hainan/app/AdminAgent/Forms/AgentInfo.php

<?php

namespace App\AdminAgent\Forms;
use App\Models\AgentInfo as Model;
use Dcat\Admin\Admin;
use Dcat\Admin\Widgets\Form;

class AgentInfo extends Form
{
    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        // dump($input);

        $model = Model::query()->find(Admin::user()->id);
		$model->about = $input['about'];
		$model->reg_protocol = $input['reg_protocol'];
		$model->buy_protocol = $input['buy_protocol'];
		$model->save();

        return $this->response()->success('保存成功')->refresh();
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $this->editor('about')->required();
        $this->editor('reg_protocol')->required();
        $this->editor('buy_protocol')->required();
    }

    /**
     * The data of the form.
     *
     * @return array
     */
    public function default()
    {
        return Model::query()->find(Admin::user()->id)->toArray();
    }
}