前言
本文主要给大家介绍的是关于laravel 5.4中实现无限级分类的相关内容,分享出来供有需要的朋友们参考学习,下面话不多说,来一起看看详细的介绍吧。
方法如下:
1、建立表
php artisan make:migration create_category_table --create=category
在database/migrations/下找到你的迁移文件
建入:
<?php
use IlluminateSupportFacadesSchema;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;
class CreateCategoryTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('categorys', function (Blueprint $table) {
$table->increments('id');
$table->integer('parent_id');
$table->string('code');
$table->string('name');
$table->string('path');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('categorys');
}
}
php artisan migrate2、建Model 在app/Category.php
php artisan make: model Category -m
<?php
namespace App;
use IlluminateDatabaseEloquentModel;
class Category extends Model
{
public function childCategory() {
return $this->hasMany('AppCategory', 'parent_id', 'id');
}
public function allChildrenCategorys()
{
return $this->childCategory()->with('allChildrenCategorys');
}
}3、调用
$categorys = App/Category::with('allChildrenCategorys')->first();或
$categorys->allChildrenCategorys;
或
$categorys->allChildrenCategorys->first()->allChildrenCategorys;
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