subscribtion category variants / system category variants

src/Model/Entity/ProductCategoryVariant.php

@@ -14,6 +14,7 @@ use Cake\ORM\Entity;
  * @property string|null $product_category_id
  * @property string|null $product_id
  * @property bool $enabled
+ * @property bool $is_system_variant
  *
  * @property ProductCategory|EntityInterface $product_category
  * @property ProductCategoryVariantOption[]|EntityInterface[] $product_category_variant_options
@@ -34,6 +35,7 @@ class ProductCategoryVariant extends Entity
         'product_category_id' => true,
         'product_id' => true,
         'enabled' => true,
+        'is_system_variant' => true,
 
         // entities
         'product_category' => false,

src/Model/Table/ProductCategoryVariantsTable.php

@@ -70,6 +70,7 @@ class ProductCategoryVariantsTable extends Table
             'className' => 'CakeProducts.ProductCategoryVariantOptions',
             'dependent' => true,
             'cascadeCallbacks' => true,
+            'saveStrategy' => 'replace',
         ]);
 
         $this->hasMany('ProductVariants', [
@@ -102,6 +103,10 @@ class ProductCategoryVariantsTable extends Table
             ->uuid('product_id')
             ->allowEmptyString('product_id');
 
+        $validator
+            ->boolean('is_system_variant')
+            ->allowEmptyString('is_system_variant');
+
         $validator
             ->boolean('enabled')
             ->requirePresence('enabled', 'create')