Magento 2 – Change Template of a Block Without Name

blocksmagento2template

I want to change to override a block's template with my custom template. But it does not have a "name", it only has a "as".
The one I want to override is:

<block class="Magento\Sales\Block\Adminhtml\Order\View\Items\Renderer\DefaultRenderer"
       as="default"
       template="order/view/items/renderer/default.phtml"/>

Best Answer

How to override a template having layout ALIAS.

This answer is a possible example, you can follow this to override ALIAS template.

I have created two example modules, Vendor_Module has layout with alias template, We are overriding this alias by Vendortwo_Moduletwo module.

Assume you know the steps to create module, i am not posting entire module creation.

Module 1

\app\code\Vendor\Module\etc\frontend\routes.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/App/etc/routes.xsd">
    <router id="standard">
        <route id="module" frontName="module">
            <module name="Vendor_Module" />
        </route>
    </router>
</config>

\app\code\Vendor\Module\view\frontend\layout\module_test_test.xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="2columns-left" xsi:noNamespaceSchemaLocation="../../../../../../../lib/internal/Magento/Framework/View/Layout/etc/page_configuration.xsd">
     <body>     
        <referenceContainer name="content">         
            <block class="Vendor\Module\Block\Test\Test" name="test_test" template="test/test.phtml">
                <block class="Vendor\Module\Block\Test\Test" as="testali" template="test/testali.phtml"/>
            </block>
        </referenceContainer>      
    </body>
</page>

Module 2

\app\code\Vendortwo\Moduletwo\etc\frontend\routes.xml

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/App/etc/routes.xsd">
    <router id="standard">
        <route id="moduletwo" frontName="moduletwo">
            <module name="Vendortwo_Moduletwo" />
        </route>
    </router>
</config>

\app\code\Vendortwo\Moduletwo\view\frontend\layout\default.xml

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
        <referenceBlock name="test_test">
            <block class="Vendortwo\Moduletwo\Block\Two\Two" as="testali" template="two/twoalias.phtml"/>
        </referenceBlock>
</page>

After removing cache, i run http://localhost/magento210/module/test/test

The alias template is override by Vendortwo_Moduletwo two/twoalias.phtml

Related Solutions

Magento – Magento Core: identical block name in one handle

Erfan is right that the html is outputted twice, once as a child of 'checkout.onepage.login' and once as a child of 'checkout.onepage.billing'

Thus there are two child blocks with the same name. Each can have a different template, and each gets rendered as a child of the parent.

To change the persistent block in either of the parent blocks, you need to target the parent block directly such as:

<checkout_onepage_index>
    <reference name="checkout.onepage.login">
            <block type="persistent/form_remember" name="persistent.remember.me" template="my/custom/template.phtml" />
        </reference>
</checkout_onepage_index>

The above will only change the template in the login block.

If you only target the child block 'persistent.remember.me' then magento seems to only change the occurrence of the first found block. Start Speculation: This is most likely in order or alpha occurrence , with 'checkout.onepage.billing' appearing alphabetically before 'checkout.onepage.login', in whatever array is used to store the block internally. The fact that .billing is rendered after .login just makes it look like it is only changing the second occurrence. :) End Speculation

Magento Admin – Fix Rewrite Block Not Working Properly

Take a look at Magento CE 1.7.0.2 - Adding Next Previous in ADMIN sales order view product try calling the parent::__construct(); last.

class MageIgniter_NextBackButton_Block_Adminhtml_Sales_Order_View extends Mage_Adminhtml_Block_Sales_Order_View {
   ....

     public function  __construct() {
     if($url = $this->getPreviousUrl()){
       $this->_addButton('previous_button', array(
           'label'     => Mage::helper('sales')->__('Previous'),
           'onclick'   => 'setLocation(\'' . $url . '\')',
           'class'     => 'go'
       ));
     }

     parent::__construct();
}

Also another way to add a button without rewriting is to use an observer

In config.xml

<events>
    <adminhtml_block_html_before>
        <observers>
            <orderconfirmation>
                <class>orderconfirmation/observer</class>
                <method>orderPageButton</method>
                <type>singleton</type>
            </orderconfirmation>
        </observers>
    </adminhtml_block_html_before>
</events>

In observer.php

public function orderPageButton(Varien_Event_Observer $observer) {
    $block = $observer->getEvent()->getData('block');

    if ($block->getId() == 'sales_order_view' && $block->getRequest()->getControllerName() == 'sales_order') {

            $block->addButton('guest_to_customer', array(
                'label' => Mage::helper('sales')->__('Convert To Customer'),
                'onclick' => "confirmSetLocation('{$message}', '{$url}')",
            ));

    }
}

Best Answer

Related Solutions

Magento – Magento Core: identical block name in one handle

Magento Admin – Fix Rewrite Block Not Working Properly

Related Topic