class AppModel extends Model {
        function unbindModelAll() {
                foreach(array(
                        'hasOne' => array_keys($this->hasOne),
                        'hasMany' => array_keys($this->hasMany),
                        'belongsTo' => array_keys($this->belongsTo),
                        'hasAndBelongsToMany' => array_keys($this->hasAndBelongsToMany)
                ) as $relation => $model) {
                        $this->unbindModel(array($relation => $model));
                }
        }
}