def _check_mysql_version(self):
errors = []
any_conn_works = False
for _alias, conn in mysql_connections():
if (hasattr(conn, "mysql_version")
and not connection_is_mariadb(conn)
and conn.mysql_version >= (5, 7)):
any_conn_works = True
if not any_conn_works:
errors.append(
checks.Error(
"MySQL 5.7+ is required to use JSONField",
hint="At least one of your DB connections should be to "
"MySQL 5.7+",
obj=self,
id="django_mysql.E016",
))
return errors
def test_check_unique_sf_field_names(self):
class MyModel(hc_models.HerokuConnectModel):
sf_object_name = "My_Object__c"
date1 = hc_models.DateTime(sf_field_name="Date1__c",
db_column="date1")
date2 = hc_models.DateTime(sf_field_name="Date1__c",
db_column="date2")
class Meta:
app_label = "test"
abstract = True
errors = MyModel.check()
assert errors == [
checks.Error(
"test.MyModel has duplicate Salesforce field names.",
hint=["Date1__c"],
id="heroku_connect.E003",
)
]
def test_content_type_field_pointing_to_wrong_model(self):
class Model(models.Model):
content_type = models.ForeignKey('self', models.CASCADE) # should point to ContentType
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey(
'content_type', 'object_id')
errors = Model.content_object.check()
expected = [
checks.Error(
"'Model.content_type' is not a ForeignKey to 'contenttypes.ContentType'.",
hint=(
"GenericForeignKeys must use a ForeignKey to "
"'contenttypes.ContentType' as the 'content_type' field."
),
obj=Model.content_object,
id='contenttypes.E004',
)
]
self.assertEqual(errors, expected)
def _check_mariadb_version(self):
errors = []
any_conn_works = False
conn_names = ['default'] + list(set(connections) - {'default'})
for db in conn_names:
conn = connections[db]
if (hasattr(conn, 'mysql_version') and connection_is_mariadb(conn)
and conn.mysql_version >= (10, 0, 1)):
any_conn_works = True
if not any_conn_works:
errors.append(
checks.Error(
'MariaDB 10.0.1+ is required to use DynamicField',
hint='At least one of your DB connections should be to '
'MariaDB 10.0.1+',
obj=self,
id='django_mysql.E013'))
return errors
def test_generic_inline_model_admin_bad_fk_field(self):
"A GenericInlineModelAdmin raises problems if the ct_fk_field points to a non-existent field."
class InfluenceInline(GenericStackedInline):
model = Influence
ct_fk_field = 'nonexistent'
class SongAdmin(admin.ModelAdmin):
inlines = [InfluenceInline]
errors = SongAdmin.check(model=Song)
expected = [
checks.Error(
"'ct_fk_field' references 'nonexistent', which is not a field on 'admin_checks.Influence'.",
hint=None,
obj=InfluenceInline,
id='admin.E303',
)
]
self.assertEqual(errors, expected)
def test_required_fields_is_list(self):
"""REQUIRED_FIELDS should be a list."""
class CustomUserNonListRequiredFields(AbstractBaseUser):
username = models.CharField(max_length=30, unique=True)
date_of_birth = models.DateField()
USERNAME_FIELD = "username"
REQUIRED_FIELDS = "date_of_birth"
errors = checks.run_checks(app_configs=self.apps.get_app_configs())
self.assertEqual(
errors,
[
checks.Error(
"'REQUIRED_FIELDS' must be a list or tuple.",
obj=CustomUserNonListRequiredFields,
id="auth.E001",
),
],
)
def _check_mysql_version(self):
errors = []
any_conn_works = False
for alias, conn in mysql_connections():
if (hasattr(conn, 'mysql_version')
and not connection_is_mariadb(conn)
and conn.mysql_version >= (5, 7)):
any_conn_works = True
if not any_conn_works:
errors.append(
checks.Error(
'MySQL 5.7+ is required to use JSONField',
hint='At least one of your DB connections should be to '
