCompletedAt(t)
+	return tuo
+}
+
+// SetNillableCompletedAt sets the "completed_at" field if the given value is not nil.
+func (tuo *TaskUpdateOne) SetNillableCompletedAt(t *time.Time) *TaskUpdateOne {
+	if t != nil {
+		tuo.SetCompletedAt(*t)
+	}
+	return tuo
+}
+
+// ClearCompletedAt clears the value of the "completed_at" field.
+func (tuo *TaskUpdateOne) ClearCompletedAt() *TaskUpdateOne {
+	tuo.mutation.ClearCompletedAt()
+	return tuo
+}
+
+// SetTags sets the "tags" field.
+func (tuo *TaskUpdateOne) SetTags(s []string) *TaskUpdateOne {
+	tuo.mutation.SetTags(s)
+	return tuo
+}
+
+// AppendTags appends s to the "tags" field.
+func (tuo *TaskUpdateOne) AppendTags(s []string) *TaskUpdateOne {
+	tuo.mutation.AppendTags(s)
+	return tuo
+}
+
+// ClearTags clears the value of the "tags" field.
+func (tuo *TaskUpdateOne) ClearTags() *TaskUpdateOne {
+	tuo.mutation.ClearTags()
+	return tuo
+}
+
+// Mutation returns the TaskMutation object of the builder.
+func (tuo *TaskUpdateOne) Mutation() *TaskMutation {
+	return tuo.mutation
+}
+
+// Where appends a list predicates to the TaskUpdate builder.
+func (tuo *TaskUpdateOne) Where(ps ...predicate.Task) *TaskUpdateOne {
+	tuo.mutation.Where(ps...)
+	return tuo
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (tuo *TaskUpdateOne) Select(field string, fields ...string) *TaskUpdateOne {
+	tuo.fields = append([]string{field}, fields...)
+	return tuo
+}
+
+// Save executes the query and returns the updated Task entity.
+func (tuo *TaskUpdateOne) Save(ctx context.Context) (*Task, error) {
+	return withHooks(ctx, tuo.sqlSave, tuo.mutation, tuo.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (tuo *TaskUpdateOne) SaveX(ctx context.Context) *Task {
+	node, err := tuo.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (tuo *TaskUpdateOne) Exec(ctx context.Context) error {
+	_, err := tuo.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (tuo *TaskUpdateOne) ExecX(ctx context.Context) {
+	if err := tuo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (tuo *TaskUpdateOne) sqlSave(ctx context.Context) (_node *Task, err error) {
+	_spec := sqlgraph.NewUpdateSpec(task.Table, task.Columns, sqlgraph.NewFieldSpec(task.FieldID, field.TypeUUID))
+	id, ok := tuo.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Task.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := tuo.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, task.FieldID)
+		for _, f := range fields {
+			if !task.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != task.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := tuo.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := tuo.mutation.Name(); ok {
+		_spec.SetField(task.FieldName, field.TypeString, value)
+	}
+	if value, ok := tuo.mutation.CreatedAt(); ok {
+		_spec.SetField(task.FieldCreatedAt, field.TypeTime, value)
+	}
+	if value, ok := tuo.mutation.UpdatedAt(); ok {
+		_spec.SetField(task.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := tuo.mutation.CompletedAt(); ok {
+		_spec.SetField(task.FieldCompletedAt, field.TypeTime, value)
+	}
+	if tuo.mutation.CompletedAtCleared() {
+		_spec.ClearField(task.FieldCompletedAt, field.TypeTime)
+	}
+	if value, ok := tuo.mutation.Tags(); ok {
+		_spec.SetField(task.FieldTags, field.TypeJSON, value)
+	}
+	if value, ok := tuo.mutation.AppendedTags(); ok {
+		_spec.AddModifier(func(u *sql.UpdateBuilder) {
+			sqljson.Append(u, task.FieldTags, value)
+		})
+	}
+	if tuo.mutation.TagsCleared() {
+		_spec.ClearField(task.FieldTags, field.TypeJSON)
+	}
+	_node = &Task{config: tuo.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, tuo.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{task.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	tuo.mutation.done = true
+	return _node, nil
+}

