protected function getSortableLinkStart($column_key)
    {
        if ($this->getColumnOption($column_key, self::COLUMN_OPTION_SORTABLE, false))
        {
            $sortable_url = $this->createUrl(array(
                "column_orders[{$column_key}]" => (isset($this->columnOrders[$column_key]) && $this->columnOrders[$column_key] == 'asc') ? 'desc' : 'asc',
                'single_order' => $column_key
            ));

            echo '<a href="' . $sortable_url . '">';
        }
    }
protected function getSortableLinkStart($column_key)
    {
        if ($this->getColumnOption($column_key, self::COLUMN_OPTION_SORTABLE, false))
        {
            $sortable_url = $this->createUrl(array(
                "column_orders[{$column_key}]" => (isset($this->columnOrders[$column_key]) && $this->columnOrders[$column_key] == 'asc') ? 'desc' : 'asc',
                'single_order' => $column_key
            ));

            echo '<a href="' . $sortable_url . '">';
        }
    }
protected function getSortableLinkStart ( $ column_key ) { if ( $ this -> getColumnOption ( $ column_key , self :: COLUMN_OPTION_SORTABLE , false ) ) { $ sortable_url = $ this -> createUrl ( array ( "column_orders[{$column_key}]" => ( isset ( $ this -> columnOrders [ $ column_key ] ) && $ this -> columnOrders [ $ column_key ] == 'asc' ) ? 'desc' : 'asc' , 'single_order' => $ column_key ) ) ; echo '<a href="' . $ sortable_url . '">' ; } }
Get sortable element link start

@param string    $column_key
@return void
Get sortable element link start