hainan/app/AdminAgent/Actions/Tree/LoadSystemCategory.php

<?php

namespace App\AdminAgent\Actions\Tree;

use App\Models\Category;
use Dcat\Admin\Actions\Response;
use Dcat\Admin\Admin;
use Dcat\Admin\Traits\HasPermissions;
use Dcat\Admin\Tree\AbstractTool;
use Illuminate\Contracts\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Http\Request;

class LoadSystemCategory extends AbstractTool
{
    /**
     * @return string
     */
	protected $title = '导入系统分类';

    /**
     * Handle the action request.
     *
     * @param Request $request
     *
     * @return Response
     */
    public function handle(Request $request)
    {
		$system_cate = Category::where('agent_id', 0)->orderBy('pid')->get();
		$system_name = $system_cate->pluck('name')->toArray();

		$own_cate = Category::where('agent_id', Admin::user()->id)->get();
		$own_name = $own_cate->pluck('name')->toArray();

		$no_name = array_diff($system_name, $own_name); //找到系统有，但自己没有的分类名
		$max_id = Category::where('agent_id', Admin::user()->id)->max('id');

		Category::insert(array_map(function ($name) {
			return [
				'agent_id' => Admin::user()->id,
				'name' => $name,
				'pid' => 0,
				'sort' => 255,
			];
		}, $no_name));

		$own_cate = Category::where('agent_id', Admin::user()->id)->orderBy('id')->get(); //获取所有分类，包含新插入的分类
		$system_pid = $system_cate->pluck('pid', 'name')->toArray(); //获取原来系统的PID
		$own_id = $own_cate->pluck('id', 'name')->toArray(); //获取自己的PID，不考虑name重复的情况

		foreach ($own_cate as $cate) {
			//不是新插入的分类不处理
			if ($cate->id <= $max_id) continue;

			//如果原来系统PID不是0，则获取父类的名称，并在自己的分类中获取对应名称ID，再设置父分类
			$sys_pid = $system_pid[$cate['name']];
			if ($sys_pid != 0) {
				$sys_pid_name = $system_cate->find($sys_pid)['name'];

				$cate->pid = $own_id[$sys_pid_name];
				$cate->save();
			}
		}

        return $this->response()->success('操作成功！')->refresh();
    }

    /**
     * @return string|void
     */
    protected function href()
    {
        // return admin_url('auth/users');
    }

    /**
	 * @return string|array|void
	 */
	public function confirm()
	{
		 return ['操作确认', '确定要导入系统分类吗？'];
	}

    /**
     * @param Model|Authenticatable|HasPermissions|null $user
     *
     * @return bool
     */
    protected function authorize($user): bool
    {
        return true;
    }
}