Laravel 集合排序方式未生效

Question

我正在尝试合并和排序来自多个数据库查询的结果。

$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();

结果如下所示：

如您所见，它已正确组合结果，但它们仍保持原始查询顺序，未排序。

我也试过了

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

Answer 1

我的一个巨大失败，我漂亮的打印 JSON chrome 扩展扰乱了显示顺序，查看原始响应显示它们实际上排序正确... ::facepalm ::

Answer 2

为了扩展@Titan 的回答，我想扩展/邮递员会维护数组索引顺序。不太确定。

摆脱那个

return $collection->values();

这是一个例子

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

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

扩展程序仍将保持索引顺序

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

这将获得所需的顺序。

Laravel 集合排序方式未生效

Laravel collection sortBy not taking effect

php

laravel

eloquent

laravel-5

laravel-collection