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Code Issues 32 Releases Wiki Activity

Refs #29928 -- Added supports_pragma_foreign_key_check SQLite feature flag.

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Simon Charette 2018-12-21 18:26:30 -05:00 committed by Tim Graham
parent f3eb1cfb58
commit 6b9bd0933e
2 changed files with 3 additions and 2 deletions
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2
django/db/backends/sqlite3/base.py
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@ -267,7 +267,7 @@ class DatabaseWrapper(BaseDatabaseWrapper):
determine if rows with invalid references were entered while constraint determine if rows with invalid references were entered while constraint
checks were off. checks were off.
""" """
if Database.sqlite_version_info >= (3, 20, 0): if self.features.supports_pragma_foreign_key_check:
with self.cursor() as cursor: with self.cursor() as cursor:
if table_names is None: if table_names is None:
violations = self.cursor().execute('PRAGMA foreign_key_check').fetchall() violations = self.cursor().execute('PRAGMA foreign_key_check').fetchall()

3
django/db/backends/sqlite3/features.py
View File

@ -40,7 +40,8 @@ class DatabaseFeatures(BaseDatabaseFeatures):
supports_parentheses_in_compound = False supports_parentheses_in_compound = False
# Deferred constraint checks can be emulated on SQLite < 3.20 but not in a # Deferred constraint checks can be emulated on SQLite < 3.20 but not in a
# reasonably performant way. # reasonably performant way.
can_defer_constraint_checks = Database.sqlite_version_info >= (3, 20, 0) supports_pragma_foreign_key_check = Database.sqlite_version_info >= (3, 20, 0)
can_defer_constraint_checks = supports_pragma_foreign_key_check
@cached_property @cached_property
def supports_stddev(self): def supports_stddev(self):