I have created a custom plugin for sorting options for high to low & low to high price. High to low sort works fine but “low to high” sort order not showing correct results.
app/code/Digital/CustomSort/etc/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\Block\Product\ProductList\Toolbar"> <plugin name="digital_customsort_block_product_productlist_toolbar" type="Digital\CustomSort\Plugin\Catalog\Block\Product\ProductList\Toolbar" /> </type> <type name="Magento\Catalog\Model\Config"> <plugin name="digital_customsort_model_config" type="Digital\CustomSort\Plugin\Catalog\Model\Config" /> </type> </config> app/code/Digital/CustomSort/Plugin/Catalog/Model/Config.php
<?php //namespace Digital\CustomSort\Plugin\Model; //class Config extends \Magento\Catalog\Model\Config namespace Digital\CustomSort\Plugin\Catalog\Model; use Magento\Catalog\Model\Config as CatalogConfig; class Config { public function afterGetAttributeUsedForSortByArray(CatalogConfig $ subject, $ result) { $ result['low_to_high'] = __('Price - Low To High'); $ result['high_to_low'] = __('Price - High To Low'); return $ result; } } Digital/CustomSort/Plugin/Catalog/Block/Product/ProductList/Toolbar.php
<?php //namespace Digital\CustomSort\Plugin\Block\Product\ProductList; //class Toolbar extends \Magento\Catalog\Block\Product\ProductList\Toolbar namespace Digital\CustomSort\Plugin\Catalog\Block\Product\ProductList; use Magento\Catalog\Block\Product\ProductList\Toolbar as ProductListToolbar; class Toolbar { public function afterSetCollection(ProductListToolbar $ subject, $ result, $ collection) { switch ($ subject->getCurrentOrder()) { case 'low_to_high': return $ result->getCollection()->setOrder('price', 'asc'); case 'high_to_low': return $ result->getCollection()->setOrder('price', 'desc'); default: return $ result; } } } 