过滤商品

app/Endpoint/Api/Filters/ProductSkuFilter.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Endpoint\Api\Filters;
+
+use App\Models\ProductCategory;
+use EloquentFilter\ModelFilter;
+
+class ProductSkuFilter extends ModelFilter
+{
+    /**
+     * 按商品分类搜索商品
+     *
+     * @param int $id
+     */
+    public function category($id)
+    {
+        $category = ProductCategory::showable()->find($id);
+
+        if ($category === null) {
+            return $this->whereRaw('1=0');
+        }
+
+        $ids = $category->descendants()->showable()->pluck('id');
+
+        if ($ids->isEmpty()) {
+            $this->where('category_id', $id);
+        } else {
+            $this->whereIn('category_id', $ids);
+        }
+    }
+
+    /**
+     * 关键字搜索商品
+     *
+     * @param string $keyword
+     */
+    public function keyword($keyword)
+    {
+        $this->whereLike('name', $keyword);
+    }
+
+    /**
+     * 商品排序
+     *
+     * @param string $sort
+     */
+    public function sort($sort)
+    {
+        $column = str_ireplace('-', '', $sort);
+
+        if (in_array($column, ['price', 'sales', 'release_at'])) {
+            if ($column === 'price') {
+                $column = 'sell_price';
+            }
+
+            return $this->orderBy($column, strpos($sort, '-') === 0 ? 'desc' : 'asc');
+        }
+
+        $this->orderBy('id', 'desc');
+    }
+}

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

@@ -0,0 +1,90 @@
+<?php
+
+namespace App\Endpoint\Api\Http\Controllers;
+
+use App\Endpoint\Api\Http\Resources\ProductSku\ProductSkuSimpleResource;
+use App\Models\ProductPart;
+use App\Models\ProductPartSku;
+use App\Models\ProductSku;
+use Illuminate\Http\Request;
+use Illuminate\Pagination\Paginator;
+
+class ProductController extends Controller
+{
+    /**
+     * 商品列表
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function index(Request $request)
+    {
+        return ProductSkuSimpleResource::collection(
+            $request->filled('part')
+                ? $this->filterProductsByPart($request)
+                : $this->filterProducts($request)
+        );
+    }
+
+    /**
+     * 过滤商品
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Pagination\Paginator
+     */
+    protected function filterProducts(Request $request): Paginator
+    {
+        $input = $request->input();
+
+        if ($request->isNotFilled('sort')) {
+            $input['sort'] = '-id';
+        }
+
+        return ProductSku::select(['id', 'name', 'cover', 'sell_price', 'vip_price', 'sales'])
+                        ->filter($input)
+                        ->isRelease()
+                        ->whereRelation('category', 'is_show', true)
+                        ->simplePaginate($this->getPerPage($request));
+    }
+
+    /**
+     * 按分区过滤商品
+     *
+     * @param \Illuminate\Http\Request $request
+     * @return \Illuminate\Pagination\Paginator
+     */
+    protected function filterProductsByPart(Request $request): Paginator
+    {
+        $productPart = ProductPart::where('key', $request->input('part'))->first();
+
+        if ($productPart === null) {
+            return new Paginator([], $this->getPerPage($request), Paginator::resolveCurrentPage());
+        }
+
+        $paginator = ProductPartSku::with('sku:id,name,cover,sell_price,vip_price,sales')
+                                    ->whereHas('sku', function ($query) {
+                                        $query->isRelease()->whereRelation('category', 'is_show', true);
+                                    })
+                                    ->where('part_id', $productPart->id)
+                                    ->latest('sort')
+                                    ->simplePaginate($this->getPerPage($request));
+
+        return $paginator->through(function ($item) {
+            return $item->sku;
+        });
+    }
+
+    /**
+     * @return int
+     */
+    protected function getPerPage(Request $request): int
+    {
+        $perPage = (int) $request->input('per_page');
+
+        if ($perPage > 0) {
+            return $perPage > 50 ? 50 : $perPage;
+        }
+
+        return 20;
+    }
+}

app/Endpoint/Api/Http/Resources/ProductSku/ProductSkuSimpleResource.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Endpoint\Api\Http\Resources\ProductSku;
+
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ProductSkuSimpleResource 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,
+            'name' => $this->name,
+            'cover' => (string) $this->cover,
+            'sell_price' => (string) $this->sell_price,
+            'vip_price' => (string) $this->vip_price,
+            'sales' => (string) $this->sales,
+        ];
+    }
+}

app/Endpoint/Api/routes.php

@@ -5,6 +5,7 @@ use App\Endpoint\Api\Http\Controllers\CaptchaController;
 use App\Endpoint\Api\Http\Controllers\LoginController;
 use App\Endpoint\Api\Http\Controllers\LogoutController;
 use App\Endpoint\Api\Http\Controllers\ProductCategoryController;
+use App\Endpoint\Api\Http\Controllers\ProductController;
 use App\Endpoint\Api\Http\Controllers\RegisterController;
 use App\Endpoint\Api\Http\Controllers\SmsCodeController;
 use Illuminate\Support\Facades\Route;
@@ -27,4 +28,5 @@ Route::group([
     Route::get('ads', [AdController::class, 'index']);
 
     Route::get('product-categories', [ProductCategoryController::class, 'index']);
+    Route::get('products', [ProductController::class, 'index']);
 });

app/Models/ProductCategory.php

@@ -17,13 +17,34 @@ class ProductCategory extends Model
     use ModelTree;
     use HasDateTimeFormatter;
 
-    protected $table = 'product_categories';
+    /**
+     * @var array
+     */
+    protected $attributes = [
+        'is_show' => false,
+        'is_recommend' => false,
+        'sort' => 0,
+    ];
 
+    /**
+     * @var array
+     */
     protected $casts = [
         'is_show' => 'boolean',
         'is_recommend' => 'boolean',
     ];
 
+    /**
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+        'icon',
+        'is_show',
+        'is_recommend',
+        'sort',
+    ];
+
     // 排序字段名称，默认值为 order
     protected $orderColumn = 'sort';