public static void removeCommunityFromCurrentUser(final ParseObject community) {
ParseUser user = ParseUser.getCurrentUser();
ParseRelation<ParseObject> relation = user.getRelation(Common.OBJECT_USER_COMMUNITY_RELATION);
relation.remove(community);
user.saveInBackground();
ParseRelation<ParseObject> communityUsers =
community.getRelation(Common.OBJECT_COMMUNITY_USERS);
communityUsers.remove(user);
community.saveInBackground();
String channel = "community_" + community.getObjectId();
ParsePush.unsubscribeInBackground(channel);
}
