48 lines
1.9 KiB
Clojure
48 lines
1.9 KiB
Clojure
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;; copyright (c) 2019 Sean Corfield, all rights reserved
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(ns next.jdbc.date-time
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"Optional namespace that extends `next.jdbc.prepare/SettableParameter`
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to various date/time types so that they will all be treated as SQL
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timestamps (which also supports date and time column types).
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Some databases support a wide variety of date/time type conversions.
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Other databases need a bit of help. You should only require this
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namespace if you database does not support these conversions automatically.
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* H2 and SQLite support conversion of Java Time (`Instant`, `LocalDate`,
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`LocalDateTime`) out of the box,
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* Nearly all databases support conversion of `java.util.date` out of
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the box -- except PostgreSQL apparently!
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Types supported:
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* `java.time.Instant`
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* `java.time.LocalDate`
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* `java.time.LocalDateTime`
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* `java.util.Date` -- mainly for PostgreSQL
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PostgreSQL does not seem able to convert `java.util.Date` to a SQL
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timestamp by default (every other database can!) so you'll probably
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need to require this namespace, even if you don't use Java Time."
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(:require [next.jdbc.prepare :as p])
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(:import (java.sql PreparedStatement Timestamp)
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(java.time Instant LocalDate LocalDateTime)))
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(set! *warn-on-reflection* true)
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(extend-protocol p/SettableParameter
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;; Java Time type conversion
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java.time.Instant
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(set-parameter [^java.time.Instant v ^PreparedStatement s ^long i]
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(.setTimestamp s i (Timestamp/from v)))
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java.time.LocalDate
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(set-parameter [^java.time.LocalDate v ^PreparedStatement s ^long i]
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(.setTimestamp s i (Timestamp/valueOf (.atStartOfDay v))))
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java.time.LocalDateTime
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(set-parameter [^java.time.LocalDateTime v ^PreparedStatement s ^long i]
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(.setTimestamp s i (Timestamp/valueOf v)))
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;; this is just to help PostgreSQL:
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java.util.Date
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(set-parameter [^java.util.Date v ^PreparedStatement s ^long i]
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(.setTimestamp s i (Timestamp/from (.toInstant v)))))
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