suryee-stat-tp6/app/controller/Seller.php

<?php
namespace app\controller;

use think\App;
use think\facade\View;
use app\model\Seller as SellerModel;
use app\model\Department as DepartmentModel;

class Seller extends Base
{
    protected $model;

    public function __construct(App $app)
    {
        parent::__construct($app);
        $this->model = new SellerModel();
    }

    public function index()
    {
        $list = $this->model->select();

        return View::fetch('',['list'=>$list]);
    }

    public function save()
    {
        $departmentModel = new DepartmentModel();
        $departments = $departmentModel->column('name', 'id');
        if ($this->request->isPost()) {
            $param = $this->request->param();
            
            try {
                if ($param['id']) {
                    $seller = $this->model->find(intval($param['id']));
                } else {
                    $seller = new SellerModel();
                    $seller->create_time = time();
                }
                $seller->name = $param['name'];
                $seller->department_id = $param['department_id'];
                $seller->department_name = $departments[$param['department_id']];
                
                $seller->save();
            } catch (\Exception $e) {
                $this->error($e->getMessage());
            }

            $this->success('操作成功', 'seller/index');
        } else {
            $id = $this->request->has('id','route') ? intval($this->request->param('id')) : 0;

            if ($id) {
                $data = $this->model->find($id);
            } else {
                $data = [
                    'id' => 0,
                    'name' => '',
                    'department_id' => 1,
                ];
            }
            return View::fetch('', [
                'data' => $data,
                'departments' => $departments
            ]);
        }
    }

    public function delete($id)
    {
        if ($this->model->destroy($id)) {
            return json(['code'=>2]);
        } else {
            return json(['code'=>0]);
        }
    }
}