application/admin/controller/Special.php

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<?php
/**
 * 易优CMS
 * ============================================================================
 * 版权所有 2016-2028 海南赞赞网络科技有限公司，并保留所有权利。
 * 网站地址: http://www.eyoucms.com
 * ----------------------------------------------------------------------------
 * 如果商业用途务必到官方购买正版授权, 以免引起不必要的法律纠纷.
 * ============================================================================
 * Author: 小虎哥 <1105415366@qq.com>
 * Date: 2018-4-3
 */

namespace app\admin\controller;

use think\Page;
use think\Db;
use think\Config;

class Special extends Base
{
    public $nid = 'special';
    public $channeltype = '';

    public function _initialize()
    {
        parent::_initialize();
        $channeltype_list  = config('global.channeltype_list');
        $this->channeltype = $channeltype_list[$this->nid];
        empty($this->channeltype) && $this->channeltype = 7;
        $this->assign('nid', $this->nid);
        $this->assign('channeltype', $this->channeltype);
    }

    //专题列表
    public function index()
    {
        $assign_data = $condition = [];

        // 获取到所有GET参数
        $param = input('param.');
        $typeid = input('typeid/d', 0);

        // 搜索、筛选查询条件处理
        foreach (['keywords', 'typeid', 'flag', 'is_release'] as $key) {
            if ($key == 'typeid' && empty($param['typeid'])) {
                $typeids = Db::name('arctype')->where('current_channel', $this->channeltype)->column('id');
                $condition['a.typeid'] = array('IN', $typeids);
            }
            if (isset($param[$key]) && $param[$key] !== '') {
                if ($key == 'keywords') {
                    $keywords = $param[$key];
                    $condition['a.title'] = array('LIKE', "%{$param[$key]}%");
                } else if ($key == 'typeid') {
                    $typeid = $param[$key];
                    $hasRow = model('Arctype')->getHasChildren($typeid);
                    $typeids = get_arr_column($hasRow, 'id');
                    // 权限控制 by 小虎哥
                    $admin_info = session('admin_info');
                    if (0 < intval($admin_info['role_id'])) {