product attributes on edit product

src/Controller/ProductsController.php

@@ -107,9 +107,16 @@ class ProductsController extends AppController
     public function edit($id = null)
     {
         $productsTable = $this->getTable();
-        $product = $productsTable->get($id, contain: []);
+        $product = $productsTable->get($id, contain: [
+            'ProductAttributes',
+            'ProductAttributes.ProductCategoryAttributes',
+            'ProductAttributes.ProductCategoryAttributes.ProductCategoryAttributeOptions',
+        ]);
         if ($this->request->is(['patch', 'post', 'put'])) {
-            $product = $productsTable->patchEntity($product, $this->request->getData());
+            $saveOptions = [
+                'associated' => ['ProductAttributes'],
+            ];
+            $product = $productsTable->patchEntity($product, $this->request->getData(), $saveOptions);
             if ($productsTable->save($product)) {
                 $this->Flash->success(__('The product has been saved.'));
 
@@ -122,6 +129,7 @@ class ProductsController extends AppController
         $productCategory = $product->product_category_id ? $productsTable->ProductCategories->find()->where(['internal_id' => $product->product_category_id])->first() : null;
         $productCatalogs = $productsTable->ProductCategories->ProductCatalogs->find('list')->toArray();
         $this->set(compact('product', 'productCatalogs', 'productCategory'));
+
     }
 
     /**

templates/element/ProductCategoryAttributes/product_form.php

@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * @var int $cnt
+ * @var \App\Model\Entity\ProductCategoryAttribute|\Cake\Datasource\EntityInterface $productCategoryAttribute
+ * @var \App\Model\Entity\ProductAttribute|\Cake\Datasource\EntityInterface|null $productAttribute
+ */
+
+use Cake\Utility\Hash;
+use CakeProducts\Model\Enum\ProductCategoryAttributeTypeId;
+
+if (($productAttribute ?? false)) {
+    echo $this->Form->hidden('product_attributes.' . $cnt . '.id', ['value' => $productAttribute->id]);
+}
+echo $this->Form->hidden('product_attributes.' . $cnt . '.product_category_attribute_id', [
+    'value' => $productCategoryAttribute->id,
+]);
+$inputType = 'text';
+$options = [];
+if ($productCategoryAttribute->attribute_type_id === ProductCategoryAttributeTypeId::Integer) {
+    $inputType = 'number';
+}
+if ($productCategoryAttribute->attribute_type_id === ProductCategoryAttributeTypeId::Constrained) {
+    echo $this->Form->hidden('product_attributes.' . $cnt . '.attribute_value', [
+        'value' => '',
+    ]);
+    $options = !empty($productCategoryAttribute->product_category_attribute_options) ?
+        Hash::combine($productCategoryAttribute->product_category_attribute_options, '{n}.id', '{n}.attribute_label') :
+        [];
+    echo $this->Form->control('product_attributes.' . $cnt . '.product_category_attribute_option_id', [
+        'type' => 'select',
+        'label' => $productCategoryAttribute->name,
+        'options' => $options,
+        'value' => $productAttribute->product_category_attribute_option_id ?? '',
+    ]);
+} else {
+    echo $this->Form->control('product_attributes.' . $cnt . '.attribute_value', [
+        'type' => $inputType,
+        'label' => $productCategoryAttribute->name,
+    ]);
+}
+?>

templates/element/Products/form.php

@@ -40,15 +40,32 @@ echo $this->Form->control('product_type_id');
 ?>
 <hr>
 <h4 class="mb-4">Product Attributes</h4>
-<div id="product-attributes-container" class="container">
-    <?php if (false && $product->hasValue('product_attributes')) : ?>
-    <?php
+<div
+        id="product-attributes-container"
+        class="container"
+    <?php if ($product->isNew()) : ?>
+
+        hx-get="<?= $this->Url->build([
+            'controller' => 'ProductCategoryAttributes',
+            'action' => 'form',
+        ]); ?>"
+        hx-trigger="change target:#product_category_id from:body"
+        hx-target="this"
+        hx-include="#form, #product_category_id"
+        hx-swap="innerHTML"
+    <?php endif; ?>
+>
+    <?php if ($product->hasValue('product_attributes')) : ?>
+        <?php
         $cnt = 0;
         foreach ($product->product_attributes as $productAttribute) {
             $prefix = 'product_attributes.' . $cnt . '.';
 
-            echo '<hr class="my-2">';
-
+            echo $this->element('ProductCategoryAttributes/product_form', [
+                'productCategoryAttribute' => $productAttribute->hasValue('product_category_attribute') ? $productAttribute->product_category_attribute : null,
+                'productAttribute' => $productAttribute,
+                'cnt' => $cnt,
+            ]);
             $cnt++;
         } ?>
     <?php endif; ?>