'MySQL 5.7+',
obj=self,
id='django_mysql.E016',
), )
return errors
def test_missing_generic_foreign_key(self):
class TaggedItem(models.Model):
content_type = models.ForeignKey(ContentType, models.CASCADE)
object_id = models.PositiveIntegerField()
class Bookmark(models.Model):
tags = GenericRelation("TaggedItem")
self.assertEqual(
Bookmark.tags.field.check(),
[
checks.Error(
"The GenericRelation defines a relation with the model "
"'contenttypes_tests.TaggedItem', but that model does not have a "
"GenericForeignKey.",
obj=Bookmark.tags.field,
id="contenttypes.E004",
)
],
)
def _check_object_id_field(self):
target = self.rel.to
if isinstance(target, ModelBase):
opts = target._meta
try:
opts.get_field(self.object_id_field_name)
except FieldDoesNotExist:
return [
checks.Error(
'The field refers to %s.%s field which is missing.' %
(opts.object_name, self.object_id_field_name),
hint=None,
obj=self,
id='contenttypes.E003',
)
]
else:
return []
else:
return []
def test_missing_generic_foreign_key(self):
class TaggedItem(models.Model):
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
class Bookmark(models.Model):
tags = GenericRelation('TaggedItem')
errors = Bookmark.tags.field.check()
expected = [
checks.Error(
("The GenericRelation defines a relation with the model "
"'contenttypes_tests.TaggedItem', but that model does not have a "
"GenericForeignKey."),
hint=None,
obj=Bookmark.tags.field,
id='contenttypes.E004',
)
]
self.assertEqual(errors, expected)
def test_generic_inline_model_admin_non_generic_model(self):
"""
A model without a GenericForeignKey raises problems if it's included
in a GenericInlineModelAdmin definition.
"""
class BookInline(GenericStackedInline):
model = Book
class SongAdmin(admin.ModelAdmin):
inlines = [BookInline]
errors = SongAdmin(Song, AdminSite()).check()
expected = [
checks.Error(
"'admin_checks.Book' has no GenericForeignKey.",
obj=BookInline,
id='admin.E301',
)
]
self.assertEqual(errors, expected)
def test_new_fields(self):
class NoNewFields(Person):
newfield = models.BooleanField()
class Meta:
proxy = True
# don't register this model in the app_cache for the current app,
# otherwise the check fails when other tests are being run.
app_label = 'no_such_app'
errors = NoNewFields.check()
expected = [
checks.Error(
"Proxy model 'NoNewFields' contains model fields.",
hint=None,
obj=None,
id='models.E017',
)
]
self.assertEqual(errors, expected)
def test_CommaSeparatedIntegerField_deprecated(self):
class CommaSeparatedIntegerModel(models.Model):
csi = models.CommaSeparatedIntegerField(max_length=64)
model = CommaSeparatedIntegerModel()
self.assertEqual(
model.check(),
[
checks.Error(
"CommaSeparatedIntegerField is removed except for support in "
"historical migrations.",
hint=
("Use "
"CharField(validators=[validate_comma_separated_integer_list]) "
"instead."),
obj=CommaSeparatedIntegerModel._meta.get_field("csi"),
id="fields.E901",
)
],
)
def test_user_specified_details(self):
class MyField(models.Field):
system_check_removed_details = {
'msg': 'Support for this field is gone.',
'hint': 'Use something else.',
'id': 'fields.E999',
}
class Model(models.Model):
name = MyField()
model = Model()
self.assertEqual(model.check(), [
checks.Error(
msg='Support for this field is gone.',
hint='Use something else.',
obj=Model._meta.get_field('name'),
id='fields.E999',
)
])
def check_subscriber_key_length(app_configs=None, **kwargs):
"""
Check that DJSTRIPE_SUBSCRIBER_CUSTOMER_KEY fits in metadata.
