Laravel Eloquent 模型根据字段值为空或存在的条件更新

Question

我正在尝试像这样更新 Laravel Eloquent 模型。

Res_Reservations::where('time_id', $time['id'])
                ->where('date',  $bus['date'])
                ->where('valid',  config('config.TYPE_SCHEDULE_UNREMOVED'))
                ->where(function($query) use($time, $notesAdd) {
                    $query->whereNull('reason', function($query) use ($time, $notesAdd) {
                        return $query->update([
                            'time_id' => $time['move'],
                            'reason' => $notesAdd
                        ]);
                    })
                    ->orWhere('reason', '=', '', function($query) use ($time, $notesAdd) {
                        return $query->update([
                            'time_id' => $time['move'],
                            'reason' => $notesAdd
                        ]);
                    })
                    ->orWhere('reason', '<>', '', function($query) use ($time, $notesAdd) {
                        return $query->update([
                            'time_id' => $time['move'],
                            'reason' => DB::raw("CONCAT(reason, \r\n'" . $notesAdd . "')")
                        ]);
                    });
                });

但它不起作用。

也就是说，我想更新如下。

• 如果“原因”为空或空字符串

  Res_Reservations::where('time_id', $time['id'])
                  ->where('date',  $bus['date'])
                  ->where('valid',  config('config.TYPE_SCHEDULE_UNREMOVED'))
                  ->update([
                      'time_id' => $time['move'],
                      'reason' => $notesAdd
                  ]);
  

• 否则

  Res_Reservations::where('time_id', $time['id'])
                  ->where('date',  $bus['date'])
                  ->where('valid',  config('config.TYPE_SCHEDULE_UNREMOVED'))
                  ->update([
                      'time_id' => $time['move'],
                      'reason' => DB::raw("CONCAT(reason, '\r\n" . $notesAdd . "')")
                  ]);
  

  我的错误是什么？我怎样才能使陈述更简单？请告诉我~

Answer 1

在where函数的回调中使用update函数是错误的

您必须在 2 个查询中执行此操作，例如：

Res_Reservations::where('time_id', $time['id'])
    ->where('date', $bus['date'])
    ->where('valid', config('config.TYPE_SCHEDULE_UNREMOVED'))
    ->where(function ($query
    {
        $query->where('reason', null)
            ->orWhere('reason', '');
    })
    ->update([
        'time_id' => $time['move'],
        'reason'  => $notesAdd,
    ]);


Res_Reservations::where('time_id', $time['id'])
    ->where('date', $bus['date'])
    ->where('valid', config('config.TYPE_SCHEDULE_UNREMOVED'))
    ->where('reason', '!=',  null)
    ->where('reason', '!=' '');
    ->update([
        'time_id' => $time['move'],
        'reason'  => DB::raw('CONCAT(reason, "\r\n' . $notesAdd . '")'),
    ]);