Magento 2 – Remove a Block from Layout Without a Name

blockslayoutmagento-2.1magento2

I want to remove a block from the layout in magento 2 that is declared in a third party extension, but the block does not have a name.
Can I do that?

The block is declared like this

<referenceContainer name="before.body.end">
    <block class="Magento\Backend\Block\Template" template="[Vendor_Module]::template.phtml"/>
</referenceContainer>

I cannot use 

<referenceBlock name="..." remove="true" />

because, as you can see there is no name on it.

Best Answer

I found this issue in class Magento\Framework\View\Layout\ScheduledStructure\Helper

There is function _generateAnonymousName:

protected function _generateAnonymousName($class)
{
    $position = strpos($class, '\\Block\\');
    $key = $position !== false ? substr($class, $position + 7) : $class;
    $key = strtolower(trim($key, '_'));
    return $key . $this->counter++;
}

It's call from scheduleStructure function:

    public function scheduleStructure(
    Layout\ScheduledStructure $scheduledStructure,
    Layout\Element $currentNode,
    Layout\Element $parentNode
) {
    // if it hasn't a name it must be generated
    if (!(string)$currentNode->getAttribute('name')) {
        $name = $this->_generateAnonymousName($parentNode->getElementName() . '_schedule_block'); // CALL HERE
        $currentNode->setAttribute('name', $name);
    }
    $path = $name = (string)$currentNode->getAttribute('name');

    // Prepare scheduled element with default parameters [type, alias, parentName, siblingName, isAfter]
    $row = [
        self::SCHEDULED_STRUCTURE_INDEX_TYPE           => $currentNode->getName(),
        self::SCHEDULED_STRUCTURE_INDEX_ALIAS          => '',
        self::SCHEDULED_STRUCTURE_INDEX_PARENT_NAME    => '',
        self::SCHEDULED_STRUCTURE_INDEX_SIBLING_NAME   => null,
        self::SCHEDULED_STRUCTURE_INDEX_IS_AFTER       => true,
    ];

    $parentName = $parentNode->getElementName();
    //if this element has a parent element, there must be reset [alias, parentName, siblingName, isAfter]
    if ($parentName) {
        $row[self::SCHEDULED_STRUCTURE_INDEX_ALIAS] = (string)$currentNode->getAttribute('as');
        $row[self::SCHEDULED_STRUCTURE_INDEX_PARENT_NAME] = $parentName;

        list($row[self::SCHEDULED_STRUCTURE_INDEX_SIBLING_NAME],
            $row[self::SCHEDULED_STRUCTURE_INDEX_IS_AFTER]) = $this->_beforeAfterToSibling($currentNode);

        // materialized path for referencing nodes in the plain array of _scheduledStructure
        if ($scheduledStructure->hasPath($parentName)) {
            $path = $scheduledStructure->getPath($parentName) . '/' . $path;
        }
    }

    $this->_overrideElementWorkaround($scheduledStructure, $name, $path);
    $scheduledStructure->setPathElement($name, $path);
    $scheduledStructure->setStructureElement($name, $row);
    return $name;
}

With this case, Block name can be:

  • before.body.end_schedule_block1
  • before.body.end_schedule_block2
  • ...

I think you should define totals block without the name on container and order block name need remove on the container.

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