Enhance product management and coupon features

- Added styling for input group add-ons and additional fields in SCSS.
- Updated shop coupon view to include a new column for usage count.
- Display coupon code and amount in order details if applicable.
- Improved product edit template to handle custom fields with required validation.
- Modified product save logic to include custom field requirements.
- Enhanced decimal normalization function for better input handling.
- Implemented checkbox normalization for form submissions.
- Updated custom fields in product templates to reflect required status.
- Fixed URL for fetching changelog updates.

templates/shop-product/_partial/product-custom-fields.php

@@ -4,7 +4,7 @@
       <?= $custom_field['name'];?>:
     </div>
     <div class="_input">
-      <input type="text" class="form-control" name="custom_field[<?= $custom_field['id_additional_field'];?>]" field_name="<?= $custom_field['name'];?>" value="">
+      <input type="text" class="form-control" name="custom_field[<?= $custom_field['id_additional_field'];?>]" field_name="<?= $custom_field['name'];?>" value="" <? if ( !empty( $custom_field['is_required'] ) ): ?>required<? endif; ?>>
     </div>
   </div>
 <? endforeach; endif;?>

templates/shop-product/product.php

@@ -255,22 +255,24 @@
 <script class="footer" type="text/javascript" src="/libraries/fancybox3/js/wheel.js"></script>
 <script class="footer" type="text/javascript" src="/plugins/OwlCarousel/owl.carousel.js"></script>
 <script type="text/javascript">
-  <? if ( $this -> settings['google_tag_manager_id'] ):?>
-    dataLayer.push({ ecommerce: null });
-    dataLayer.push({
-      event: "view_item",
-      ecommerce: {
-        items: [
-          {
-            item_id: "<?= $this -> product -> id;?>",
-            item_name: "<?= str_replace( '"', '', $this -> product -> language['name'] );?>",
-            price: '<? if ( $this -> product -> price_brutto_promo ): echo \S::normalize_decimal( $this -> product -> price_brutto_promo ); else: echo \S::normalize_decimal( $this -> product -> price_brutto ); endif;?>',
-            quantity: 1
-          }
-        ]
-      }
-    });
-  <? endif;?>
+  $(function(){
+    <? if ( $this -> settings['google_tag_manager_id'] ):?>
+      dataLayer.push({ ecommerce: null });
+      dataLayer.push({
+        event: "view_item",
+        ecommerce: {
+          items: [
+            {
+              item_id: "<?= $this -> product -> id;?>",
+              item_name: "<?= str_replace( '"', '', $this -> product -> language['name'] );?>",
+              price: '<? if ( $this -> product -> price_brutto_promo ): echo \S::normalize_decimal( $this -> product -> price_brutto_promo ); else: echo \S::normalize_decimal( $this -> product -> price_brutto ); endif;?>',
+              quantity: 1
+            }
+          ]
+        }
+      });
+    <? endif;?>
+  });
 </script>
 <script class="footer" type="text/javascript">
   $( function ()
@@ -524,7 +526,7 @@
       }
 
       // dodatkowe pola muszą być uzupełnione
-      $( '.custom-field input' ).each( function( index, element )
+      $( '.custom-field input[required]' ).each( function( index, element )
       {
         if ( $.trim( $( element ).val() ) == '' )
         {