Magento 2 - sort by price - sorting

Question

I have a problem with a multistore site created with Magento 2.4. Right now the products from the category page and the search page are arranged by name. The options for sorting are: Alphabetical A - Z and Z - A, and by price from low to high and high to low. When I try to sort the products alphabetical everything works fine, but when I try by price it's like a random sort. I also put a custom module but the same result. Instead, if I sort them by product id or by weight it is ok.
if ($currentOrder) {
if ($currentOrder == 'price_asc') {
$subject->getCollection()->setOrder('price', 'asc');
} elseif ($currentOrder == 'price_desc') {
$subject->getCollection()->setOrder('price', 'desc');
} elseif ($currentOrder == 'name_asc') {
$subject->getCollection()->setOrder('name', 'asc');
} elseif ($currentOrder == 'name_desc') {
$subject->getCollection()->setOrder('name', 'desc');
}
}
I also put ->getStoreId(1) after getCollection() but I have same the result. Edit: from what I saw instead of sort by price it's a sort by product id

Answer 1

Steps to Add Magento 2 Sort by Price for Low to High & High to Low Options:
Step 1: Create registration.php file in app\code\Vendor\Extension
Step 2: Create module.xml file in app\code\Vendor\Extension\etc
Step 3: Create di.xml file in app\code\Vendor\Extension\etc
Step 4: Create Toolbar.php file in app\code\Vendor\Extension\Plugin\Catalog\Block
Step 5: Create Config.php file in app\code\Vendor\Extension\Plugin\Catalog\Model
You can refer to the details here.

Answer 2

It Work's for Magento 2.4 versions
I am Assuming you have created a custom module Vendor/module_sort
create di.xml file in vendor/module_sort/etc/
<?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\Config">
<plugin name="Vendor_module_sort::addCustomOptions" type="Vendor\module_sort\Plugin\Model\Config" />
</type>
<preference for="Magento\Catalog\Block\Product\ProductList\Toolbar" type="Vendor\module_sort\Plugin\Catalog\Block\Toolbar" />
</config>
Create Config.php in Vendor/module_sort/plugin/Model
<?php
namespace Vendor\module_sort\Plugin\Model;
class Config {
public function afterGetAttributeUsedForSortByArray(\Magento\Catalog\Model\Config $catalogConfig, $options)
{
unset($options['name']);
unset($options['price']);
//New sorting options
$customOption['high_to_low'] = __( 'Price High to Low' );
$customOption['low_to_high'] = __( 'Price Low to High' );
$customOption['name_Z_to_A'] = __( 'Product Title:Z-A' );
$customOption['name_A_to_Z'] = __( 'Product Title:A-Z' );
// $customOption['name'] = $default_options['name'];
//Merge default sorting options with custom options
$options = array_merge($customOption, $options);
return $options;
}
}
Create Toolbar.php in Vendor/module_sort/plugin/Catalog/Block/
<?php
namespace Vendor\module_sort\Plugin\Catalog\Block;
class Toolbar extends \Magento\Catalog\Block\Product\ProductList\Toolbar
{
/**
* Set collection to pager
*
* #param \Magento\Framework\Data\Collection $collection
* #return \Magento\Catalog\Block\Product\ProductList\Toolbar
*/
public function setCollection($collection)
{
$this->_collection = $collection;
$this->_collection->setCurPage($this->getCurrentPage());
// we need to set pagination only if passed value integer and more that 0
$limit = (int)$this->getLimit();
if ($limit) {
$this->_collection->setPageSize($limit);
}
if ($this->getCurrentOrder()) {
if (($this->getCurrentOrder()) == 'position') {
$this->_collection->addAttributeToSort(
$this->getCurrentOrder(),
$this->getCurrentDirection()
);
} else {
if ($this->getCurrentOrder() == 'high_to_low') {
$this->_collection->setOrder('price', 'desc');
} elseif ($this->getCurrentOrder() == 'low_to_high') {
$this->_collection->setOrder('price', 'asc');
}elseif ($this->getCurrentOrder() == 'name_Z_to_A') {
$this->_collection->setOrder('name', 'desc');
}elseif ($this->getCurrentOrder() == 'name_A_to_Z') {
$this->_collection->setOrder('name', 'asc');
}
}
}
return $this;
}
}