如何将ubercart添加到购物车按钮更改为图像[Drupal 7]？

Question

1. ubercart in add to cart button i want to change this as image of [add_to_cart.jpg].
2. How to update cart page with extra columns like unit price ..
3. Add extra column in ubercart cart-page by default this is table format.here some filed like [remove ,title,unit,total].

Thanks

Answer 1

we use in drupal 7 ubercart 3. here we use this function for update cart page.

This is answer of 2 question.

** hook_form_uc_cart_view_form_alter**. we got a solution .

implementation like.. 
function modulename_form_uc_cart_view_form_alter(&$form, &$form_state) {

  if (count($form['items'])) {
    // Add edit column to tapir table.
    $form['items']['#columns']['unit'] = array(
      'cell'   => t('Unit Price'),
      'weight' => 2,
    );

    // Add edit link to all products.
    foreach (element_children($form['items']) as $key) {

      if (isset($form['items'][$key]['cart_item_id'])) {

         $form['items'][$key]['unit'] = array(
         '#markup' =>t(uc_currency_format(sprintf ("%.2f", $form['items'][$key]['#entity']->sell_price ))),
        );

      }
    }
  }
}