more cleans for model/authourization_group

ckan/model/authorization_group.py

@@ -1,7 +1,7 @@
 import datetime
 
 from sqlalchemy import orm, types, Column, Table, ForeignKey, or_
-#from meta import *
+
 import meta
 import user
 import types as _types
@@ -15,7 +15,7 @@
 
 authorization_group_user_table = Table('authorization_group_user', meta.metadata,
     Column('id', types.UnicodeText, primary_key=True, default=_types.make_uuid),
-    Column('authorization_group_id', types.UnicodeText, ForeignKey('authorization_group.id'), 
+    Column('authorization_group_id', types.UnicodeText, ForeignKey('authorization_group.id'),
            nullable=False),
     Column('user_id', types.UnicodeText, ForeignKey('user.id'), nullable=False)
     )
@@ -25,7 +25,7 @@ class AuthorizationGroup(domain_object.DomainObject):
 
     @classmethod
     def search(cls, querystr, sqlalchemy_query=None):
-        '''Search name.         
+        '''Search name.
         '''
         if sqlalchemy_query is None:
             query = meta.Session.query(cls)
@@ -42,7 +42,7 @@ def get(cls, auth_group_reference):
         query = query.filter(or_(cls.name==auth_group_reference,
                                  cls.id==auth_group_reference))
         return query.first()
-    
+
 class AuthorizationGroupUser(domain_object.DomainObject):
     pass
 
@@ -51,7 +51,7 @@ def user_in_authorization_group(user, authorization_group):
     q = q.filter_by(id=authorization_group.id)
     q = q.filter(AuthorizationGroup.users.contains(user))
     return q.count() == 1
-        
+
 def add_user_to_authorization_group(user, authorization_group, role):
     assert not user_in_authorization_group(user, authorization_group)
     from authz import add_user_to_role
@@ -69,13 +69,13 @@ def remove_user_from_authorization_group(user, authorization_group):
                     user=user)
     for agr in q:
         remove_user_from_role(user, agr.role, authorization_group)
-    
+
 
 
 meta.mapper(AuthorizationGroup, authorization_group_table, properties={
-       'users': orm.relation(user.User, lazy=True, secondary=authorization_group_user_table, 
-                         backref=orm.backref('authorization_groups', lazy=True)) 
+       'users': orm.relation(user.User, lazy=True, secondary=authorization_group_user_table,
+                         backref=orm.backref('authorization_groups', lazy=True))
        },
        order_by=authorization_group_table.c.name)
-    
+
 meta.mapper(AuthorizationGroupUser, authorization_group_user_table)