Ouzo\Db\QueryBoundValuesExtractor::extract PHP 메소드

    public function extract()
    {
        $this->_addBindValues($this->query);
        return $this->_boundValues;
    }

 public function _buildQuery()
 {
     $this->_fetchStyle = $this->_query->selectType;
     $queryBindValuesExtractor = new QueryBoundValuesExtractor($this->_query);
     $this->_boundValues = $queryBindValuesExtractor->extract();
     $this->_sql = $this->_adapter->buildQuery($this->_query);
 }