Docs: https://stripe.com/docs/api#metadata
"""
from . import settings as djstripe_settings
messages = []
key = djstripe_settings.SUBSCRIBER_CUSTOMER_KEY
key_size = len(str(key))
if key and key_size > 40:
messages.append(
checks.Error(
"DJSTRIPE_SUBSCRIBER_CUSTOMER_KEY must be no more than 40 characters long",
hint="Current value: %r (%i characters)" % (key, key_size),
id="djstripe.E001"))
return messages
def test_check_unique_sf_field_names(self):
class MyModel(hc_models.HerokuConnectModel):
sf_object_name = 'My_Object__c'
date1 = hc_models.DateTime(sf_field_name='Date1__c',
db_column='date1')
date2 = hc_models.DateTime(sf_field_name='Date1__c',
db_column='date2')
class Meta:
app_label = 'test'
abstract = True
errors = MyModel.check()
assert errors == [
checks.Error(
"test.MyModel has duplicate Salesforce field names.",
hint=['Date1__c'],
id='heroku_connect.E003',
)
]
def _check_default(self, **kwargs):
try:
default = self.get_default()
self.enum(default)
return []
except ValueError:
return [
checks.Error(
FieldErrors.E02.display.format(
cls=self.__class__.__name__,
default=default,
enum=self.enum,
),
obj=self,
id=FieldErrors.E02,
hint=_(
'Add an enum item with `{0!r}` as value, eg.: `UNDEFINED = {0!r}`, '
'or inform a valid default value.').format(default),
)
]
def test_verbose_name_max_length(self):
class Checked(models.Model):
class Meta:
verbose_name = (
"some ridiculously long verbose name that is out of control"
* 5)
errors = checks.run_checks(self.apps.get_app_configs())
self.assertEqual(
errors,
[
checks.Error(
"The verbose_name of model 'auth_tests.Checked' must be at most "
"244 characters for its builtin permission names to be at most 255 "
"characters.",
obj=Checked,
id="auth.E007",
),
],
)
def test_generic_inline_model_admin_non_gfk_fk_field(self):
"A GenericInlineModelAdmin raises problems if the ct_fk_field points to a field that isn't part of a GenericForeignKey"
class InfluenceInline(GenericStackedInline):
model = Influence
ct_fk_field = 'name'
class SongAdmin(admin.ModelAdmin):
inlines = [InfluenceInline]
errors = SongAdmin.check(model=Song)
expected = [
checks.Error(
"'admin_checks.Influence' has no GenericForeignKey using content type field 'content_type' and object ID field 'name'.",
hint=None,
obj=InfluenceInline,
id='admin.E304',
)
]
self.assertEqual(errors, expected)
def _check_supported(self, databases):
errors = []
for db in databases:
if not router.allow_migrate_model(db, self.model):
continue
connection = connections[db]
if (self.model._meta.required_db_vendor and
self.model._meta.required_db_vendor != connection.vendor):
continue
if not ('supports_json_field'
in self.model._meta.required_db_features
or connection.features.supports_json_field):
errors.append(
checks.Error(
'%s does not support JSONFields.' %
connection.display_name,
obj=self.model,
id='fields.E180',
))
return errors
def _check_exclude(self, obj):
""" Check that exclude is a sequence without duplicates. """
if obj.exclude is None: # default value is None
return []
elif not isinstance(obj.exclude, (list, tuple)):
return must_be('a list or tuple',
option='exclude',
obj=obj,
id='admin.E014')
elif len(obj.exclude) > len(set(obj.exclude)):
return [
checks.Error(
"The value of 'exclude' contains duplicate field(s).",
obj=obj.__class__,
id='admin.E015',
)
]
else:
return []
def test_invalid_content_type_field(self):
class Model(models.Model):
content_type = models.IntegerField() # should be ForeignKey
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey(
'content_type', 'object_id')
errors = Model.content_object.check()
expected = [
checks.Error(
"'Model.content_type' is not a ForeignKey.",
hint=(
"GenericForeignKeys must use a ForeignKey to "
"'contenttypes.ContentType' as the 'content_type' field."
),
obj=Model.content_object,
id='contenttypes.E003',
)
]
self.assertEqual(errors, expected)
def test_readonly_and_editable(self):
class SongAdmin(admin.ModelAdmin):
readonly_fields = ["original_release"]
list_display = ["pk", "original_release"]
list_editable = ["original_release"]
fieldsets = [
(None, {
"fields": ["title", "original_release"],
}),
]
errors = SongAdmin(Song, AdminSite()).check()
expected = [
checks.Error(
"The value of 'list_editable[0]' refers to 'original_release', "
"which is not editable through the admin.",
obj=SongAdmin,
id='admin.E125',
)
]
self.assertEqual(errors, expected)
def _check_model(cls):
errors = super()._check_model()
_will_check_abstract_method = cls.__dict__.get(
'_will_check_abstract_method', True)
if _will_check_abstract_method and not cls._meta.abstract:
model_functions = filter(
callable, map(lambda attr: getattr(cls, attr, None), dir(cls)))
abstract_functions = filter(
lambda func: getattr(func, '__isabstractmethod__', False),
model_functions)
for abstract_function in abstract_functions:
errors.append(
checks.Error(
"'%s' is abstracted but not implemented." %
(abstract_function.__name__),
obj=cls,
))
return errors
def _check_generic_foreign_key_existence(self):
target = self.remote_field.model
if isinstance(target, ModelBase):
fields = target._meta.private_fields
if any(
self._is_matching_generic_foreign_key(field)
for field in fields):
return []
else:
return [
checks.Error(
"The GenericRelation defines a relation with the model "
"'%s.%s', but that model does not have a GenericForeignKey."
