hainan/app/AdminAgent/Forms/Setting.php

<?php

namespace App\AdminAgent\Forms;

use App\Models\AgentSetting;
use Dcat\Admin\Admin;
use Dcat\Admin\Widgets\Form;

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

		AgentSetting::updateOrCreate(
			['agent_id' => Admin::user()->id],
			['setting' => json_encode($input), 'agent_id' => Admin::user()->id],
		);

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

    /**
     * Build a form here.
     */
    public function form()
    {
        $this->text('earnest')->required()->help('用户支付订金、定金、首付款的金额');
        $this->text('earnest_timeout')->required()->help('单位：分钟。当通过订金、定金、首付款支付时，用户超过该时间未支付将关闭订单，且定金不退');
    }

    /**
     * The data of the form.
     *
     * @return array
     */
    public function default()
    {
		$setting = AgentSetting::where('agent_id', Admin::user()->id)->value('setting');
        return is_string($setting) ? json_decode($setting, true) : [];
    }
}