Question

在php / MySQL中处理数据透视表的最佳方法是什么（或者说是那种效果），我使用RFID点击来记录他们的出勤率。

我有这两个表：

Users表

+----------------------------------+
| user_id | first_name | last_name |
| 1       | Tom        | Araya     |
| 2       | Kerry      | King      |
| 3       | Gary       | Holt      |
+----------------------------------+

attendance_log表

+-------------------------------------------------------------------------+
| log_id | user_id | status   | created_at          | updated_at          |
| 1      | 1       | entrance | 2017-08-09 13:08:57 | 2017-08-09 13:08:57 |
| 2      | 1       | entrance | 2017-08-09 13:09:01 | 2017-08-09 13:09:01 |
| 3      | 2       | entrance | 2017-08-09 13:09:15 | 2017-08-09 13:09:15 |
| 4      | 2       | entrance | 2017-08-09 13:09:18 | 2017-08-09 13:09:18 |
| 5      | 3       | entrance | 2017-08-09 13:09:30 | 2017-08-09 13:09:30 |
| 6      | 3       | entrance | 2017-08-09 13:09:33 | 2017-08-09 13:09:33 |
| 7      | 1       | entrance | 2017-08-10 13:08:57 | 2017-08-10 13:08:57 |
| 8      | 1       | entrance | 2017-08-10 13:09:01 | 2017-08-10 13:09:01 |
| 9      | 2       | entrance | 2017-08-10 13:09:15 | 2017-08-10 13:09:15 |
| 10     | 2       | entrance | 2017-08-10 13:09:18 | 2017-08-10 13:09:18 |
| 11     | 3       | entrance | 2017-08-10 13:09:30 | 2017-08-10 13:09:30 |
| 12     | 3       | entrance | 2017-08-10 13:09:33 | 2017-08-10 13:09:33 |
| 13     | 2       | entrance | 2017-08-11 13:09:30 | 2017-08-11 13:09:30 |
| 14     | 2       | entrance | 2017-08-11 13:09:33 | 2017-08-11 13:09:33 |
| 15     | 3       | entrance | 2017-08-11 13:10:45 | 2017-08-11 13:10:45 |
| 16     | 3       | entrance | 2017-08-11 13:10:45 | 2017-08-11 13:10:45 |
+-------------------------------------------------------------------------+

这是我想要实现的报告

+----------------------------------------------------+
| student id | fullname    | Aug 9 | Aug 10 | Aug 11 |
| 1          | Araya, Tom  | P     | P      | A      |
| 2          | King, Kerry | P     | P      | P      |
| 3          | Holt, Gary  | P     | P      | P      |
+----------------------------------------------------+

如果用户没有考勤记录，我该如何在雄辩中做到这一点以及如何设置为A？因为到目前为止我的出勤报告看起来不像那样。这是我的代码

    $students = User::has('userStudentAttendance')->with(['userStudentAttendance' => function($query) use ($details,$search_from, $search_to){
        $query->where('status', $details);
        $query->where(function($query) use ($search_from, $search_to){
            $query->whereBetween(DB::raw('Date(created_at)'), [$search_from, $search_to]);
        });
        $query->groupby('user_id')->groupby(DB::raw('Date(created_at)'));
    }])
    ->leftjoin('sys_user_student', 'sys_user_student.user_id', '=', 'sys_user.user_id')
    ->leftjoin('sys_mf_section', 'sys_mf_section.section_id', '=', 'sys_user_student.section_id')
    ->leftjoin('sys_mf_grade', 'sys_mf_grade.grade_id', '=', 'sys_mf_section.grade_id')     
    ->where('user_type_id', '4')
    ->where('sys_mf_section.section_id', $request->getParam('section_id'))
    ->where('sys_mf_grade.grade_id', $request->getParam('grade_id'))    
    ->orderBy('sys_user.last_name') 
    ->get();

使用数据透视表的表现报告 - ELOQUENT

0 个答案: