Passing variables to a child html block in Magento 2

Question

At list.phtml, I am trying to get product object or product id for child template, which it comes from other module. How I can get product id at that phtml file?
In magento 1.x it was possible via following technique. when used it into magento 2.x is throwing error

Uncaught Error: Call to a member function setData()

my custom module layout

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="category.products.list">
            <action method="setTemplate">
                <argument name="template" xsi:type="string">PR_Catalog::product/list.phtml</argument>
            </action>
            <block class="PR\Catalog\Block\Product\Offers" name="category.products.offers" as="offer_list" template="PR_Catalog::product/offers.phtml" />
        </referenceBlock>        
    </body>
</page>

custom module list.phtml file

<?php    foreach ($_productCollection as $_product){ ?>

<?php 
        $block->getChildBlock("offer_list")->setData("product", $_product);                            
        echo $block->getChildHtml('offer_list') 
?>

<?php } ?>

block class code is

<?php
namespace PR\Catalog\Block\Product;

class Offers extends \Magento\Framework\View\Element\Template
{
    private $product;

    public function setProduct($product)
    {
        $this->product = $product;
    }

    public function getProduct()
    {
        var_dump($this->product);die;
      return $this->product;  
    }

}

child block phtml file

<div class="other-offers">
   <?php echo $block->getProduct()->getId(); ?>

</div>

Victor S. · Accepted Answer · 2021-06-10 04:56:08Z

10

You have to define public function setProduct in your block class:

public function setProduct($product)
{
    $this->product = $product;
}

and then you will be able to get it in your block :)

Also, use getChildBlock function instead of getChild

Now you have to use your newly created function, setProduct($_product) instead of setData('product', $_product).

edited Jun 10, 2021 at 4:56

Victor S.

3403 silver badges14 bronze badges

answered Apr 25, 2016 at 10:05

Bartłomiej Szubert

2,65220 silver badges26 bronze badges

still not working...

Praful Rajput
– Praful Rajput

2016-04-25 10:33:32 +00:00
Commented Apr 25, 2016 at 10:33
Can you post your current code under your question?

Bartłomiej Szubert
– Bartłomiej Szubert

2016-04-25 10:35:43 +00:00
Commented Apr 25, 2016 at 10:35
I have posted it.

Praful Rajput
– Praful Rajput

2016-04-25 10:43:34 +00:00
Commented Apr 25, 2016 at 10:43
Check my edited answer

Bartłomiej Szubert
– Bartłomiej Szubert

2016-04-25 10:47:28 +00:00
Commented Apr 25, 2016 at 10:47
2

we have to use $block->getChildHtml('block_name', false); i.e. set cache disabled.

Praful Rajput
– Praful Rajput

2016-04-26 12:31:36 +00:00
Commented Apr 26, 2016 at 12:31

| Show 2 more comments

Prashant Valanda · Accepted Answer · 2016-04-25 10:48:42Z

5

Use below code:

$block->getChildBlock("offer_list")->setData("product", $_product);

to

$this->getLayout()->createBlock('PR\Catalog\Block\Product\Offers')->setProduct($_product);

answered Apr 25, 2016 at 10:48

Prashant Valanda

12.7k5 gold badges44 silver badges70 bronze badges

Add a comment |

SeniorDeveloper · Accepted Answer · 2017-02-21 16:12:50Z

In your block class add the following:

protected $product;

public function setProduct($_product){
    $this->product = $_product;
}

public function getProduct(){
    return $this->product;
}

In the template file that you call the child block do it like this:

<?php /* Start Custom Changes */ ?>
<?php if ($myBlock = $block->getChildBlock('my_child_block')): ?>
    <?php
        $myBlock->setProduct($_product); 
        echo $block->getChildHtml('my_child_block', false);
    ?>
<?php endif; ?>
<?php /* End Custom Changes */ ?>

Now in your child block template file:

<?php echo $block->getProduct()->getId(); ?>

Ajay Patidar · Accepted Answer · 2019-04-05 12:15:21Z

First, we need to call a phtml file from the block using the below code.

From Static Block:

{{block class="Vendor\Extesnion\Block\Customblock" name="customblock" template="Vendor_Extension::filename.phtml" variableName="123"}}

From another PHTML file:

echo $this->getLayout()->createBlock("Vendor\Extesnion\Block\Customblock")->setTemplate("Vendor_Extension::filename.phtml")->setData("variableName", 123)->toHtml();

From XML

<block class="Vendor\Extesnion\Block\Customblock" name="block_unique_name" after="-" template="Vendor_Extension::filename.phtml"> 
    <arguments>
       <argument name="variableName" translate="true" xsi:type="string">123</argument>
   </arguments>
</block>

In the above code, We have passed the value of variableName

Now we need to get that additional data on phtml file like this.

$variablevalue = $block->getData('variableName');

OR

$variablevalue = $block->getVariableName();

That's it. Simply clear cache.

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