yunzer/app/admin/controller/Resources.php

<?php
/**
 * 后台管理系统-资源管理
 */
namespace app\admin\controller;
use app\admin\controller\Base;
use think\facade\Db;
use think\facade\View;
use think\facade\Request;

class Resources extends Base
{
    // 资源列表
    public function lists()
    {
        if (Request::isPost()) {
            $category = input('post.category');
            $page = input('post.page', 1);
            $limit = input('post.limit', 10);
            $name = input('post.name');
            $uploader = input('post.uploader');
            
            $query = Db::table('yz_resources')
                ->where('delete_time', null)
                ->where('status', '<>', 3);
            
            // 分类筛选
            if (!empty($category)) {
                // 先获取分类ID
                $cateInfo = Db::table('yz_resources_category')
                    ->where('name', $category)
                    ->where('delete_time', null)
                    ->where('status', 1)
                    ->find();
                
                if ($cateInfo) {
                    $query = $query->where('cate', $cateInfo['id']);
                }
            }

            // 名称搜索
            if (!empty($name)) {
                $query = $query->where('name', 'like', '%'.$name.'%');
            }

            // 上传者搜索
            if (!empty($uploader)) {
                $query = $query->where('uploader', 'like', '%'.$uploader.'%');
            }
            
            // 获取总记录数
            $count = $query->count();
            
            // 获取分页数据
            $lists = $query->order('id DESC')
                ->page($page, $limit)
                ->select()
                ->each(function ($item) {
                    // 获取分类信息
                    $cateInfo = Db::table('yz_resources_category')
                        ->where('id', $item['cate'])
                        ->field('name, icon')
                        ->find();

                    // 设置分类名称
                    $item['cate'] = $cateInfo['name'];

                    // 如果资源没有图标，使用分类的图标
                    if (empty($item['icon']) && !empty($cateInfo['icon'])) {
                        $item['icon'] = $cateInfo['icon'];
                    }

                    // 格式化时间
                    $item['create_time'] = date('Y-m-d H:i:s', $item['create_time']);

                    return $item;
                });

            return json([
                'code' => 0, 
                'msg' => '获取成功', 
                'count' => $count,
                'data' => $lists
            ]);
        } else {
            // 获取所有分类并构建父子结构
            $allCategories = Db::table('yz_resources_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->order('sort asc, id asc')
                ->select()
                ->toArray();

            $categories = [];
            foreach ($allCategories as $category) {
                if ($category['cid'] == 0) {
                    $category['children'] = [];
                    foreach ($allCategories as $subCategory) {
                        if ($subCategory['cid'] == $category['id']) {
                            $category['children'][] = $subCategory;
                        }
                    }
                    $categories[] = $category;
                }
            }

            View::assign([
                'categories' => $categories
            ]);
            return View::fetch();
        }
    }

    // 添加资源
    public function add()
    {
        if (Request::isPost()) {
            $data = [
                'name' => input('post.name'),
                'cate' => input('post.cate'),
                'icon' => input('post.icon'),
                'url' => input('post.url'),
                'code' => input('post.code'),
                'uploader' => input('post.uploader'),
                'desc' => input('post.desc'),
                'status' => input('post.status', 2),
                'create_time' => time()
            ];

            $insert = Db::table('yz_resources')->insert($data);
            if (empty($insert)) {
                return json(['code' => 1, 'msg' => '添加失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '添加成功', 'data' => []]);
        } else {
            $lists = Db::table('yz_resources')
                ->order('id DESC')
                ->select()
                ->each(function ($item, $key) {
                    $item['create_time'] = time();
                    return $item;
                });
            View::assign([
                'lists' => $lists
            ]);
            return View::fetch();
        }
    }

    // 删除资源
    public function delete()
    {
        $id = input('post.id');
        $data = [
            'delete_time' => time(),
        ];
        $delete = Db::table('yz_resources')->where('id', $id)->update($data);
        if ($delete === false) {
            return json(['code' => 1, 'msg' => '删除失败', 'data' => []]);
        }
        return json(['code' => 0, 'msg' => '删除成功', 'data' => []]);
    }

    // 资源分类
    public function cate()
    {
        if (Request::isPost()) {
            $lists = Db::table('yz_resources_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->order('sort asc, id asc')
                ->select()
                ->toArray();

            // 构建树形结构
            $tree = [];
            foreach ($lists as $item) {
                if ($item['cid'] == 0) {
                    $node = [
                        'id' => $item['id'],
                        'title' => $item['name'],
                        'children' => []
                    ];
                    
                    // 查找子分类
                    foreach ($lists as $subItem) {
                        if ($subItem['cid'] == $item['id']) {
                            $node['children'][] = [
                                'id' => $subItem['id'],
                                'title' => $subItem['name'],
                                'children' => []
                            ];
                        }
                    }
                    
                    $tree[] = $node;
                }
            }

            return json(['code' => 0, 'msg' => '获取成功', 'data' => $tree]);
        }
        
        // 非 POST 请求返回视图
        return View::fetch();
    }

    //获取分类结构
    public function getcate()
    {
        // 获取所有分类
        $lists = Db::table('yz_resources_category')
            ->where('delete_time', null)
            ->where('status', 1)
            ->order('sort asc, id asc')
            ->select()
            ->toArray();

