Ouzo\Db\ModelQueryBuilder::using PHP Method

using() public method

public using ( $relationSelector, null $aliases ) : ModelQueryBuilder
$relationSelector - Relation object, relation name or nested relations 'rel1->rel2'
$aliases null - alias of the first joined table or array of aliases for nested joins
return ModelQueryBuilder
    public function using($relationSelector, $aliases)
    {
        $modelJoins = $this->createModelJoins($relationSelector, $aliases, 'USING', array());
        foreach ($modelJoins as $modelJoin) {
            $this->_query->addUsing($modelJoin->asJoinClause());
        }
        return $this;
    }