public function select($field)
    {
        $this->_queryType = self :: SELECT;
        if (!is_array($field)) {
            $field = array($field);
        }
        $this->_select = array_merge($this->_select, $field);

        return $this;
    }
public function select($field)
    {
        $this->_queryType = self :: SELECT;
        if (!is_array($field)) {
            $field = array($field);
        }
        $this->_select = array_merge($this->_select, $field);

        return $this;
    }
public function select ( $ field ) { $ this -> _queryType = self :: SELECT ; if ( ! is_array ( $ field ) ) { $ field = array ( $ field ) ; } $ this -> _select = array_merge ( $ this -> _select , $ field ) ; return $ this ; }
Add field to select

@param $field

@return $this
Add field to select