laravel admin实现分类树/模型树的示例代码

修改模型Category.php

<?php

namespace App\Admin\Models;

use Encore\Admin\Traits\AdminBuilder;
use Encore\Admin\Traits\ModelTree;
use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
use ModelTree, AdminBuilder;
protected $table = 'category';
public function __construct(array $attributes = [])
{
parent::__construct($attributes);
//这里根据自己的字段修改
$this->setParentColumn('parent_id');
$this->setOrderColumn('sort');
$this->setTitleColumn('name');
}
}

修改控制文件CategoryController.php

<?php

namespace App\Admin\Controllers;

use App\Admin\Models\Category;
use Encore\Admin\Controllers\AdminController;
use Encore\Admin\Facades\Admin;
use Encore\Admin\Layout\Content;
use Encore\Admin\Show;

class CategoryController extends AdminController
{
/**
* Title for current resource.
*
* @var string
*/
protected $title = '商品分类管理';
public function index(Content $content)
{
return Admin::content(function ($content) {
$content->header('商品分类管理');
$content->body(Category::tree(function ($tree) {
$tree->branch(function ($branch) {
$src = config('admin.upload.host') . 'http://www.jb51.net/' . $branch['image'];
$logo = "<img src='http://www.jb51.net/article/$src'/>";
return "{$branch['id']} - {$branch['name']} $logo";
});
}));
});
}
//下面是自己的代码
//.......
}

添加路由app/Admin/routes.php

$router->resource('categories',CategoryController::class);

select中使用分类树

$form->select('parent_id', __('Parent id'))->options(Category::selectOptions())->default(1);

总结

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