manghe/app/admin/controller/Advert.php

<?php

namespace app\admin\controller;

use app\admin\controller\Base;
use \think\Request;
use think\facade\View;
use app\common\model\Advert as AdvertModel;
use app\common\model\AdvertType as AdvertTypeModel;
use app\common\model\Goods;
use app\common\model\Coupon;

class Advert extends Base
{
    /*
     *轮播图列表
     */
    public function index(Request $request)
    {
        // 1. 获取查询参数中的 type_id
        $typeId = $request->param('type_id', '', 'intval'); // 获取 type_id, 默认为空, 强制整数

        $whe = [];
        // 2. 如果 type_id 有效，则添加到查询条件
        if (!empty($typeId)) {
            $whe[] = ['type', '=', $typeId];
        }

        $field = '*';
        $order = 'type asc,id desc'; // 排序可以保持不变，或根据需要调整

        $list = AdvertModel::with('advertType')
            ->where($whe) // 应用查询条件
            ->field($field)
            ->order($order)
            ->paginate(['list_rows' => $this->page, 'query' => request()->param()]); // query 会自动保持 type_id 等参数

        $count = $list->total();

        // 3. 查询所有可用类型，用于下拉框
        $types = AdvertTypeModel::order('sort asc, id asc')->select();

        View::assign('count', $count);
        View::assign('list', $list);
        View::assign('types', $types); // 传递类型列表
        View::assign('typeId', $typeId); // 传递当前选中的 type_id

        return View::fetch('Advert/index');
    }

    /*
     * 轮播图添加
     */
    public function add(Request $request)
    {
    
        if (!$request->isPost()) {
            $types = AdvertTypeModel::order('sort asc, id asc')->select();
            View::assign('types', $types);
            return View::fetch('Advert/add');
        } else {
            $data = $request->post();

            if (empty($data['type'])) {
                return $this->renderError("请选择类型");
            }
            $typeExists = AdvertTypeModel::find($data['type']);
            if (!$typeExists) {
                return $this->renderError("选择的类型无效");
            }

            if (isset($data['ttype'])) {
                if ($data['ttype'] == 1) {
                    if (empty($data['coupon_id']) || $data['coupon_id'] < 0) {
                        return $this->renderError("优惠券id错误");
                    }
                    $is_find = Coupon::where('id', $data['coupon_id'])->find();
                    if (!$is_find) {
                        return $this->renderError("优惠券不存在");
                    }
                }
                if ($data['ttype'] == 2 || $data['ttype'] == 3 || $data['ttype'] == 4) {
                    if (empty($data['goods_id']) || $data['goods_id'] < 0) {
                        return $this->renderError("盒子id错误");
                    }
                    $is_find = Goods::where('id', $data['goods_id'])->find();
                    if (!$is_find) {
                        return $this->renderError("盒子不存在");
                    }
                }
                if ($data['ttype'] == 5) {
                    if (empty($data['url_link'])) {
                        return $this->renderError("请输入跳转链接");
                    }
                    
                }
            }

            if (isset($data['sort']) && !ctype_digit((string)$data['sort'])) {
                return $this->renderError("排序值请输入非负整数");
            }
            if (empty($data['imgurl'])) {
                return $this->renderError("请上传图片");
            }

            $data['addtime'] = time();
            $advert = new AdvertModel();
            $dd = $advert->save($data);

            if ($dd) {
                return $this->renderSuccess("轮播图添加成功");
            } else {
                return $this->renderError("轮播图添加失败");
            }
        }
    }

    /*
     * 轮播图修改
     */
    public function edit(Request $request)
    {
        if (!$request->isPost()) {
            $id = $request->param('id');
            $data = AdvertModel::find($id);
            if (!$data) {
                return $this->renderError("请求参数错误: 轮播图不存在");
            }
            $types = AdvertTypeModel::order('sort asc, id asc')->select();
            View::assign('data', $data);
            View::assign('types', $types);
            return View::fetch('Advert/edit');
        } else {
            $data = $request->post();
            if (empty($data['id'])) {
                return $this->renderError("请求参数错误: 缺少ID");
            }

            $info = AdvertModel::find($data['id']);
            if (!$info) {
                return $this->renderError("请求参数错误: 轮播图不存在");
            }

            if (empty($data['type'])) {
                return $this->renderError("请选择类型");
            }
            $typeExists = AdvertTypeModel::find($data['type']);
            if (!$typeExists) {
                return $this->renderError("选择的类型无效");
            }

            if (isset($data['ttype'])) {
                if ($data['ttype'] == 1) {
                    if (empty($data['coupon_id']) || $data['coupon_id'] < 0) {
                        return $this->renderError("优惠券id错误");
                    }
                    $is_find = Coupon::where('id', $data['coupon_id'])->find();
                    if (!$is_find) {
                        return $this->renderError("优惠券不存在");
                    }
                }
                if ($data['ttype'] == 2 || $data['ttype'] == 3 || $data['ttype'] == 4) {
                    if (empty($data['goods_id']) || $data['goods_id'] < 0) {
                        return $this->renderError("盒子id错误");
                    }
                    $is_find = Goods::where('id', $data['goods_id'])->find();
                    if (!$is_find) {
                        return $this->renderError("盒子不存在");
                    }
                }
                if ($data['ttype'] == 5) {
                    if (empty($data['url'])) {
                        return $this->renderError("请输入跳转链接");
                    }
                   
                }
            }

            if (isset($data['sort']) && !ctype_digit((string)$data['sort'])) {
                return $this->renderError("排序值请输入非负整数");
            }
            if (empty($data['imgurl'])) {
                return $this->renderError("请上传图片");
            }

            $data['update_time'] = time();
            $dd = $info->save($data);

            if ($dd !== false) {
                return $this->renderSuccess("轮播图编辑成功");
            } else {
                return $this->renderError("轮播图编辑失败或无更改");
            }
        }
    }

    /*
     * 轮播图 删除
     */
    public function del(Request $request)
    {
        $id = $request->param('id');
        $info = AdvertModel::find($id);
        if (!$info) {
            return $this->renderError("请求参数错误: 轮播图不存在");
        }
        $dd = $info->delete();
        if ($dd) {
            return $this->renderSuccess("轮播图删除成功");
        } else {
            return $this->renderError("轮播图删除失败");
        }
    }
}