def _called_thru_default_qs(self, node):
"""Checks if an attribute is being accessed throught the default
queryset manager, ie: MyClass.objects.filter(some='value')"""
last_child = node.last_child()
if not last_child:
return False
# the default qs manager is called 'objects', we check for it here
attrname = getattr(last_child, 'attrname', None)
if attrname != 'objects':
return False
base_cls = last_child.last_child()
base_classes = DOCUMENT_BASES
for cls in base_cls.inferred():
if node_is_subclass(cls, *base_classes):
return True
return False
def visit_call(self, node):
children = node.get_children()
attr = next(children)
meth = safe_infer(attr)
if meth:
return False
last_child = attr.last_child()
if last_child is None:
return False
attr_self = safe_infer(last_child)
cls = getattr(attr_self, '_proxied', None)
if node_is_subclass(
cls, *
DOCUMENT_BASES) and not name_is_from_model(attr.attrname):
self.add_message('no-member',
node=attr,
args=('Document', cls.name, attr.attrname, ''))
def test_node_is_subclass_false():
module = astroid.parse(test_cls)
cls = module.body[0]
r = utils.node_is_subclass(cls, *DOCUMENT_BASES)
assert r is False
def test_node_is_subclass_bad_node():
module = astroid.parse(test_funcdef)
funcdef = module.body[0]
r = utils.node_is_subclass(funcdef, *DOCUMENT_BASES)
assert r is False
def test_node_is_subclass_true():
module = astroid.parse(test_doc)
cls = module.body[2]
r = utils.node_is_subclass(cls, *DOCUMENT_BASES)
assert r is True
