Proper way to get $block->getChildHtml inside the custom phtml file

Question

I want to add default wishlist sidebar section into my Magento_Theme template,

Layout xml file:

<referenceBlock name="header.panel">
 <block class="Magento\Framework\View\Element\Template" name="mylocation.block" template="Magento_Theme::location_link.phtml" after="-">
 <!-- Wishlist sidebar section -->
 <block class="Magento\Wishlist\Block\Customer\Sidebar" name="wishlist_sidebar" as="wishlist" template="Magento_Wishlist::sidebar.phtml"/> 
 </block>
 </referenceBlock>

FYI : The following code coming from core vendor\magento\module-wishlist\view\frontend\templates\sidebar.phtml

 <!-- Wishlist sidebar section -->
<block class="Magento\Wishlist\Block\Customer\Sidebar" name="wishlist_sidebar" as="wishlist" template="Magento_Wishlist::sidebar.phtml"/> 

After added in layout xml file and getting this block using getChildHtml in app\desigh\frontend\Zero\my_theme\Magento_Theme\templates\location_link.phtml

<?php echo $block->getChildHtml('wishlist');?>

Not working, any help thanks.

Answer 1

Your method is not working because your blocks are siblings and do not have a parent/child relationship. The key is the word child in getChildHtml.

If you nest your wishlist block inside the location block that will work.

Also, header.panel is a container, not a block. See https://github.com/magento/magento2/blob/5e57ddd6b0452121e26ce93c74029cf58c4b1d6b/app/code/Magento/Theme/view/frontend/layout/default.xml#L34

<referenceContainer name="header.panel">
 <block class="Magento\Framework\View\Element\Template" name="mylocation.block" template="Magento_Theme::location_link.phtml" after="-">
 <!-- Wishlist sidebar section -->
 <block class="Magento\Wishlist\Block\Customer\Sidebar" name="wishlist_sidebar" as="wishlistc" template="Magento_Wishlist::sidebar.phtml"/> 
 </block>
 </referenceContainer>

• zus: After i updated your code, still response not return to the phtml file, i am trying to get the wishlist sidebar section in my phtml file? Screenshot : snipboard.io/qgLr7a.jpg
• zus: In my phtml file i am using : <?php echo $block->getChildHtml('wishlistc');?>
• Ben Crook: That's correct. Is your location_link.phtml file rendering on the frontend?
• zus: Yes, but still wishlist sidebar not showing.
• zus: code: codeshare.io/5QxPpL

Answer 2

Try to move it instead:

 <move element="wishlist_sidebar" destination="mylocation.block" before="-"/>

Also make sure to clear the cache, sometimes not even when running flush and clear cache, magento stop using cached. When it happens I need to clear static files. I recommend disable full_page and block_html cache while you working on it:

bin/magento c:d full_page
bin/magento c:d block_html

• zus: FYI - I try to get that wishlist section inside the dropdown dialog widget bit.ly/3vZtpPe, i have icon on header if customer click that icon dropdown show the wishlist products, so that i am using <?php echo $block->getChildHtml('wishlist');?> inside the phtml file.