        // 构建父子结构
        $tree = [];
        foreach ($lists as $item) {
            if ($item['cid'] == 0) {
                // 顶级分类
                $tree[] = $item;
            } else {
                // 子分类
                foreach ($tree as &$parent) {
                    if ($parent['id'] == $item['cid']) {
                        if (!isset($parent['children'])) {
                            $parent['children'] = [];
                        }
                        $parent['children'][] = $item;
                        break;
                    }
                }
            }
        }

        return json(['code' => 0, 'msg' => '获取成功', 'data' => $tree]);
    }

    // 添加资源分类
    public function cateadd()
    {
        if (Request::isPost()) {
            $data = [
                'name' => input('post.name'),
                'icon' => input('post.icon'),
                'cid' => input('post.cid'),
                'sort' => input('post.sort', 0),
                'status' => input('post.status', 1),
                'create_time' => time()
            ];

            $insert = Db::table('yz_resources_category')->insert($data);
            if (empty($insert)) {
                return json(['code' => 1, 'msg' => '添加失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '添加成功', 'data' => []]);
        } else {
            // 获取所有可选的父级分类
            $parentCategories = Db::table('yz_resources_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->where('cid', 0)
                ->field('id, name')
                ->select()
                ->toArray();

            return json([
                'code' => 0,
                'msg' => '获取成功',
                'data' => [
                    'parentOptions' => $parentCategories
                ]
            ]);
        }
    }

    //编辑资源分类
    public function cateedit()
    {
        if (Request::isPost()) {
            $data = [
                'id' => input('post.id'),
                'name' => input('post.name'),
                'icon' => input('post.icon'),
                'cid' => input('post.cid'),
                'sort' => input('post.sort', 0),
                'status' => input('post.status', 1),
                'update_time' => time()
            ];

            $update = Db::table('yz_resources_category')
                ->where('id', $data['id'])
                ->update($data);

            if ($update === false) {
                return json(['code' => 1, 'msg' => '更新失败', 'data' => []]);
            }
            return json(['code' => 0, 'msg' => '更新成功', 'data' => []]);
        } else {
            $id = input('get.id');
            $info = Db::table('yz_resources_category')->where('id', $id)->find();
            
            // 获取所有可选的父级分类
            $parentCategories = Db::table('yz_resources_category')
                ->where('delete_time', null)
                ->where('status', 1)
                ->where('id', '<>', $id) // 排除自己
                ->where(function ($query) use ($id) {
                    // 排除自己的所有子分类
                    $query->where('cid', '<>', $id);
                })
                ->field('id, name, cid')
                ->select()
                ->toArray();

            // 构建父级分类选项
            $parentOptions = [];
            foreach ($parentCategories as $category) {
                if ($category['cid'] == 0) {
                    $parentOptions[] = [
                        'id' => $category['id'],
                        'name' => $category['name']
                    ];
                }
            }

            return json([
                'code' => 0,
                'msg' => '获取成功',
                'data' => [
                    'info' => $info,
                    'parentOptions' => $parentOptions
                ]
            ]);
        }
    }

    //删除资源分类
    public function catedel()
    {
        $id = input('post.id');

        // 检查是否有子分类
        $hasChildren = Db::table('yz_resources_category')
            ->where('cid', $id)
            ->where('delete_time', null)
            ->find();

        if ($hasChildren) {
            return json(['code' => 1, 'msg' => '该分类下有子分类，无法删除', 'data' => []]);
        }

        $delete = Db::table('yz_resources_category')
            ->where('id', $id)
            ->update(['delete_time' => time()]);

        if ($delete === false) {
            return json(['code' => 1, 'msg' => '删除失败', 'data' => []]);
        }
        return json(['code' => 0, 'msg' => '删除成功', 'data' => []]);
    }

    /**
     * 获取资源详情
     */
    public function get()
    {
        $id = input('id/d', 0);
        if (!$id) {
            return json(['code' => 1, 'msg' => '参数错误']);
        }

        $resource = Db::table('yz_resources')
            ->where('id', $id)
            ->where('delete_time', null)
            ->find();
            
        if (!$resource) {
            return json(['code' => 1, 'msg' => '资源不存在']);
        }

        // 获取分类信息
        $cateInfo = Db::table('yz_resources_category')
            ->where('id', $resource['cate'])
            ->field('name')
            ->find();

        if ($cateInfo) {
            $resource['cate_name'] = $cateInfo['name'];
        }

        // 调试输出
        trace('Resource data: ' . json_encode($resource), 'debug');

        return json(['code' => 0, 'msg' => '获取成功', 'data' => $resource]);
    }

    /**
     * 编辑资源
     */
    public function edit()
    {
        if (Request::isPost()) {
            $data = input('post.');
            $id = input('id/d', 0);
            
            if (!$id) {
                return json(['code' => 1, 'msg' => '参数错误']);
            }

            // 更新数据
            $result = Db::table('yz_resources')->where('id', $id)->update([
                'title' => $data['title'],
                'cate' => $data['cate'],
                'desc' => $data['desc'],
                'uploader' => $data['uploader'],
                'icon' => $data['icon'],
                'fileurl' => $data['fileurl'],
                'url' => $data['url'],
                'code' => $data['code'],
                'sort' => $data['sort'],
                'update_time' => time()
            ]);

            if ($result !== false) {
                return json(['code' => 0, 'msg' => '编辑成功']);
            } else {
                return json(['code' => 1, 'msg' => '编辑失败']);
            }
        }

        $id = input('id/d', 0);
        if (!$id) {
            $this->error('参数错误');
        }

        $resource = Db::table('yz_resources')->where('id', $id)->find();
        if (!$resource) {
            $this->error('资源不存在');
        }

        View::assign('resource', $resource);
        return View::fetch();
    }

}