Complex message not working

Question

I've followed this tutorial: https://store.fooman.co.nz/blog/displaying-complex-error-messages-in-magento-2.html

This is my di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\View\Element\Message\MessageConfigurationsPool">
        <arguments>
            <argument name="configurationsMap" xsi:type="array">
                <item name="PortailAxiane" xsi:type="array">
                    <item name="renderer" xsi:type="const">\Magento\Framework\View\Element\Message\Renderer\BlockRenderer::CODE</item>
                    <item name="data" xsi:type="array">
                        <item name="template" xsi:type="string">Portail_Axiane::custommessage.phtml</item>
                    </item>
                </item>
            </argument>
        </arguments>
    </type>
</config>

This is my custommessage.phtml

<?php echo $block->escapeUrl($block->getData('url'))?>

And my message in my observer :

$this->_messageManager->addComplexErrorMessage(
                        'PortailAxiane',
                        array(
                            "url" => $produtToAddUrl
                        ), null
                    );

But as the result, I only have the red rectangle. What did I missed ?

Answer 1

It appears code relating to messaging needs to go in the view you wish to add it to. So ensure your di.xml file is located at:

etc/frontend/di.xml or etc/adminhtml/di.xml

instead of just etc/di.xml

Answer 2

Mark Shust's answer worked for me.
So you need to create another one di.xml in etc/frontend or etc/adminhtml (depending on what area you need) folder of your module.
And then add this code to it.

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\View\Element\Message\MessageConfigurationsPool">
        <arguments>
            <argument name="configurationsMap" xsi:type="array">
                <item name="identifierName" xsi:type="array">
                    <item name="renderer" xsi:type="const">\Magento\Framework\View\Element\Message\Renderer\BlockRenderer::CODE</item>
                    <item name="data" xsi:type="array">
                        <item name="template" xsi:type="string">Vendor_Module::messages/example-message.phtml</item>
                    </item>
                </item>
            </argument>
        </arguments>
    </type>
</config>