Ecommerce Shopify WordPress Discussion

Woocommerce plugin discounts on atribute

I am trying to develop a simple WordPress plugin That will, when a percentage is entered and a product attribute is selected, apply that percentage to all products under the chosen attribute, such as 'Brand', taking the regular price, reducing it by 10%, entering that amount under the sale price, and updating the products." When i hit apply it does nothing , price stays the same.Can someone check where i am wrong? Thanks <?php /* Plugin Name: Discount by Attributes Description: Plugin for applying discounts based on product attributes in WooCommerce. Version: 1.0 Author: Matija Raša */ // Dodajemo hook koji će aktivirati funkciju pri inicijalizaciji administracijskog sučelja add_action('admin_menu', 'add_admin_page'); // Funkcija za dodavanje stranice u administracijsko sučelje function add_admin_page() { // Dodajemo stranicu pod "Woocommerce" izbornik add_submenu_page( 'woocommerce', 'Discount by Attributes', // Naziv stranice 'Discount by Attributes', // Naziv stavke izbornika 'manage_options', 'discount-by-attributes', 'render_admin_page' ); } // Funkcija za renderiranje sadržaja stranice function render_admin_page() { if (isset($_POST['discount_percentage']) && isset($_POST['product_attribute'])) { $discount_percentage = floatval($_POST['discount_percentage']); $product_attribute = sanitize_text_field($_POST['product_attribute']); // Spremanje postavki u bazu podataka update_option('discount_percentage', $discount_percentage); update_option('product_attribute', $product_attribute); // Primjenjujemo popust na proizvode s odabranim atributom apply_discount_by_attribute($discount_percentage, $product_attribute); ?> <div class="updated"><p><strong><?php _e('Discount applied to products with selected attribute.'); ?></strong></p></div> <?php } ?> <div class="wrap"> <h2>Discount by Attributes</h2> <form method="post" action=""> <table class="form-table"> <tr> <th scope="row">Discount Percentage:</th> <td><input type="number" name="discount_percentage" min="0" max="100" step="0.01" /></td> </tr> <tr> <th scope="row">Attribute:</th> <td> <select name="product_attribute"> <option value="">Select Attribute</option> <?php // Učitajte sve atribute proizvoda $attributes = wc_get_attribute_taxonomies(); foreach ($attributes as $attribute) { echo '<option value="' . $attribute->attribute_name . '">' . $attribute->attribute_label . '</option>'; } ?> </select> </td> </tr> </table> <?php submit_button('Apply Discount'); ?> </form> </div> <?php } // Logika za primjenu popusta na proizvodima s odabranim atributom function apply_discount_by_attribute($discount_percentage, $product_attribute) { if ($discount_percentage && $product_attribute) { // Postavljamo argumente za upit $args = array( 'posts_per_page' => -1, 'post_type' => 'product', 'tax_query' => array( array( 'taxonomy' => 'pa_' . $product_attribute, 'field' => 'slug', 'terms' => $product_attribute, ), ), ); // Dohvaćamo proizvode s odabranim atributom $products = new WP_Query($args); // Iteriramo kroz pronađene proizvode i primjenjujemo popust if ($products->have_posts()) { while ($products->have_posts()) { $products->the_post(); global $product; // Dohvaćamo Regular price proizvoda $regular_price = $product->get_regular_price(); // Računamo novu cijenu primjenom popusta $new_price = $regular_price * (1 - ($discount_percentage / 100)); // Postavljanje nove cijene u Sale price $product->set_sale_price($new_price); $product->save(); } } wp_reset_postdata(); } }
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