Simple File Manage Design by index.php

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<?php

namespace App\Http\Controllers\Blog;

use App\Category;
use App\Http\Controllers\Controller;
use App\Post;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class CategoryController extends Controller
{
    public function index()
    {
        $categories = Category::orderBy('id', 'desc')->get();
        return view('blog.categories.index')->with([
            'categories' => $categories
        ]);
    }
    public function store(Request $request)
    {
        $rules = [
            "name" => 'required|unique:categories',
        ];
        $messages = [
            'name.required' => 'Category name is required!',
        ];
        $validator = Validator::make($request->all(), $rules, $messages);
        if ($validator->fails()) {
            return back()
                ->withErrors($validator)
                ->withInput();
        }
        $category = new Category();
        $category->name = $request->name;
        if ($category->save()) {
             toast('Category has been saved successfully!','success','top-right');
            return back();
        }
    }

/**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\Models\Category  $category
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, Category $category)
    {
        $rules = [
            "name" => 'required',
        ];
        $messages = [
            'name.required' => 'Category name is required!',
        ];
        $validator = Validator::make($request->all(), $rules, $messages);
        if ($validator->fails()) {
            return back()
                ->withErrors($validator)
                ->withInput();
        }
        $category = Category::find($request->id);
        $category->name = $request->name;
        if ($category->save()) {
    
             toast('Category has been updated successfully!','success','top-right');
            return back();
        }
    }

/**
     * Remove the specified resource from storage.
     *
     * @param  \App\Models\Category  $category
     * @return \Illuminate\Http\Response
     */
    public function destroy(Category $category, Request $request)
    {
        $category->find($request->id)->delete();

// find all posts and reset to uncategorized
        $posts = Post::where('category_id', $request->id)->get();
        if ($posts) {
            Post::where('category_id', $request->id)->update(['category_id' => 1]);
        }
        return response()->json([
            'success' => true
        ]);
    }
}