Add support of mongoengine module.

Prevent 'no-member' errors for Document._meta, objects, id/pk, save and errors.

Author: goldan

pylint_django/transforms/__init__.py

@@ -39,3 +39,4 @@ def set_fake_locals(module):
                'Model',
                'Manager')
 _add_transform('django.utils.translation', 'ugettext_lazy')
+_add_transform('mongoengine', 'Document')

pylint_django/transforms/transforms/mongoengine.py

@@ -0,0 +1,13 @@
+from mongoengine.errors import DoesNotExist, MultipleObjectsReturned
+
+class Document(object):
+    _meta = None
+    objects = None
+
+    id = None
+    pk = None
+
+    MultipleObjectsReturned = MultipleObjectsReturned
+    DoesNotExist = DoesNotExist
+
+    save = lambda: None