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Fixed #36530 -- Extended fields.E347 to check for ManyToManyField involving CompositePrimaryKey on either side.

Thanks to Jacob Walls for the report.
This commit is contained in:
jkhall81
2025-07-28 08:59:07 -07:00
committed by nessita
parent e664c5afa9
commit 2013092b69
4 changed files with 68 additions and 53 deletions

View File

@@ -454,29 +454,19 @@ class RelativeFieldTests(SimpleTestCase):
"Parent", on_delete=models.CASCADE, related_name="child_string_set"
)
error = (
"Field defines a relation involving model 'Parent' which has a "
"CompositePrimaryKey and such relations are not supported."
)
field = Child._meta.get_field("rel_string_parent")
self.assertEqual(
field.check(),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
obj=field,
id="fields.E347",
),
],
[Error(error, obj=field, id="fields.E347")],
)
field = Child._meta.get_field("rel_class_parent")
self.assertEqual(
field.check(),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
obj=field,
id="fields.E347",
),
],
[Error(error, obj=field, id="fields.E347")],
)
def test_many_to_many_to_model_with_composite_primary_key(self):
@@ -493,29 +483,45 @@ class RelativeFieldTests(SimpleTestCase):
"Parent", related_name="child_string_set"
)
error = (
"Field defines a relation involving model 'Parent' which has a "
"CompositePrimaryKey and such relations are not supported."
)
field = Child._meta.get_field("rel_string_parent")
self.assertEqual(
field.check(from_model=Child),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
obj=field,
id="fields.E347",
),
],
[Error(error, obj=field, id="fields.E347")],
)
field = Child._meta.get_field("rel_class_parent")
self.assertEqual(
field.check(from_model=Child),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
obj=field,
id="fields.E347",
),
],
[Error(error, obj=field, id="fields.E347")],
)
def test_many_to_many_from_model_with_composite_primary_key(self):
class Parent(models.Model):
name = models.CharField(max_length=20)
class Meta:
app_label = "invalid_models_tests"
class Child(models.Model):
pk = models.CompositePrimaryKey("version", "name")
version = models.IntegerField()
name = models.CharField(max_length=20)
parents = models.ManyToManyField(Parent)
class Meta:
app_label = "invalid_models_tests"
error = (
"Field defines a relation involving model 'Child' which has a "
"CompositePrimaryKey and such relations are not supported."
)
field = Child._meta.get_field("parents")
self.assertEqual(
field.check(from_model=Child),
[Error(error, obj=field, id="fields.E347")],
)
def test_foreign_key_to_non_unique_field(self):
@@ -1038,8 +1044,8 @@ class RelativeFieldTests(SimpleTestCase):
field.check(),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
"Field defines a relation involving model 'Parent' which has a "
"CompositePrimaryKey and such relations are not supported.",
obj=field,
id="fields.E347",
),
@@ -1060,8 +1066,8 @@ class RelativeFieldTests(SimpleTestCase):
field.check(),
[
Error(
"Field defines a relation to the CompositePrimaryKey of model "
"'Parent' which is not supported.",
"Field defines a relation involving model 'Parent' which has a "
"CompositePrimaryKey and such relations are not supported.",
obj=field,
id="fields.E347",
),