laravel7学习之无限级分类的最新实现方法_php实例_

 # -a 其实就是all，创建包含模型，控制器(资源)，数据迁移文件（工厂模型、seed） php artisan make:model -a Category 

 Schema::create('categories', function (Blueprint $table) { $table->id(); $table->string('title', 100)->comment('分类名称'); $table->string('name', 100)->comment('分类标识'); $table->string('description', 255)->nullable()->comment('分类描述'); $table->integer('pid')->default(0)->comment('分类id'); $table->integer('level')->default(1)->comment('分类层级'); $table->integer('sort')->default(0)->comment('排序'); $table->integer('status')->default(1)->comment('状态：0-禁用，1-正常'); $table->timestamps(); }); 

 php artisan migrate 

 //App\Models\Category.php public function categories() { return $this->hasMany(self::class, 'pid', 'id')->with('categories'); } 

 //app\Http\controllers\CategooryController.php # use模型 use App\Models\Category; public function index() { $categories = Category::with('categories')->where('pid', 0)->get(); return view('category.index', compact('categories')); } 

 Route::get('category', 'CategoryController@index'); 

 @foreach ($categories as $category)  @foreach ($category->categories as $childCategory) @include('category.child_category', ['child_category' => $childCategory]) @endforeach @endforeach 
编号
分类名称
分类标识
分类描述
创建时间
状态
操作
{{ $category->id }}
{{ $category->title }}
{{ $category->name }}
{{ $category->description }}
{{ $category->created_at }}
{{ $category->status }}

{{ $child_category->id }}|{{ str_repeat('--',$child_category->level-1) }} {{ $child_category->title }}{{ $child_category->name }}{{ $child_category->description }}{{ $child_category->created_at }}{{ $child_category->status }} @if ($child_category->categories) @foreach ($child_category->categories as $childCategory) @include('category.child_category', ['child_category' => $childCategory]) @endforeach @endif