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I want to keep items in wishlist when user click "add all to cart" button. Have any idea how to fix it?

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Magento adds wishlist items to the cart using the addToCart() method on the wishlist Item class. This method has a parameter that specifies whether to also remove the item from the wishlist. You can add a plugin to this to force this parameter to always be false.

Add this to a custom module di.xml, replacing Namespace\Module with your module name:

<?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\Wishlist\Model\Item">
        <plugin name="keep_in_wishlist" type="Namespace\Module\Plugin\KeepItemsInWishlistOnPurchase" />
    </type>
</config>

Then add this plugin to your module:

<?php
namespace Namespace\Module\Plugin;

use Magento\Checkout\Model\Cart;
use Magento\Wishlist\Model\Item;

class KeepItemsInWishlistOnPurchase
{
    /**
     * @param \Magento\Wishlist\Model\Item $item
     * @param \Magento\Checkout\Model\Cart $cart
     * @return array
     */
    public function beforeAddToCart(Item $item, Cart $cart)
    {
        return [$cart, false];
    }
}
| improve this answer | |
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AS OF NOW 18 JAN 2020 this observer is not useful, please have a look on @scotts's answer

This is Magento's default functionality, when a product is added to cart it it removed from the wishlist.

You can update this functionality in observer vendor/magento/module-wishlist/Observer/AddToCart.php

which is triggered by checkout_cart_add_product_complete event in vendor/magento/module-checkout/Controller/Cart/Add.php controller.

To stop products removal from wishlist you have to disable this core observer by following way.

Your custom-module's Vendor/Module/etc/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="checkout_cart_add_product_complete">
        <observer name="wishlist" disabled="true"/>
    </event>
</config>
| improve this answer | |
  • 1
    This will not work because this observer no longer does anything. It is a deprecated holdover from Magento 1, and old Magento 1 at that. It handles requests to the standard add-to-cart controller (different from the regular wishlist add-to-cart controller) that include the wishlist_next URL parameter, which per this answer was removed in Magento 1.4: magento.stackexchange.com/a/253200/567 – Scott Buchanan Jan 17 at 18:00
  • @ScottBuchanan Thanks for the update... – Knight017 Jan 18 at 10:07

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