todo-list/ent/tx.go

@@ -0,0 +1,210 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"sync"
+
+	"entgo.io/ent/dialect"
+)
+
+// Tx is a transactional client that is created by calling Client.Tx().
+type Tx struct {
+	config
+	// Task is the client for interacting with the Task builders.
+	Task *TaskClient
+
+	// lazily loaded.
+	client     *Client
+	clientOnce sync.Once
+	// ctx lives for the life of the transaction. It is
+	// the same context used by the underlying connection.
+	ctx context.Context
+}
+
+type (
+	// Committer is the interface that wraps the Commit method.
+	Committer interface {
+		Commit(context.Context, *Tx) error
+	}
+
+	// The CommitFunc type is an adapter to allow the use of ordinary
+	// function as a Committer. If f is a function with the appropriate
+	// signature, CommitFunc(f) is a Committer that calls f.
+	CommitFunc func(context.Context, *Tx) error
+
+	// CommitHook defines the "commit middleware". A function that gets a Committer
+	// and returns a Committer. For example:
+	//
+	//	hook := func(next ent.Committer) ent.Committer {
+	//		return ent.CommitFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Commit(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	CommitHook func(Committer) Committer
+)
+
+// Commit calls f(ctx, m).
+func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Commit commits the transaction.
+func (tx *Tx) Commit() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Committer = CommitFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Commit()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]CommitHook(nil), txDriver.onCommit...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Commit(tx.ctx, tx)
+}
+
+// OnCommit adds a hook to call on commit.
+func (tx *Tx) OnCommit(f CommitHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onCommit = append(txDriver.onCommit, f)
+	txDriver.mu.Unlock()
+}
+
+type (
+	// Rollbacker is the interface that wraps the Rollback method.
+	Rollbacker interface {
+		Rollback(context.Context, *Tx) error
+	}
+
+	// The RollbackFunc type is an adapter to allow the use of ordinary
+	// function as a Rollbacker. If f is a function with the appropriate
+	// signature, RollbackFunc(f) is a Rollbacker that calls f.
+	RollbackFunc func(context.Context, *Tx) error
+
+	// RollbackHook defines the "rollback middleware". A function that gets a Rollbacker
+	// and returns a Rollbacker. For example:
+	//
+	//	hook := func(next ent.Rollbacker) ent.Rollbacker {
+	//		return ent.RollbackFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Rollback(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	RollbackHook func(Rollbacker) Rollbacker
+)
+
+// Rollback calls f(ctx, m).
+func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Rollback rollbacks the transaction.
+func (tx *Tx) Rollback() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Rollbacker = RollbackFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Rollback()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]RollbackHook(nil), txDriver.onRollback...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Rollback(tx.ctx, tx)
+}
+
+// OnRollback adds a hook to call on rollback.
+func (tx *Tx) OnRollback(f RollbackHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onRollback = append(txDriver.onRollback, f)
+	txDriver.mu.Unlock()
+}
+
+// Client returns a Client that binds to current transaction.
+func (tx *Tx) Client() *Client {
+	tx.clientOnce.Do(func() {
+		tx.client = &Client{config: tx.config}
+		tx.client.init()
+	})
+	return tx.client
+}
+
+func (tx *Tx) init() {
+	tx.Task = NewTaskClient(tx.config)
+}
+
+// txDriver wraps the given dialect.Tx with a nop dialect.Driver implementation.
+// The idea is to support transactions without adding any extra code to the builders.
+// When a builder calls to driver.Tx(), it gets the same dialect.Tx instance.
+// Commit and Rollback are nop for the internal builders and the user must call one
+// of them in order to commit or rollback the transaction.
+//
+// If a closed transaction is embedded in one of the generated entities, and the entity
+// applies a query, for example: Task.QueryXXX(), the query will be executed
+// through the driver which created this transaction.
+//
+// Note that txDriver is not goroutine safe.
+type txDriver struct {
+	// the driver we started the transaction from.
+	drv dialect.Driver
+	// tx is the underlying transaction.
+	tx dialect.Tx
+	// completion hooks.
+	mu         sync.Mutex
+	onCommit   []CommitHook
+	onRollback []RollbackHook
+}
+
+// newTx creates a new transactional driver.
+func newTx(ctx context.Context, drv dialect.Driver) (*txDriver, error) {
+	tx, err := drv.Tx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &txDriver{tx: tx, drv: drv}, nil
+}
+
+// Tx returns the transaction wrapper (txDriver) to avoid Commit or Rollback calls
+// from the internal builders. Should be called only by the internal builders.
+func (tx *txDriver) Tx(context.Context) (dialect.Tx, error) { return tx, nil }
+
+// Dialect returns the dialect of the driver we started the transaction from.
+func (tx *txDriver) Dialect() string { return tx.drv.Dialect() }
+
+// Close is a nop close.
+func (*txDriver) Close() error { return nil }
+
+// Commit is a nop commit for the internal builders.
+// User must call `Tx.Commit` in order to commit the transaction.
+func (*txDriver) Commit() error { return nil }
+
+// Rollback is a nop rollback for the internal builders.
+// User must call `Tx.Rollback` in order to rollback the transaction.
+func (*txDriver) Rollback() error { return nil }
+
+// Exec calls tx.Exec.
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Exec(ctx, query, args, v)
+}
+
+// Query calls tx.Query.
+func (tx *txDriver) Query(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Query(ctx, query, args, v)
+}
+
+var _ dialect.Driver = (*txDriver)(nil)

