first test passing

src/Controller/CartItemsController.php

@@ -26,6 +26,9 @@ class CartItemsController extends AppController
             // component work only for specified methods.
             'actions' => ['add'],
         ]);
+        if ($this->components()->has('Authorization')) {
+            $this->Authorization->skipAuthorization();
+        }
     }
 
     /**
@@ -36,7 +39,6 @@ class CartItemsController extends AppController
     public function add()
     {
         $this->request->allowMethod(['post', 'put', 'patch']);
-        $this->Authorization->skipAuthorization();
 
         Log::debug(print_r('$this->request->getData()', true));
         Log::debug(print_r($this->request->getData(), true));
@@ -49,11 +51,11 @@ class CartItemsController extends AppController
         $postData['price'] = $price;
         $postData['subtotal'] = isset($price) ? bcmul("$price", "$qty", 5) : null;
 
-        $newCartItem = $this->Carts->CartItems->newEntity($postData, [
+        $newCartItem = $this->CartItems->newEntity($postData, [
             'validate' => Configure::readOrFail('CakeCarts.CartItems.requirePricing') ? 'requirePricing' : 'default',
         ]);
 
-        if ($this->Carts->CartItems->save($newCartItem)) {
+        if ($this->CartItems->save($newCartItem)) {
             $this->Flash->success('Added to cart');
 
             return $this->redirect($this->referer([
@@ -62,9 +64,9 @@ class CartItemsController extends AppController
                 'action' => 'index'
             ]));
         }
-        Log::debug(print_r('$newCartItem->getErrors()', true));
-        Log::debug(print_r($newCartItem->getErrors(), true));
-
+//        Log::debug(print_r('$newCartItem->getErrors()', true));
+//        Log::debug(print_r($newCartItem->getErrors(), true));
+        dd(print_r($newCartItem->getErrors(), true));
         $this->Flash->error('Failed to add to cart.');
 
         return $this->redirect($this->referer([
@@ -91,7 +93,6 @@ class CartItemsController extends AppController
             ->firstOrFail();
 
         $this->ShoppingCart->checkIfIsOwnCart($cartItem->cart);
-        $this->Authorization->skipAuthorization();
 
         if ($this->request->is(['patch', 'post', 'put'])) {
             $postData = $this->request->getData();
@@ -142,7 +143,6 @@ class CartItemsController extends AppController
             ->firstOrFail();
 
         $this->ShoppingCart->checkIfIsOwnCart($cartItem->cart);
-        $this->Authorization->skipAuthorization();
 
         unset($cartItem->cart);
         if ($this->CartItems->delete($cartItem)) {

src/Model/Table/CartItemsTable.php

@@ -59,9 +59,17 @@ class CartItemsTable extends Table
     public function validationDefault(Validator $validator): Validator
     {
         $validator
-            ->uuid('product_sku_id')
-            ->requirePresence('product_sku_id', 'create')
-            ->notEmptyString('product_sku_id');
+            ->scalar('foreign_key')
+            ->allowEmptyString('foreign_key');
+
+        $validator
+            ->uuid('foreign_key_uuid')
+            ->allowEmptyString('foreign_key_uuid');
+
+        $validator
+            ->scalar('model')
+            ->requirePresence('model', 'create')
+            ->notEmptyString('model');
 
         $validator
             ->uuid('cart_id')