NilPortugues\Sql\QueryBuilder\Manipulation\JoinQuery::join PHP Метод

    public function join($table, $selfColumn = null, $refColumn = null, $columns = [], $joinType = null)
    {
        if (!isset($this->joins[$table])) {
            $select = QueryFactory::createSelect($table);
            $select->setColumns($columns);
            $select->setJoinType($joinType);
            $select->setParentQuery($this->select);
            $this->addJoin($select, $selfColumn, $refColumn);
        }
        return $this->joins[$table];
    }

 /**
  * @param string   $table
  * @param string   $selfColumn
  * @param string   $refColumn
  * @param string[] $columns
  * @param string   $joinType
  *
  * @return Select
  */
 public function join($table, $selfColumn = null, $refColumn = null, $columns = array(), $joinType = null)
 {
     return $this->joinQuery->join($table, $selfColumn, $refColumn, $columns, $joinType);
 }