% (target._meta.app_label, target._meta.object_name),
obj=self,
id='contenttypes.E004',
)
]
else:
return []
def test_username_not_in_required_fields(self, apps):
"""USERNAME_FIELD should not appear in REQUIRED_FIELDS."""
class CustomUserBadRequiredFields(AbstractBaseUser):
username = models.CharField(max_length=30, unique=True)
date_of_birth = models.DateField()
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['username', 'date_of_birth']
errors = checks.run_checks(apps.get_app_configs())
expected = [
checks.Error(
("The field named as the 'USERNAME_FIELD' for a custom user model "
"must not be included in 'REQUIRED_FIELDS'."),
hint=None,
obj=CustomUserBadRequiredFields,
id='auth.E002',
),
]
self.assertEqual(errors, expected)
def test_invalid_content_type_field(self):
class Model(models.Model):
content_type = models.IntegerField() # should be ForeignKey
object_id = models.PositiveIntegerField()
content_object = GenericForeignKey("content_type", "object_id")
self.assertEqual(
Model.content_object.check(),
[
checks.Error(
"'Model.content_type' is not a ForeignKey.",
hint=(
"GenericForeignKeys must use a ForeignKey to "
"'contenttypes.ContentType' as the 'content_type' field."
),
obj=Model.content_object,
id="contenttypes.E003",
)
],
)
def test_graceful_m2m_fail(self):
"""
Regression test for #12203/#12237 - Fail more gracefully when a M2M field that
specifies the 'through' option is included in the 'fields' or the 'fieldsets'
ModelAdmin options.
"""
class BookAdmin(admin.ModelAdmin):
fields = ['authors']
errors = BookAdmin.check(model=Book)
expected = [
checks.Error(
('"fields" cannot include the ManyToManyField "authors", '
'because "authors" manually specifies relationship model.'),
hint=None,
obj=BookAdmin,
id='admin.E013',
)
]
self.assertEqual(errors, expected)
def test_username_partially_unique(self):
class CustomUserPartiallyUnique(AbstractBaseUser):
username = models.CharField(max_length=30)
USERNAME_FIELD = "username"
class Meta:
constraints = [
UniqueConstraint(
fields=["username"],
name="partial_username_unique",
condition=Q(password__isnull=False),
),
]
errors = checks.run_checks(app_configs=self.apps.get_app_configs())
self.assertEqual(
errors,
[
checks.Error(
"'CustomUserPartiallyUnique.username' must be unique because "
"it is named as the 'USERNAME_FIELD'.",
obj=CustomUserPartiallyUnique,
id="auth.E003",
),
],
)
with self.settings(AUTHENTICATION_BACKENDS=["my.custom.backend"]):
errors = checks.run_checks(app_configs=self.apps.get_app_configs())
self.assertEqual(
errors,
[
checks.Warning(
"'CustomUserPartiallyUnique.username' is named as the "
"'USERNAME_FIELD', but it is not unique.",
hint=("Ensure that your authentication backend(s) can "
"handle non-unique usernames."),
obj=CustomUserPartiallyUnique,
id="auth.W004",
),
],
)
def test_cannot_include_through(self):
class FieldsetBookAdmin(admin.ModelAdmin):
fieldsets = (
('Header 1', {
'fields': ('name', )
}),
('Header 2', {
'fields': ('authors', )
}),
)
errors = FieldsetBookAdmin(Book, AdminSite()).check()
expected = [
checks.Error(
"The value of 'fieldsets[1][1][\"fields\"]' cannot include the ManyToManyField "
"'authors', because that field manually specifies a relationship model.",
obj=FieldsetBookAdmin,
id='admin.E013',
)
]
self.assertEqual(errors, expected)
