django1/django/contrib/postgres/functions.py

from django.db.models import DateTimeField, Func, UUIDField


class RandomUUID(Func):
    template = 'GEN_RANDOM_UUID()'
    output_field = UUIDField()


class TransactionNow(Func):
    template = 'CURRENT_TIMESTAMP'
    output_field = DateTimeField()
Fixed #27996 -- Added RandomUUID function and CryptoExtension to contrib.postgres. 2017-03-30 05:52:42 +08:00			`from django.db.models import DateTimeField, Func, UUIDField`


			`class RandomUUID(Func):`
			`template = 'GEN_RANDOM_UUID()'`
Fixed #28492 -- Defined default output_field of expressions at the class level. This wasn't possible when settings were accessed during Field initialization time as our test suite setup script was triggering imports of expressions before settings were configured. 2017-08-09 01:31:59 +08:00			`output_field = UUIDField()`
Fixed #24894 -- Added contrib.postgres.functions.TransactionNow 2015-06-02 01:00:34 +08:00

			`class TransactionNow(Func):`
			`template = 'CURRENT_TIMESTAMP'`
Fixed #28492 -- Defined default output_field of expressions at the class level. This wasn't possible when settings were accessed during Field initialization time as our test suite setup script was triggering imports of expressions before settings were configured. 2017-08-09 01:31:59 +08:00			`output_field = DateTimeField()`