库存不足

beike/Shop/Http/Controllers/CartController.php

@@ -3,6 +3,7 @@
 namespace Beike\Shop\Http\Controllers;
 
 use Beike\Models\ProductSku;
+use Beike\Shop\Http\Requests\CartRequest;
 use Illuminate\Http\Request;
 use Illuminate\Contracts\View\View;
 use Beike\Shop\Services\CartService;
@@ -84,11 +85,11 @@ class CartController extends Controller
     /**
      * 创建购物车
      *
-     * @param Request $request
+     * @param CartRequest $request
      * @return mixed
      * @throws \Exception
      */
-    public function store(Request $request)
+    public function store(CartRequest $request)
     {
         $skuId = $request->sku_id;
         $quantity = $request->quantity ?? 1;

beike/Shop/Http/Requests/CartRequest.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * CartRequest.php
+ *
+ * @copyright  2022 opencart.cn - All Rights Reserved
+ * @link       http://www.guangdawangluo.com
+ * @author     Edward Yang <yangjin@opencart.cn>
+ * @created    2022-08-26 14:21:32
+ * @modified   2022-08-26 14:21:32
+ */
+
+namespace Beike\Shop\Http\Requests;
+
+use Beike\Models\ProductSku;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class CartRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        $skuId = (int)$this->get('sku_id');
+
+        return [
+            'sku_id' => 'required|int',
+            'quantity' => ['required', 'int', function ($attribute, $value, $fail) use ($skuId) {
+                $skuQuantity = ProductSku::query()->where('id', $skuId)->value('quantity');
+                if ($value > $skuQuantity) {
+                    $fail(trans('cart.stock_out'));
+                }
+            }],
+            'buy_now' => 'bool'
+        ];
+    }
+
+    public function attributes()
+    {
+        return [
+            'sku_id' => trans('cart.sku_id'),
+            'quantity' => trans('cart.quantity'),
+        ];
+    }
+}

resources/lang/en/cart.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * cart.php
+ *
+ * @copyright  2022 opencart.cn - All Rights Reserved
+ * @link       http://www.guangdawangluo.com
+ * @author     Edward Yang <yangjin@opencart.cn>
+ * @created    2022-08-26 15:25:29
+ * @modified   2022-08-26 15:25:29
+ */
+
+return [
+    'stock_out' => 'Stock Out',
+];

resources/lang/zh_cn/cart.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * cart.php
+ *
+ * @copyright  2022 opencart.cn - All Rights Reserved
+ * @link       http://www.guangdawangluo.com
+ * @author     Edward Yang <yangjin@opencart.cn>
+ * @created    2022-08-26 15:25:29
+ * @modified   2022-08-26 15:25:29
+ */
+
+return [
+    'stock_out' => '库存不足',
+];