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Implemented BaseDatabaseFeatures and changed all code to access it -- connection.features.foo instead of backend.foo

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@5974 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2007-08-20 02:20:33 +00:00
parent 4f82250512
commit 1a8f9b2b97
12 changed files with 69 additions and 91 deletions
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6
django/db/models/query.py
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@ -651,7 +651,7 @@ class DateQuerySet(QuerySet):
table_name = qn(self.model._meta.db_table)
field_name = qn(self._field.column)
if backend.allows_group_by_ordinal:
if connection.features.allows_group_by_ordinal:
group_by = '1'
else:
group_by = connection.ops.date_trunc_sql(self._kind, '%s.%s' % (table_name, field_name))
@ -663,7 +663,7 @@ class DateQuerySet(QuerySet):
cursor.execute(sql, params)
has_resolve_columns = hasattr(self, 'resolve_columns')
needs_datetime_string_cast = backend.needs_datetime_string_cast
needs_datetime_string_cast = connection.features.needs_datetime_string_cast
dates = []
# It would be better to use self._field here instead of DateTimeField(),
# but in Oracle that will result in a list of datetime.date instead of
@ -796,7 +796,7 @@ def get_where_clause(lookup_type, table_prefix, field_name, value, db_type):
else:
field_cast_sql = '%s%s'
field_sql = field_cast_sql % (table_prefix, field_name)
if lookup_type in ('iexact', 'icontains', 'istartswith', 'iendswith') and backend.needs_upper_for_iops:
if lookup_type in ('iexact', 'icontains', 'istartswith', 'iendswith') and connection.features.needs_upper_for_iops:
format = 'UPPER(%s) %s'
else:
format = '%s %s'