Question

我的产品总监。在这里，一个产品有很多图像。 Laravel在这里工作的一对多关系。当我创建新产品时，该产品有3,4张或许多张图片。产品图片表有两列，Product_id和Image Name。

$this->validate($request, [
            'name'=>'required',
            'model'=>'required',
            'brand'=>'required|numeric',
            'category'=>'required|numeric',
            'subcategory'=>'required|numeric',
            'quantity'=>'required|numeric',
            'price'=>'required|numeric',
            'description'=>'required',
            'feature_image'=>'required|image|max:3000',
            'product_images'=>'required|max:5000',
        ]);

        $image = $request->file('feature_image');
        $slug = Str::slug($request->name);
        $currentDate = Carbon::now()->toDateString();
        $tempName = $slug . '-' . $currentDate . '-' . uniqid() . '.' . $image->getClientOriginalExtension();
        $path = 'backend/images/product/';
        $imageName = $path . $tempName;
        $image->move($path, $imageName);
        $store_id = Store::where('user_id', Auth::id())->first();
        $product_id = Product::latest()->first();

        $product = new Product();
        $product->user_id = Auth::id();
        $product->store_id = $store_id->id;
        $product->brand_id = $request->brand;
        $product->category_id = $request->category;
        $product->subcategory_id = $request->subcategory;
        $product->name = $request->name;
        $product->slug = $slug;
        $product->model = $request->model;
        $product->description = $request->description;
        $product->quantity = $request->quantity;
        $product->quantity = $request->quantity;
        $product->price = $request->price;
        $product->discount = $request->discount;
        $product->feature_image = $imageName;
        $product->pending = true;
        $product->visible = true;
        foreach ($request->product_images as $data){
            $productImageTempName = $slug . '-' . $currentDate . '-' . uniqid() . '.' . $data->getClientOriginalExtension();
            $productImageName = $path . $productImageTempName;
            $data->move($path, $productImageName);

            $product_image = new ProductImage();
            $product_image->product_id = ????;
            $product_image->image = $productImageName;
            $product_image->save();
        }
        $product->save();
        return redirect()->route('admin.product.index')->with('success', 'Product Successfully Create');

现在如何在问号的位置获得产品ID。我需要当前正在创建的产品ID。

Answer 1

您应该在产品的图像之前保存产品，不仅要获得产品的ID，还要保存数据库的外键约束

而且您也应该在事务内进行以确保数据完整性

  // .....
  $product->visible = true;
        DB::transaction(function ()use($product,$request,$slug,$currentDate,$path){
            $product->save();
             foreach ($request->product_images as $data){
                 $productImageTempName = $slug . '-' . $currentDate . '-' . uniqid() . '.' . $data->getClientOriginalExtension();
                 $productImageName = $path . $productImageTempName;
                 $data->move($path, $productImageName);

                 $product_image = new ProductImage();
                 $product_image->product_id = $product->id;
            $product_image->image = $productImageName;
            $product_image->save();

        }

如何获取当前产品ID

1 个答案: