Magento 2 How to hide products from entire shop based on custom attribute value

Question

Is there any way by custom code or plugin, products can be hide from entire frontend shop based on custom attribute type yes or no ?

Answer 1

The Magento standard way would be to use the visibility attribute but if you have to do it with a custom attribute here's something that'll get you started, and may be all you need.

There isn't one function that can overridden to completely control product visibility but this is a good way to control the visibility of products on category pages.

etc/frontend/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\Catalog\Model\Layer\Category\CollectionFilter">
        <plugin name="vendorname_modulename_catalog_model_layer_category_collectionfilter" type="VendorName\ModuleName\Plugin\CollectionFilter"/>
    </type>
</config>

Plugin/CollectionFilter.php

<?php

namespace VendorName\ModuleName\Plugin;

class CollectionFilter
{
    public function afterFilter(
        \Magento\Catalog\Model\Layer\Category\CollectionFilter $subject,
        $result,
        \Magento\CatalogSearch\Model\ResourceModel\FullText\Collection $collection,
        \Magento\Catalog\Model\Category $category
    ) {
        $collection->addAttributeToFilter('custom_attribute', 'custom_value');
    }
}

Answer 2

After fixing error about the above solution, I could find the solution.

The proper solution is as follow.

etc/frontend/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\Catalog\Model\Layer\Category\CollectionFilter">
    <plugin name="vendorname_modulename_catalog_model_layer_category_collectionfilter" type="Vendorname\Modulename\Plugin\CollectionFilter"/>
</type>

app/code/Vendorname/Modulename/Plugin/CollectionFilter

 namespace Vendorname\Modulename\Plugin;

 class CollectionFilter
 {
    public function afterFilter(
        \Magento\Catalog\Model\Layer\Category\CollectionFilter $subject,
        $result,
        \Magento\Catalog\Model\ResourceModel\Product\Collection $collection,
        \Magento\Catalog\Model\Category $category
    ) {
        $collection->addAttributeToFilter('custom_attribute', $custom_value);
    }
 }

The plugin's parameters must be $subject, $result and same parameters of Magento\Catalog\Model\Layer\Category\CollectionFilter's filter().

we can find it on vendor\magento\module-catalog\Model\Layer\Category\CollectionFilter.php

/**
 * Filter product collection
 *
 * @param \Magento\Catalog\Model\ResourceModel\Product\Collection $collection
 * @param \Magento\Catalog\Model\Category $category
 * @return void
 */
public function filter(
    $collection,
    \Magento\Catalog\Model\Category $category
) {
    $collection
        ->addAttributeToSelect($this->catalogConfig->getProductAttributes())
        ->addMinimalPrice()
        ->addFinalPrice()
        ->addTaxPercents()
        ->addUrlRewrite($category->getId())
        ->setVisibility($this->productVisibility->getVisibleInCatalogIds());
}

That's why the 3rd parameter must be as follow.

 \Magento\Catalog\Model\ResourceModel\Product\Collection $collection

Answer 3

The above method works, but it results in the page navigation being off.

For example, if you are viewing 12 items per page with a total of 24 results, and hide one item on the first page, the first page should show a total of 12. With this change, there will only be 11 items on the first page.