Laravel集合sortBy没有生效

时间:2017-03-12 22:41:03

标签: php laravel laravel-5 eloquent laravel-collection

我正在尝试对来自多个数据库查询的结果进行组合和排序。

$events = collect();

$downedEvents = EventDowned::where('mission', $missionId)
   ->orderBy('mission_time', 'asc')
   ->get();

$events->push($downedEvents);

$getInOutEvents = EventGetInOut::where('mission', $missionId)
   ->orderBy('mission_time', 'asc')
   ->get();

$events->push($getInOutEvents);

$missileEvents = EventMissile::where('mission', $missionId)
   ->orderBy('mission_time', 'asc')
   ->get();

$events->push($missileEvents);

$flattenedEvents = $events->flatten();
$sortedEvents = $flattenedEvents->sortBy('mission_time');

return $sortedEvents->all();

结果如下:

ss

正如您所看到的,它已正确组合结果,但它们仍保留原始查询顺序,而不是已排序。

我也试过

$sortedEvents = $flattenedEvents->sortBy(function($event) {
    return (int) $event->mission_time;
});

2 个答案:

答案 0 :(得分:10)

一个巨大的失败,我的漂亮的打印JSON chrome扩展正在弄乱显示顺序,查看原始响应显示它们实际上已正确排序... :: facepalm ::

答案 1 :(得分:1)

要扩展@Titan的答案,我想扩展名/邮递员应保持数组索引顺序。不太确定。

摆脱它

y_train

这是一个例子

return $collection->values();

该扩展程序仍将保持索引顺序

$arr = collect([
  0 => [
      'name' => 'foo',
      'weight' => 70
  ],
  1 => [
      'name' => 'bar',
      'weight' => 80
  ]
 ]);

return $arr->sortByDesc('weight');

这将获得所需的顺序。