How to customise bundle product options block (change option renderer)

Question

I've to customise the bundle product options block. The default xml structure used by Magento is:

<action method="addRenderer">
<type>select</type><block>bundle/catalog_product_view_type_bundle_option_select</block>
</action>

Blocks are declared without any names, so I guess the remove tag doesn't work. How to remove a block from the layout xml? I tried to set a name, but it still doesn't work.

Answer 1

Take a look at the addRenderer() method:

/**
 * Add renderer for an option type, e.g., select, radio button, etc.
 *
 * @param string $type
 * @param string $block
 */
public function addRenderer($type, $block)
{
    $this->_optionRenderers[$type] = $block;
}

This means, if you call it again for a given type, it replaces the existing renderer:

<action method="addRenderer">
    <type>select</type>
    <block>your_module/your_select_renderer</block>
</action>