+ def like(self, user):
+ from social.utils import likes, get_set, set_sets
+ if not likes(user, self):
+ tag = get_set(user, '')
+ set_sets(user, self, [tag])
+
+ def unlike(self, user):
+ from social.utils import likes, set_sets
+ if likes(user, self):
+ set_sets(user, self, [])
+