Magento – How to determine all blocks and child blocks attached to a handle

blockslayout

Is there a way to determine which blocks are attached to a handle and/or what child-blocks a block have?

Best Answer

To get all handles see Mage_Core_Model_Layout_Update::getHandles()

For example inside a controller you can use it for debugging purposes like:

Zend_Debug::dump($this->getLayout()->getUpdate()->getHandles());

Note: use it after loadLayout or loadLayoutUpdates call

To get all block children see Mage_Core_Block_Abstract::getChild() without parameters Note: the getChild() returns all child blocks as an object so used something like

Zend_Debug::dump(array_keys($block->getChild()))

and you get an array with child block alias names

and if you want to see more about a block use

Zend_Debug::dump($block->getChild($aliasName))

Related Solutions

Magento – Is it possible to handle success / error messages from within blocks

You can do this by overwriting the _prepareLayout() function in your block:

protected function _prepareLayout() {
    // IF statement check for config  or something else
        $this->getMessagesBlock()->addError('oh what');
    // End of IF
    return parent::_prepareLayout();
}

_prepareLayout() is called before all of the _toHtml() functions are called on every block and after the layout has been loaded.

Magento 2 Blocks – How to Load All Child Blocks in Controller

Please try this code:-

$layout         = Mage::app()->getLayout();
 $block_header   = $layout->createBlock('block/block')->setTemplate('template_url');

 $block_links1  = $layout->createBlock('block/block','block_name')->setTemplate('template_url');
 $block_header->setChild('block_as',$block_links1);

 $block_links2  = $layout->createBlock('block/block','block_name')->setTemplate('template_url');
 $block_header->setChild('block_as',$block_links2);

 $block_links    = $layout->createBlock('block/block','block_name')->setTemplate('template_url');
 $block_header->setChild('block_as',$block_links);

 $block_links->addItemRender('configurable','checkout/cart_item_renderer_configurable','checkout/cart/sidebar/default.phtml');
 $slide = $block_header->toHtml();

Best Answer

Related Solutions

Magento – Is it possible to handle success / error messages from within blocks

Magento 2 Blocks – How to Load All Child Blocks in Controller

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