public function getPrimaryKey($tableAlias = '')
    {
        $output = '';

        if (!empty($tableAlias)) {
            $output .= '`' . $tableAlias . '`.';
        }

        $output .= '`'.static::ID_COLUMN.'`';

        return $output;
    }
public function getPrimaryKey($tableAlias = '')
    {
        $output = '';

        if (!empty($tableAlias)) {
            $output .= '`' . $tableAlias . '`.';
        }

        $output .= '`'.static::ID_COLUMN.'`';

        return $output;
    }
public function getPrimaryKey ( $ tableAlias = '' ) { $ output = '' ; if ( ! empty ( $ tableAlias ) ) { $ output .= '`' . $ tableAlias . '`.' ; } $ output .= '`' . static :: ID_COLUMN . '`' ; return $ output ; }
Return primary key qualified or not

@param string $tableAlias
@return string
Return primary key qualified or not