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Fixed #35275 -- Fixed Meta.constraints validation crash on UniqueConstraint with OpClass().

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This also introduces Expression.constraint_validation_compatible that
allows specifying that expression should be ignored during a constraint
validation.
This commit is contained in:
Mariusz Felisiak 2024-05-12 20:10:55 +02:00 • committed by Sarah Boyce
parent ceaf1e2848
commit f030236a86
8 changed files with 61 additions and 11 deletions
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10
tests/expressions/tests.py
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@ -1425,6 +1425,16 @@ class SimpleExpressionTests(SimpleTestCase):
hash(Expression(TestModel._meta.get_field("other_field"))),
)
def test_get_expression_for_validation_only_one_source_expression(self):
expression = Expression()
expression.constraint_validation_compatible = False
msg = (
"Expressions with constraint_validation_compatible set to False must have "
"only one source expression."
)
with self.assertRaisesMessage(ValueError, msg):
expression.get_expression_for_validation()
class ExpressionsNumericTests(TestCase):
@classmethod