我需要知道如何使用 laravel 中的资源控制器将数据从数据库检索到多个页面

Question

由于我是 Laravel 的新手，这是我的第一个 Laravel 项目。

这是我的控制器。

ProductsController.php

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
use App\Product;
use App\Category;

class ProductsController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
         $arr['products'] = Product::all();
        return view('admin.products.index')->with($arr);

       $productsAll = Product::get();
       return view ('index')->with(compact('productsAll'));
      
      
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        return view('admin.products.create');
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request, Product $product, Category $category)
    {

        if($request->prod_image_path->getClientOriginalName())
        {
            $ext =$request->prod_image_path->getClientOriginalName();
            $file = date('YmdHis').rand(1,99999).'.'.$ext;
            $request->prod_image_path->storeAs('public/admin',$file);
        }else{
            $file ='';
        }

        $product-> prod_name = $request-> prod_name;
        $product-> prod_meta_title = $request-> prod_meta_title;
        $product-> prod_description = $request-> prod_description;
        $product-> prod_category = $request-> prod_category;
        $product-> prod_price = $request-> prod_price;
        $product-> prod_discount = $request-> prod_discount;
        $product-> prod_image_path = $file;
        $product->save();
        return redirect()->route('admin.products.index');
       
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit(Product $product)
    {
        $arr['product'] = $product;
        return view('admin.products.edit')->with($arr);

    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, Product $product)
    {
        if($request->prod_image_path->getClientOriginalName())
        {
            $ext =$request->prod_image_path->getClientOriginalName();
            $file = date('YmdHis').rand(1,99999).'.'.$ext;
            $request->prod_image_path->storeAs('public/admin',$file);
        }else{
            $file ='';
        }
        $product-> prod_name = $request-> prod_name;
        $product-> prod_meta_title = $request-> prod_meta_title;
        $product-> prod_description = $request-> prod_description;
        $product-> prod_category = $request-> prod_category;
        $product-> prod_price = $request-> prod_price;
        $product-> prod_discount = $request-> prod_discount;
        $product-> prod_image_path = $file;
        $product->save();
        return redirect()->route('admin.products.index');
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
       Product:: destroy($id);
       return redirect()->route('admin.products.index');
    }
}

为了在 admin.products 页面中查看，我使用了下面的代码。

  public function index()
        {
          
         $arr['products'] = Product::all();
        return view('admin.products.index')->with($arr);
        }

为了在索引页面中查看，我使用了下面的代码。

public function index()
        {
       $productsAll = Product::get();
        return view ('index')->with(compact('productsAll'));
        }

如何在索引函数中同时使用这两个函数。或者解决这个问题的好习惯是什么？

这是我的索引页。

index.blade.php

 @foreach($productsAll as $p)    
                                    <a href="../shop/product-categories-7-column-full-width.html" class="d-block py-2 text-center">
                                            <img class="img-fluid mb-1 max-width-100-sm" src="{{ asset('assets/img/300X300/img6.jpg')}}" alt="Image Description">
                                            <h6 class="font-size-14 mb-0 atext font-weight-semi-bold">{{ $p -> prod_name }}</h6>
                                        </a>
                                    </li>
                                    @endforeach

Answer 1

我认为有两种可能的方法：

1. 使用其他方法扩展当前控制器（例如indexAdmin）

    public function index()
    {
       $productsAll = Product::get();
       return view ('index')->with(compact('productsAll'));
    }

    public function indexAdmkn()
    {
        $arr['products'] = Product::all();
        return view('admin.products.index')->with($arr);
    }

1. 遵守resource controller principle 并为您的管理员创建一个单独的控制器（例如ProductsAdminController）

顺便说一句，如果你是 Laravel 的新手，我强烈推荐 Laracasts。他们也有免费的培训视频。例如。 this one 在控制器上。