public function queue($relation, array $args)
    {
        $this->queue[] = array(
            self::PARAM_RELATION => $relation,
            self::PARAM_ARGS => $args
        );
    }
public function queue($relation, array $args)
    {
        $this->queue[] = array(
            self::PARAM_RELATION => $relation,
            self::PARAM_ARGS => $args
        );
    }
public function queue ( $ relation , array $ args ) { $ this -> queue [ ] = array ( self :: PARAM_RELATION => $ relation , self :: PARAM_ARGS => $ args ) ; }
Append new relation to the queue stack

@param string $relation
@param array $args Arguments to be passed on invoking
@return void
Append new relation to the queue stack