todo-list/go.mod

@@ -0,0 +1,32 @@
+module todolist
+
+go 1.23.0
+
+require (
+	entgo.io/ent v0.14.1
+	github.com/labstack/echo/v4 v4.12.0
+	github.com/maddalax/htmgo/framework v0.0.0-20240918150417-f0f979e3a293
+	github.com/mattn/go-sqlite3 v1.14.16
+)
+
+require (
+	ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43 // indirect
+	github.com/agext/levenshtein v1.2.1 // indirect
+	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/go-openapi/inflect v0.19.0 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/hcl/v2 v2.13.0 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/go-wordwrap v0.0.0-20150314170334-ad45545899c7 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	github.com/zclconf/go-cty v1.8.0 // indirect
+	golang.org/x/crypto v0.27.0 // indirect
+	golang.org/x/mod v0.20.0 // indirect
+	golang.org/x/net v0.29.0 // indirect
+	golang.org/x/sys v0.25.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
+)

todo-list/go.sum

@@ -0,0 +1,100 @@
+ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43 h1:GwdJbXydHCYPedeeLt4x/lrlIISQ4JTH1mRWuE5ZZ14=
+ariga.io/atlas v0.19.1-0.20240203083654-5948b60a8e43/go.mod h1:uj3pm+hUTVN/X5yfdBexHlZv+1Xu5u5ZbZx7+CDavNU=
+entgo.io/ent v0.14.1 h1:fUERL506Pqr92EPHJqr8EYxbPioflJo6PudkrEA8a/s=
+entgo.io/ent v0.14.1/go.mod h1:MH6XLG0KXpkcDQhKiHfANZSzR55TJyPL5IGNpI8wpco=
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
+github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/agext/levenshtein v1.2.1 h1:QmvMAjj2aEICytGiWzmxoE0x2KZvE0fvmqMOfy2tjT8=
+github.com/agext/levenshtein v1.2.1/go.mod h1:JEDfjyjHDjOF/1e4FlBE/PkbqA9OfWu2ki2W0IB5558=
+github.com/apparentlymart/go-textseg/v13 v13.0.0 h1:Y+KvPE1NYz0xl601PVImeQfFyEy6iT90AvPUL1NNfNw=
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+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-openapi/inflect v0.19.0 h1:9jCH9scKIbHeV9m12SmPilScz6krDxKRasNNSNPXu/4=
+github.com/go-openapi/inflect v0.19.0/go.mod h1:lHpZVlpIQqLyKwJ4N+YSc9hchQy/i12fJykb83CRBH4=
+github.com/go-test/deep v1.0.3 h1:ZrJSEWsXzPOxaZnFteGEfooLba+ju3FYIbOrS+rQd68=
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+google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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todo-list/infrastructure/db/db.go

