购物车管理

app/Endpoint/Api/Http/Controllers/ShoppingCartItemController.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace App\Endpoint\Api\Http\Controllers;
+
+use App\Endpoint\Api\Http\Resources\ShoppingCartItemResource;
+use App\Exceptions\BizException;
+use App\Models\ProductSku;
+use Illuminate\Http\Request;
+
+class ShoppingCartItemController extends Controller
+{
+    /**
+     * 购物车商品列表
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function index(Request $request)
+    {
+        $items = $request->user()->shoppingCartItems()->with(['sku'])->has('sku')->latest('id')->get();
+
+        return ShoppingCartItemResource::collection($items);
+    }
+
+    /**
+     * 添加购物车商品
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        $input = $request->validate([
+            'sku_id' => ['bail', 'required'],
+            'qty' => ['bail', 'required', 'int', 'min:1'],
+        ]);
+
+        $sku = ProductSku::whereRelation('category', 'is_show', true)->online()->find($input['sku_id']);
+
+        if ($sku === null) {
+            throw new BizException(__('Product has been removed'));
+        }
+
+        $item = $request->user()->shoppingCartItems()->firstOrCreate([
+            'sku_id' => $sku->id,
+        ], [
+            'qty' => $input['qty'],
+        ]);
+
+        if (! $item->wasRecentlyCreated) {
+            $item->increment('qty', $input['qty']);
+        }
+
+        return response()->noContent();
+    }
+
+    /**
+     * 修改购物车商品
+     *
+     * @param int $id
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\Response
+     */
+    public function update($id, Request $request)
+    {
+        $input = $request->validate([
+            'qty' => ['bail', 'required', 'int', 'min:1'],
+        ]);
+
+        $item = $request->user()->shoppingCartItems()->find($id);
+
+        if ($item === null) {
+        }
+
+        $item->update($input);
+
+        return response()->noContent();
+    }
+
+    /**
+     * 删除购物车商品
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\Response
+     */
+    public function delete(Request $request)
+    {
+        $input = $request->validate([
+            'ids' => ['bail', 'required', 'array'],
+        ]);
+
+        $request->user()->shoppingCartItems()->whereIn('id', $input['ids'])->delete();
+
+        return response()->noContent();
+    }
+}

app/Endpoint/Api/Http/Resources/ShoppingCartItemResource.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace App\Endpoint\Api\Http\Resources;
+
+use App\Endpoint\Api\Http\Resources\ProductSku\ProductSkuSimpleResource;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ShoppingCartItemResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
+     */
+    public function toArray($request)
+    {
+        return [
+            'id' => $this->id,
+            'sku' => ProductSkuSimpleResource::make($this->whenLoaded('sku')),
+            'qty' => $this->qty,
+        ];
+    }
+}

app/Endpoint/Api/routes.php

@@ -13,6 +13,7 @@ use App\Endpoint\Api\Http\Controllers\Product\ProductCategoryController;
 use App\Endpoint\Api\Http\Controllers\Product\ProductSkuController;
 use App\Endpoint\Api\Http\Controllers\Product\ProductSkuFavoriteController;
 use App\Endpoint\Api\Http\Controllers\Product\ProductViewLogController;
+use App\Endpoint\Api\Http\Controllers\ShoppingCartItemController;
 use App\Endpoint\Api\Http\Controllers\SmsCodeController;
 use Illuminate\Support\Facades\Route;
 
@@ -58,5 +59,11 @@ Route::group([
         Route::get('product/view-logs', [ProductViewLogController::class, 'index']);
         // 商品收藏记录
         Route::get('product/favorites', [ProductSkuFavoriteController::class, 'index']);
+
+        // 购物车
+        Route::get('shopping-cart-items', [ShoppingCartItemController::class, 'index']);
+        Route::post('shopping-cart-items', [ShoppingCartItemController::class, 'store']);
+        Route::delete('shopping-cart-items', [ShoppingCartItemController::class, 'delete']);
+        Route::put('shopping-cart-items/{shopping_cart_item}', [ShoppingCartItemController::class, 'update']);
     });
 });

app/Models/ShoppingCartItem.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ShoppingCartItem extends Model
+{
+    /**
+     * @var array
+     */
+    protected $casts = [
+        'qty' => 'int',
+    ];
+
+    /**
+     * @var array
+     */
+    protected $fillable = [
+        'user_id',
+        'sku_id',
+        'qty',
+    ];
+
+    /**
+     * 此购物车物品所属的商品
+     */
+    public function sku()
+    {
+        return $this->belongsTo(ProductSku::class);
+    }
+}

app/Models/User.php

@@ -79,11 +79,11 @@ class User extends Model implements AuthorizableContract, AuthenticatableContrac
     }
 
     /**
-     * 属于此用户的收货地址
+     * 属于此用户的购物车中的商品
      */
-    public function addresses()
+    public function shoppingCartItems()
     {
-        return $this->hasMany(Address::class);
+        return $this->hasMany(ShoppingCartItem::class);
     }
 
     /**

database/migrations/2021_12_06_171251_create_shopping_cart_items_table.php

@@ -0,0 +1,36 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateShoppingCartItemsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('shopping_cart_items', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('user_id')->comment('用户ID');
+            $table->unsignedBigInteger('sku_id')->comment('商品ID');
+            $table->unsignedInteger('qty')->default(0)->comment('购买数量');
+            $table->timestamps();
+
+            $table->unique(['user_id', 'sku_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('shopping_cart_items');
+    }
+}

resources/lang/zh_CN.json

@@ -6,6 +6,7 @@
     "Invalid verification code type": "无效的验证码类型",
     "Invalid old password": "原密码错误",
     "Inviter does not exist": "邀请人不存在",
+    "Product has been removed": "商品已下架",
     "Registration failed, please try again": "注册失败，请重试",
     "Sending too frequently, please try again later": "发送过于频繁，请稍后再试",
     "The phone number is already registered": "手机号码已被注册",