def test_referencing_to_swapped_model(self):
class Replacement(models.Model):
pass
class SwappedModel(models.Model):
class Meta:
swappable = 'TEST_SWAPPED_MODEL'
class Model(models.Model):
explicit_fk = models.ForeignKey(SwappedModel,
related_name='explicit_fk')
implicit_fk = models.ForeignKey(
'invalid_models_tests.SwappedModel',
related_name='implicit_fk')
explicit_m2m = models.ManyToManyField(SwappedModel,
related_name='explicit_m2m')
implicit_m2m = models.ManyToManyField(
'invalid_models_tests.SwappedModel',
related_name='implicit_m2m')
fields = [
Model._meta.get_field('explicit_fk'),
Model._meta.get_field('implicit_fk'),
Model._meta.get_field('explicit_m2m'),
Model._meta.get_field('implicit_m2m'),
]
expected_error = Error(
("Field defines a relation with the model "
"'invalid_models_tests.SwappedModel', which has been swapped out."
),
hint=
"Update the relation to point at 'settings.TEST_SWAPPED_MODEL'.",
id='fields.E301',
)
for field in fields:
expected_error.obj = field
errors = field.check(from_model=Model)
self.assertEqual(errors, [expected_error])
def test_m2m_to_abstract_model(self):
class AbstractModel(models.Model):
class Meta:
abstract = True
class Model(models.Model):
rel_string_m2m = models.ManyToManyField('AbstractModel')
rel_class_m2m = models.ManyToManyField(AbstractModel)
fields = [
Model._meta.get_field('rel_string_m2m'),
Model._meta.get_field('rel_class_m2m'),
]
expected_error = Error(
"Field defines a relation with model 'AbstractModel', "
"which is either not installed, or is abstract.",
id='fields.E300',
)
for field in fields:
expected_error.obj = field
errors = field.check(from_model=Model)
self.assertEqual(errors, [expected_error])
def test_m2m_to_abstract_model(self):
class AbstractModel(models.Model):
class Meta:
abstract = True
class Model(models.Model):
rel_string_m2m = models.ManyToManyField('AbstractModel')
rel_class_m2m = models.ManyToManyField(AbstractModel)
fields = [
Model._meta.get_field('rel_string_m2m'),
Model._meta.get_field('rel_class_m2m'),
]
expected_error = Error(
"Field defines a relation with model 'AbstractModel', "
"which is either not installed, or is abstract.",
id='fields.E300',
)
for field in fields:
expected_error.obj = field
errors = field.check(from_model=Model)
self.assertEqual(errors, [expected_error])
def test_referencing_to_swapped_model(self):
class Replacement(models.Model):
pass
class SwappedModel(models.Model):
class Meta:
swappable = 'TEST_SWAPPED_MODEL'
class Model(models.Model):
explicit_fk = models.ForeignKey(SwappedModel,
related_name='explicit_fk')
implicit_fk = models.ForeignKey('invalid_models_tests.SwappedModel',
related_name='implicit_fk')
explicit_m2m = models.ManyToManyField(SwappedModel,
related_name='explicit_m2m')
implicit_m2m = models.ManyToManyField(
'invalid_models_tests.SwappedModel',
related_name='implicit_m2m')
fields = [
Model._meta.get_field('explicit_fk'),
Model._meta.get_field('implicit_fk'),
Model._meta.get_field('explicit_m2m'),
Model._meta.get_field('implicit_m2m'),
]
expected_error = Error(
("Field defines a relation with the model "
"'invalid_models_tests.SwappedModel', which has been swapped out."),
hint="Update the relation to point at 'settings.TEST_SWAPPED_MODEL'.",
id='fields.E301',
)
for field in fields:
expected_error.obj = field
errors = field.check(from_model=Model)
self.assertEqual(errors, [expected_error])