@@ -0,0 +1,21 @@
+package db
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"todolist/ent"
+)
+
+func Provide() *ent.Client {
+	fmt.Printf("providing db client\n")
+	client, err := ent.Open("sqlite3", "file:ent.db?cache=shared&_fk=1")
+	if err != nil {
+		log.Fatalf("failed opening connection to sqlite: %v", err)
+	}
+	// Run the auto migration tool.
+	if err := client.Schema.Create(context.Background()); err != nil {
+		log.Fatalf("failed schema resources: %v", err)
+	}
+	return client
+}

todo-list/internal/tasks/service.go

@@ -0,0 +1,83 @@
+package tasks
+
+import (
+	"context"
+	"github.com/google/uuid"
+	"github.com/maddalax/htmgo/framework/htmgo/service"
+	"time"
+	"todolist/ent"
+	"todolist/ent/predicate"
+	"todolist/ent/task"
+)
+
+type Service struct {
+	db *ent.Client
+}
+
+type CreateRequest struct {
+	Name string
+	Tags []string
+}
+
+func NewService(locator *service.Locator) Service {
+	return Service{
+		db: service.Get[ent.Client](locator),
+	}
+}
+
+func (s *Service) Create(request CreateRequest) (*ent.Task, error) {
+	return s.db.Task.Create().
+		SetName(request.Name).
+		SetTags(request.Tags).
+		Save(context.Background())
+}
+
+func (s *Service) Get(id uuid.UUID) (*ent.Task, error) {
+	return s.db.Task.Get(context.Background(), id)
+}
+
+func (s *Service) SetName(id uuid.UUID, name string) (*ent.Task, error) {
+	return s.db.Task.UpdateOneID(id).SetName(name).Save(context.Background())
+}
+
+func (s *Service) SetAllCompleted(value bool) error {
+	ctx := context.Background()
+	updater := s.db.Task.Update()
+
+	if value {
+		updater = updater.SetCompletedAt(time.Now())
+	} else {
+		updater = updater.ClearCompletedAt()
+	}
+
+	_, err := updater.
+		SetUpdatedAt(time.Now()).
+		Save(ctx)
+
+	return err
+}
+
+func (s *Service) ClearCompleted() error {
+	ctx := context.Background()
+	_, err := s.db.Task.Delete().Where(task.CompletedAtNotNil()).Exec(ctx)
+	return err
+}
+
+func (s *Service) SetCompleted(id uuid.UUID, value bool) (*ent.Task, error) {
+	ctx := context.Background()
+	updater := s.db.Task.UpdateOneID(id)
+
+	if value {
+		updater = updater.SetCompletedAt(time.Now())
+	} else {
+		updater = updater.ClearCompletedAt()
+	}
+
+	return updater.
+		SetUpdatedAt(time.Now()).
+		Save(ctx)
+}
+
+func (s *Service) List(ps ...predicate.Task) ([]*ent.Task, error) {
+	return s.db.Task.Query().Where(ps...).All(context.Background())
+}

todo-list/main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/maddalax/htmgo/framework/h"
+	"github.com/maddalax/htmgo/framework/htmgo/service"
+	_ "github.com/mattn/go-sqlite3"
+	"todolist/ent"
+	"todolist/infrastructure/db"
+	"todolist/pages"
+	"todolist/partials/load"
+)
+
+type CustomContext struct {
+	echo.Context
+	locator *service.Locator
+}
+
+func (c *CustomContext) ServiceLocator() *service.Locator {
+	return c.locator
+}
+
+func main() {
+	locator := service.NewLocator()
+
+	service.Set[ent.Client](locator, service.Singleton, func() *ent.Client {
+		return db.Provide()
+	})
+
+	h.Start(h.AppOpts{
+		ServiceLocator: locator,
+		LiveReload:     true,
+		Register: func(e *echo.Echo) {
+			e.Static("/public", "./assets/dist")
+			load.RegisterPartials(e)
+			pages.RegisterPages(e)
+		},
+	})
+}

todo-list/pages/base/root.go

@@ -0,0 +1,25 @@
+package base
+
+import (
+	"github.com/maddalax/htmgo/framework/h"
+	"strings"
+)
+
+func Extensions() string {
+	extensions := []string{"path-deps", "response-targets", "mutation-error"}
+	if h.IsDevelopment() {
+		extensions = append(extensions, "livereload")
+	}
+	return strings.Join(extensions, ", ")
+}
+
+func RootPage(children ...h.Renderable) h.Renderable {
+	return h.Html(
+		h.HxExtension(Extensions()),
+		h.Head(
+			h.Link("/public/main.css", "stylesheet"),
+			h.Script("/public/htmgo.js"),
+		),
+		h.Fragment(children...),
+	)
+}

