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Code Issues 32 Releases Wiki Activity

Fixed #34701 -- Added support for NULLS [NOT] DISTINCT on PostgreSQL 15+.

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This commit is contained in:
Simon Charette
2023-07-07 19:43:51 -04:00
committed by Mariusz Felisiak
parent 98cfb90182
commit 595a2abb58
13 changed files with 295 additions and 9 deletions
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58
tests/constraints/tests.py
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@@ -503,6 +503,27 @@ class UniqueConstraintTests(TestCase):
self.assertEqual(constraint, mock.ANY)
self.assertNotEqual(constraint, another_constraint)
def test_eq_with_nulls_distinct(self):
constraint_1 = models.UniqueConstraint(
Lower("title"),
nulls_distinct=False,
name="book_func_nulls_distinct_uq",
)
constraint_2 = models.UniqueConstraint(
Lower("title"),
nulls_distinct=True,
name="book_func_nulls_distinct_uq",
)
constraint_3 = models.UniqueConstraint(
Lower("title"),
name="book_func_nulls_distinct_uq",
)
self.assertEqual(constraint_1, constraint_1)
self.assertEqual(constraint_1, mock.ANY)
self.assertNotEqual(constraint_1, constraint_2)
self.assertNotEqual(constraint_1, constraint_3)
self.assertNotEqual(constraint_2, constraint_3)
def test_repr(self):
fields = ["foo", "bar"]
name = "unique_fields"
@@ -560,6 +581,18 @@ class UniqueConstraintTests(TestCase):
"opclasses=['text_pattern_ops', 'varchar_pattern_ops']>",
)
def test_repr_with_nulls_distinct(self):
constraint = models.UniqueConstraint(
fields=["foo", "bar"],
name="nulls_distinct_fields",
nulls_distinct=False,
)
self.assertEqual(
repr(constraint),
"<UniqueConstraint: fields=('foo', 'bar') name='nulls_distinct_fields' "
"nulls_distinct=False>",
)
def test_repr_with_expressions(self):
constraint = models.UniqueConstraint(
Lower("title"),
@@ -679,6 +712,24 @@ class UniqueConstraintTests(TestCase):
},
)
def test_deconstruction_with_nulls_distinct(self):
fields = ["foo", "bar"]
name = "unique_fields"
constraint = models.UniqueConstraint(
fields=fields, name=name, nulls_distinct=True
)
path, args, kwargs = constraint.deconstruct()
self.assertEqual(path, "django.db.models.UniqueConstraint")
self.assertEqual(args, ())
self.assertEqual(
kwargs,
{
"fields": tuple(fields),
"name": name,
"nulls_distinct": True,
},
)
def test_deconstruction_with_expressions(self):
name = "unique_fields"
constraint = models.UniqueConstraint(Lower("title"), name=name)
@@ -1029,6 +1080,13 @@ class UniqueConstraintTests(TestCase):
opclasses="jsonb_path_ops",
)
def test_invalid_nulls_distinct_argument(self):
msg = "UniqueConstraint.nulls_distinct must be a bool."
with self.assertRaisesMessage(ValueError, msg):
models.UniqueConstraint(
name="uniq_opclasses", fields=["field"], nulls_distinct="NULLS DISTINCT"
)
def test_opclasses_and_fields_same_length(self):
msg = (
"UniqueConstraint.fields and UniqueConstraint.opclasses must have "