cross tables in cake 1.3

hi guys,.. I'm using to many cross tables in a controller,... and getting memory error not enough bites,... 

  var $uses = array('User', 'Friend', 'FriendRequest', 'UserInvisiblePoint', 'UserStatusPost', 'StatusLike', 'StatusNotification', 'ZodiacType', 'Point', 'ProfileComment', 'Gift', 'Guest', 'Resume', 'UserBan', 'Invitation', 'Report', 'Photo', 'PhotoFavorite', 'PhotoLike', 'PhotoRating', 'PhotoComment', 'Blog', 'BlogComment', 'BlogFavorite', 'BlogLike', 'Group', 'GroupFavorite', 'GroupDiscussion', 'GroupMember', 'GroupPhoto', 'GroupLike', 'GroupComment', 'Dba', 'DbaFavorite', 'DbaLike', 'Video', 'VideoFavorite', 'VideoLike', 'VideoComment', 'Classified', 'Event', 'Notification', 'ProfileNotification', 'Bookmark', 'Message', 'Alert', 'Signin', 'Signin');

how can I avoid this doing from "user.php" model,...? 

thanks in advance,... 

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