todo-list/pages/generated.go

@@ -0,0 +1,16 @@
+// Package pages THIS FILE IS GENERATED. DO NOT EDIT.
+package pages
+
+import "github.com/labstack/echo/v4"
+import "github.com/maddalax/htmgo/framework/h"
+
+func RegisterPages(f *echo.Echo) {
+	f.GET("/", func(ctx echo.Context) error {
+		cc := ctx.(*h.RequestContext)
+		return h.HtmlView(ctx, IndexPage(cc))
+	})
+	f.GET("/tasks", func(ctx echo.Context) error {
+		cc := ctx.(*h.RequestContext)
+		return h.HtmlView(ctx, TaskListPage(cc))
+	})
+}

todo-list/pages/index.go

@@ -0,0 +1,40 @@
+package pages
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/maddalax/htmgo/framework/h"
+	"todolist/pages/base"
+	"todolist/partials"
+)
+
+func IndexPage(c echo.Context) *h.Page {
+	return h.NewPage(h.Html(
+		h.HxExtension(base.Extensions()),
+		h.Class("bg-red-200 flex flex-col items-center h-full w-full"),
+		h.Head(
+			h.Link("/public/main.css", "stylesheet"),
+			h.Script("/public/htmgo.js"),
+		),
+		h.Body(
+			h.Class("flex flex-col gap-4"),
+			h.Div(h.Class("flex gap-2 mt-6"),
+				Button(),
+				Button(),
+				Button(),
+				Button(),
+			),
+		),
+	))
+}
+
+func Button() h.Renderable {
+	return h.Button(h.Class("btn bg-green-500 p-4 rounded text-white"),
+		h.Text("my button"),
+		h.AfterRequest(
+			h.SetDisabled(true),
+			h.RemoveClass("bg-red-600"),
+			h.AddClass("bg-gray-500"),
+		),
+		h.GetPartial(partials.SamplePartial),
+	)
+}

todo-list/pages/tasks.go

@@ -0,0 +1,26 @@
+package pages
+
+import (
+	"todolist/pages/base"
+	"todolist/partials/task"
+
+	"github.com/maddalax/htmgo/framework/h"
+)
+
+func TaskListPage(ctx *h.RequestContext) *h.Page {
+
+	title := h.Div(
+		h.H1(h.Class("text-7xl font-extralight text-rose-500 tracking-wide"), h.Text("todos")),
+	)
+
+	return h.NewPage(base.RootPage(
+		h.Div(
+			h.Class("bg-neutral-100 min-h-screen"),
+			h.Div(
+				h.Class("flex flex-col gap-6 p-4 items-center max-w-xl mx-auto pb-12"),
+				title,
+				task.Card(ctx),
+			),
+		),
+	))
+}

todo-list/partials/index.go

@@ -0,0 +1,17 @@
+package partials
+
+import (
+	"github.com/maddalax/htmgo/framework/h"
+)
+
+func SamplePartial(ctx *h.RequestContext) *h.Partial {
+	return h.NewPartial(h.Div(h.P(h.Text(" asdasasds"))))
+}
+
+func NewPartial(ctx *h.RequestContext) *h.Partial {
+	return h.NewPartial(h.Div(h.P(h.Text("This sadsl."))))
+}
+
+func NewPartial2(ctx *h.RequestContext) *h.Partial {
+	return h.NewPartial(h.Div(h.P(h.Text("This sasdsadasdwl."))))
+}

