public function toPdtContent(Request $request, $product_id)
 {
     $product = Product::find($product_id);
     $pdt_content = PdtContent::where('product_id', $product_id)->first();
     $pdt_images = PdtImages::where('product_id', $product_id)->get();
     $count = 0;
     $member = $request->session()->get('member', '');
     if ($member != '') {
         $cart_items = CartItem::where('member_id', $member->id)->get();
         foreach ($cart_items as $cart_item) {
             if ($cart_item->product_id == $product_id) {
                 $count = $cart_item->count;
                 break;
             }
         }
     } else {
         $bk_cart = $request->cookie('bk_cart');
         $bk_cart_arr = $bk_cart != null ? explode(',', $bk_cart) : array();
         foreach ($bk_cart_arr as $value) {
             // 一定要传引用
             $index = strpos($value, ':');
             if (substr($value, 0, $index) == $product_id) {
                 $count = (int) substr($value, $index + 1);
                 break;
             }
         }
     }
     return view('pdt_content')->with('product', $product)->with('pdt_content', $pdt_content)->with('pdt_images', $pdt_images)->with('count', $count);
 }
 public function productAdd(Request $request)
 {
     $name = $request->input('name', '');
     $summary = $request->input('summary', '');
     $price = $request->input('price', '');
     $category_id = $request->input('category_id', '');
     $preview = $request->input('preview', '');
     $content = $request->input('content', '');
     $preview1 = $request->input('preview1', '');
     $preview2 = $request->input('preview2', '');
     $preview3 = $request->input('preview3', '');
     $preview4 = $request->input('preview4', '');
     $preview5 = $request->input('preview5', '');
     $product = new Product();
     $product->summary = $summary;
     $product->price = $price;
     $product->category_id = $category_id;
     $product->preview = $preview;
     $product->name = $name;
     $product->save();
     $pdt_content = new PdtContent();
     $pdt_content->product_id = $product->id;
     $pdt_content->content = $content;
     $pdt_content->save();
     if ($preview1 != '') {
         $pdt_images = new PdtImages();
         $pdt_images->image_path = $preview1;
         $pdt_images->image_no = 1;
         $pdt_images->product_id = $product->id;
         $pdt_images->save();
     }
     if ($preview2 != '') {
         $pdt_images = new PdtImages();
         $pdt_images->image_path = $preview2;
         $pdt_images->image_no = 2;
         $pdt_images->product_id = $product->id;
         $pdt_images->save();
     }
     if ($preview3 != '') {
         $pdt_images = new PdtImages();
         $pdt_images->image_path = $preview3;
         $pdt_images->image_no = 3;
         $pdt_images->product_id = $product->id;
         $pdt_images->save();
     }
     if ($preview4 != '') {
         $pdt_images = new PdtImages();
         $pdt_images->image_path = $preview4;
         $pdt_images->image_no = 4;
         $pdt_images->product_id = $product->id;
         $pdt_images->save();
     }
     if ($preview5 != '') {
         $pdt_images = new PdtImages();
         $pdt_images->image_path = $preview5;
         $pdt_images->image_no = 5;
         $pdt_images->product_id = $product->id;
         $pdt_images->save();
     }
     $m3_result = new M3Result();
     $m3_result->status = 0;
     $m3_result->message = '添加成功';
     return $m3_result->toJson();
 }