JOIN方法用于根据两个或多个表中的列之间的关系,从这些表中查询数据。join通常有下面几种类型,不同类型的join操作会影响返回的数据结果。
这是我的Model层代码 public function all_jobs() { $this->categories = new \App\Models\Categories(); $builder = $this->db->table('jobs'); $builder->select('*'); $builder->join('users', 'users.id = jobs.jobs_u_id'); $builder->join('categories', 'category_id = jobs.jobs_categ...
echo $this->db->last_query(); 这是我在Codeigniter 4中的控制器代码,我需要它来获取生成的查询: $cityModel = new CityModel(); $cities = $cityModel ->select('city.name AS cityName') ->select('county.name AS countryName') ->select('province.name AS provinceName') ->join('province', ...
使用>=或between逻辑的SQL Join 逻辑模型的混淆矩阵 模型和控制器查询,用于合并codeigniter中单行的timein和timeout Codeigniter -模型中的最后一行 ActionMailer最佳实践:模型或控制器中的调用方法? 控制器(或模型)中的拼音-铁路超高访问参数 逻辑定义的或中的Perl数组 ...
->join('连接表','连接条件') ->get(); //默认为左查询(left join … on) 例如: $this->db->select(“*”) ->from(“user”) ->join('category', user.id= category.id)//默认为左查询(left join ) ->get(); 9.3.2、通过join()第三个可选参数选择连接,可选参数包括:left、 right、outer...
use AppModelsUserModel; public function index(){ // 方法一:创建模型的实例 (建议使用) $userModel = new UserModel(); $users = $userModel->where("id",1)->find(); // 方法二:model 辅助函数 $userModel = model(UserModel,false); $users = $userModel->where("id",1)->find(); }...
$this->outPutJson(5000, array(), join($this->form_validation->error_array())); } //验证通过之后进行插入数据库 $insertId = $this->CarManageModel->my_insert('car_info', $data, TRUE); if (!empty($insertId)) { $this->outPutJson(200, $data); ...
(GIN_BALES . ' gb'); $this->db->join(GIN_PROCESS . ' gp', 'gp.id=gb.process_id'); $this->db->where('gb.sold_status', 0); $this->db->where('gp.ginner_id', $this->prscr_id); $this->db->where('gp.program', $program_id); $this->db->group_by('gp.id');看法:...
6.联合查询join() $this->db->select('*'); $this->db->join('comments', 'comments.id = blogs.id'); $query = $this->db->get('数据表名'); 添加记录: //设置记录的各字段值到数组中 $data['title'] = $title; $data['name'] = $name; ...
refactor: replace non-boolean if conditions in Model by @kenjis in#8193 refactor: View classes to fix PHPStan errors by @kenjis in#8208 refactor: Model by @kenjis in#8260 replace -1 with E_ALL in error_reporting calls by @ThomasMeschke in#8212 ...