todo-list/partials/load/generated.go

@@ -0,0 +1,62 @@
+// Package partials THIS FILE IS GENERATED. DO NOT EDIT.
+package load
+
+import "github.com/maddalax/htmgo/framework/h"
+import "github.com/labstack/echo/v4"
+import "todolist/partials"
+import "todolist/partials/task"
+
+func GetPartialFromContext(ctx echo.Context) *h.Partial {
+	path := ctx.Request().URL.Path
+	if path == "SamplePartial" || path == "/todolist/partials.SamplePartial" {
+		cc := ctx.(*h.RequestContext)
+		return partials.SamplePartial(cc)
+	}
+	if path == "NewPartial" || path == "/todolist/partials.NewPartial" {
+		cc := ctx.(*h.RequestContext)
+		return partials.NewPartial(cc)
+	}
+	if path == "NewPartial2" || path == "/todolist/partials.NewPartial2" {
+		cc := ctx.(*h.RequestContext)
+		return partials.NewPartial2(cc)
+	}
+	if path == "UpdateName" || path == "/todolist/partials/task.UpdateName" {
+		cc := ctx.(*h.RequestContext)
+		return task.UpdateName(cc)
+	}
+	if path == "EditNameForm" || path == "/todolist/partials/task.EditNameForm" {
+		cc := ctx.(*h.RequestContext)
+		return task.EditNameForm(cc)
+	}
+	if path == "ToggleCompleted" || path == "/todolist/partials/task.ToggleCompleted" {
+		cc := ctx.(*h.RequestContext)
+		return task.ToggleCompleted(cc)
+	}
+	if path == "CompleteAll" || path == "/todolist/partials/task.CompleteAll" {
+		cc := ctx.(*h.RequestContext)
+		return task.CompleteAll(cc)
+	}
+	if path == "ClearCompleted" || path == "/todolist/partials/task.ClearCompleted" {
+		cc := ctx.(*h.RequestContext)
+		return task.ClearCompleted(cc)
+	}
+	if path == "Create" || path == "/todolist/partials/task.Create" {
+		cc := ctx.(*h.RequestContext)
+		return task.Create(cc)
+	}
+	if path == "ChangeTab" || path == "/todolist/partials/task.ChangeTab" {
+		cc := ctx.(*h.RequestContext)
+		return task.ChangeTab(cc)
+	}
+	return nil
+}
+
+func RegisterPartials(f *echo.Echo) {
+	f.Any("todolist/partials*", func(ctx echo.Context) error {
+		partial := GetPartialFromContext(ctx)
+		if partial == nil {
+			return ctx.NoContent(404)
+		}
+		return h.PartialView(ctx, partial)
+	})
+}

