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authorAnssi Kääriäinen <akaariai@gmail.com>2014-01-20 05:02:29 +0200
committerAnssi Kääriäinen <akaariai@gmail.com>2014-01-20 10:52:58 +0200
commit1c360dbbf56b76e1df7c945458ae2987306fcfcd (patch)
tree346419841a3d5f98932d8d1bd1ecdd94edf0b39c
parentb86321e9a42652909d9c3373f3b97fcc9ed2c290 (diff)
Use date_extract_sql() for DateFields
Refs #21821
-rw-r--r--django/db/models/lookups.py11
1 files changed, 7 insertions, 4 deletions
diff --git a/django/db/models/lookups.py b/django/db/models/lookups.py
index d73418b5af..ce6d157f82 100644
--- a/django/db/models/lookups.py
+++ b/django/db/models/lookups.py
@@ -281,12 +281,15 @@ default_lookups['range'] = Range
class DateLookup(BuiltinLookup):
-
def process_lhs(self, qn, connection, lhs=None):
+ from django.db.models import DateTimeField
lhs, params = super(DateLookup, self).process_lhs(qn, connection, lhs)
- tzname = timezone.get_current_timezone_name() if settings.USE_TZ else None
- sql, tz_params = connection.ops.datetime_extract_sql(self.extract_type, lhs, tzname)
- return connection.ops.lookup_cast(self.lookup_name) % sql, tz_params
+ if isinstance(self.lhs.output_type, DateTimeField):
+ tzname = timezone.get_current_timezone_name() if settings.USE_TZ else None
+ sql, tz_params = connection.ops.datetime_extract_sql(self.extract_type, lhs, tzname)
+ return connection.ops.lookup_cast(self.lookup_name) % sql, tz_params
+ else:
+ return connection.ops.date_extract_sql(self.lookup_name, lhs), []
def get_rhs_op(self, connection, rhs):
return '= %s' % rhs