todo-list/partials/task/task.go

@@ -0,0 +1,315 @@
+package task
+
+import (
+	"fmt"
+	"github.com/google/uuid"
+	"github.com/maddalax/htmgo/framework/h"
+	"todolist/ent"
+	"todolist/internal/tasks"
+)
+
+type Tab = string
+
+const (
+	TabAll      Tab = "All"
+	TabActive   Tab = "Active"
+	TabComplete Tab = "Complete"
+)
+
+func getActiveTab(ctx *h.RequestContext) Tab {
+	if tab := h.GetQueryParam(ctx, "tab"); tab != "" {
+		return tab
+	}
+	return TabAll
+}
+
+func Card(ctx *h.RequestContext) h.Renderable {
+	service := tasks.NewService(ctx.ServiceLocator())
+	list, _ := service.List()
+
+	return h.Div(
+		h.Id("task-card"),
+		h.Class("bg-white w-full rounded shadow-md"),
+		CardBody(list, getActiveTab(ctx)),
+	)
+}
+
+func CardBody(list []*ent.Task, tab Tab) h.Renderable {
+	return h.Div(
+		h.Id("tasks-card-body"),
+		Input(list),
+		List(list, tab),
+		Footer(list, tab),
+	)
+}
+
+func Input(list []*ent.Task) h.Renderable {
+	return h.Div(
+		h.Id("task-card-input"),
+		h.Class("border border-b-slate-100 relative"),
+		h.Input(
+			"text",
+			h.Attribute("autocomplete", "off"),
+			h.Attribute("autofocus", "true"),
+			h.Attribute("name", "name"),
+			h.Class("pl-12 text-xl p-4 w-full outline-none focus:outline-2 focus:outline-rose-400"),
+			h.Placeholder("What needs to be done?"),
+			h.Post(h.GetPartialPath(Create)),
+			h.Trigger("keyup[keyCode==13]"),
+		),
+		CompleteAllIcon(list),
+	)
+}
+
+func CompleteAllIcon(list []*ent.Task) h.Renderable {
+	notCompletedCount := len(h.Filter(list, func(item *ent.Task) bool {
+		return item.CompletedAt == nil
+	}))
+
+	return h.Div(
+		h.ClassX("absolute top-0 left-0 p-4 rotate-90 text-2xl cursor-pointer", map[string]bool{
+			"text-slate-400": notCompletedCount > 0,
+		}), h.Text("❯"),
+		h.PostPartialOnClickQs(CompleteAll, h.Ternary(notCompletedCount > 0, "complete=true", "complete=false")),
+	)
+}
+
+func Footer(list []*ent.Task, activeTab Tab) h.Renderable {
+
+	notCompletedCount := len(h.Filter(list, func(item *ent.Task) bool {
+		return item.CompletedAt == nil
+	}))
+
+	tabs := []Tab{TabAll, TabActive, TabComplete}
+
+	return h.Div(
+		h.Id("task-card-footer"),
+		h.Class("flex items-center justify-between p-4 border-t border-b-slate-100"),
+		h.Div(
+			h.TextF("%d items left", notCompletedCount),
+		),
+		h.Div(
+			h.Class("flex items-center gap-4"),
+			h.List(tabs, func(tab Tab, index int) h.Renderable {
+				return h.P(
+					h.PostOnClick(h.GetPartialPathWithQs(ChangeTab, "tab="+tab)),
+					h.ClassX("cursor-pointer px-2 py-1 rounded", map[string]bool{
+						"border border-rose-600": activeTab == tab,
+					}),
+					h.Text(tab),
+				)
+			}),
+		),
+		h.Div(
+			h.PostPartialOnClick(ClearCompleted),
+			h.ClassX("flex gap-2 cursor-pointer", map[string]bool{
+				"opacity-0": notCompletedCount == len(list),
+			}),
+			h.Text("Clear completed"),
+		),
+	)
+}
+
+func List(list []*ent.Task, tab Tab) h.Renderable {
+	return h.Div(
+		h.Id("task-card-list"),
+		h.Class("bg-white w-full"),
+		h.Div(
+			h.List(list, func(item *ent.Task, index int) h.Renderable {
+				if tab == TabActive && item.CompletedAt != nil {
+					return h.Empty()
+				}
+				if tab == TabComplete && item.CompletedAt == nil {
+					return h.Empty()
+				}
+				return Task(item, false)
+			}),
+		),
+	)
+}
+
+func Task(task *ent.Task, editing bool) h.Renderable {
+	return h.Div(
+		h.Id(fmt.Sprintf("task-%s", task.ID.String())),
+		h.ClassX("h-[80px] max-h-[80px] max-w-2xl flex items-center p-4 gap-4 cursor-pointer", map[string]bool{
+			"border border-b-slate-100": !editing,
+		}),
+		CompleteIcon(task),
+		h.IfElse(editing,
+			h.Div(
+				h.Class("flex-1 h-full"),
+				h.Form(
+					h.Class("h-full"),
+					h.Input("text",
+						h.Attribute("name", "task"),
+						h.Attribute("value", task.ID.String()),
+						h.Class("hidden"),
+					),
+					h.Input(
+						"text",
+						h.Post(h.GetPartialPath(UpdateName)),
+						h.Trigger("blur, keyup[keyCode==13]"),
+						h.Attribute("autocomplete", "off"),
+						h.Attribute("autofocus", "true"),
+						h.Attribute("name", "name"),
+						h.Class("pl-1 h-full w-full text-xl outline-none outline-2 outline-rose-300"),
+						h.Attribute("value", task.Name),
+					),
+				),
+			),
+			h.P(
+				h.Trigger("dblclick"),
+				h.GetPartialWithQs(EditNameForm, "id="+task.ID.String()),
+				h.ClassX("text-xl break-all text-wrap truncate", map[string]bool{
+					"line-through text-slate-400": task.CompletedAt != nil,
+				}),
+				h.Text(task.Name),
+			)),
+	)
+}
+
+func CompleteIcon(task *ent.Task) h.Renderable {
+	return h.Div(
+		h.Trigger("click"),
+		h.Post(h.GetPartialPathWithQs(ToggleCompleted, "id="+task.ID.String())),
+		h.Class("flex items-center justify-center cursor-pointer"),
+		h.Div(
+			h.ClassX("w-10 h-10 border rounded-full flex items-center justify-center", map[string]bool{
+				"border-green-500": task.CompletedAt != nil,
+				"border-slate-400": task.CompletedAt == nil,
+			}),
+			h.If(task.CompletedAt != nil, h.Raw(`
+				<svg class="w-6 h-6 text-green-500" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
+      			<path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7"></path>
+    			</svg>
+			`)),
+		),
+	)
+}
+
+func UpdateName(ctx *h.RequestContext) *h.Partial {
+	id, err := uuid.Parse(ctx.FormValue("task"))
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("invalid id")))
+	}
+
+	name := ctx.FormValue("name")
+	if name == "" {
+		return h.NewPartial(h.Div(h.Text("name is required")))
+	}
+
+	service := tasks.NewService(ctx.ServiceLocator())
+	task, err := service.Get(id)
+
+	if task == nil {
+		return h.NewPartial(h.Div(h.Text("task not found")))
+	}
+
+	task, err = service.SetName(task.ID, name)
+
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("failed to update")))
+	}
+
+	return h.NewPartial(h.OobSwap(ctx, Task(task, false)))
+}
+
+func EditNameForm(ctx *h.RequestContext) *h.Partial {
+	id, err := uuid.Parse(ctx.QueryParam("id"))
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("invalid id")))
+	}
+
+	service := tasks.NewService(ctx.ServiceLocator())
+	task, err := service.Get(id)
+
+	if task == nil {
+		return h.NewPartial(h.Div(h.Text("task not found")))
+	}
+
+	return h.NewPartial(
+		h.OobSwap(ctx, Task(task, true)),
+	)
+}
+
+func ToggleCompleted(ctx *h.RequestContext) *h.Partial {
+	id, err := uuid.Parse(ctx.QueryParam("id"))
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("invalid id")))
+	}
+
+	service := tasks.NewService(ctx.ServiceLocator())
+	task, err := service.Get(id)
+
+	if task == nil {
+		return h.NewPartial(h.Div(h.Text("task not found")))
+	}
+
+	task, err = service.SetCompleted(task.ID, h.
+		Ternary(task.CompletedAt == nil, true, false))
+
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("failed to update")))
+	}
+
+	list, _ := service.List()
+
+	return h.NewPartial(h.Fragment(
+		h.OobSwap(ctx, List(list, getActiveTab(ctx))),
+		h.OobSwap(ctx, Footer(list, getActiveTab(ctx))),
+		h.OobSwap(ctx, CompleteAllIcon(list)),
+	))
+}
+
+func CompleteAll(ctx *h.RequestContext) *h.Partial {
+	service := tasks.NewService(ctx.ServiceLocator())
+
+	service.SetAllCompleted(ctx.QueryParam("complete") == "true")
+
+	list, _ := service.List()
+
+	return h.NewPartial(h.OobSwap(ctx, CardBody(list, getActiveTab(ctx))))
+}
+
+func ClearCompleted(ctx *h.RequestContext) *h.Partial {
+	service := tasks.NewService(ctx.ServiceLocator())
+	_ = service.ClearCompleted()
+
+	list, _ := service.List()
+
+	return h.NewPartial(h.OobSwap(ctx, CardBody(list, getActiveTab(ctx))))
+}
+
+func Create(ctx *h.RequestContext) *h.Partial {
+	name := ctx.FormValue("name")
+	if name == "" {
+		return h.NewPartial(h.Div(h.Text("name is required")))
+	}
+
+	service := tasks.NewService(ctx.ServiceLocator())
+	_, err := service.Create(tasks.CreateRequest{
+		Name: name,
+	})
+
+	if err != nil {
+		return h.NewPartial(h.Div(h.Text("failed to create")))
+	}
+
+	list, _ := service.List()
+
+	return h.NewPartial(h.Fragment(h.OobSwap(ctx, CardBody(list, getActiveTab(ctx)))))
+}
+
+func ChangeTab(ctx *h.RequestContext) *h.Partial {
+	service := tasks.NewService(ctx.ServiceLocator())
+	list, _ := service.List()
+
+	tab := ctx.QueryParam("tab")
+
+	return h.NewPartialWithHeaders(&h.Headers{"hx-push-url": fmt.Sprintf("/tasks?tab=%s", tab)},
+		h.Fragment(
+			h.OobSwap(ctx, List(list, tab)),
+			h.OobSwap(ctx, Footer(list, tab)),
+		),
+	)
+}