我在数据库查询后收到一个集合。然后我通过传递一个闭包回调对它进行分组。然后最后,我想使用每个将闭包回调传递给排序数组来对这些分组数组进行排序。但不工作。也许它是受保护的,如何实现这一目标?
我在PostController的代码
$post->comments = $post->comments->groupBy(function($comment){
return $comment->parent_id == null ? "-1": $comment->parent_id;
})->each(function($comment){
// TODO: sort array
uasort($comment, function($a, $b){
return $a->created_at->lte($b->created_at)? 1: -1;
});
return $comment;
});
Debugbar::info($post->comments);
$ post>评论信息
Illuminate\Database\Eloquent\Collection Object
(
[items:protected] => Array
(
[-1] => Array
(
[0] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 1
[user_id] => 4
[post_id] => 1
[parent_id] =>
[comment] => Eligendi ipsum saepe qui velit laudantium.
[created_at] => 2013-11-06 13:28:49
[updated_at] => 2013-11-06 13:28:49
)
[original:protected] => Array
(
[id] => 1
[user_id] => 4
[post_id] => 1
[parent_id] =>
[comment] => Eligendi ipsum saepe qui velit laudantium.
[created_at] => 2013-11-06 13:28:49
[updated_at] => 2013-11-06 13:28:49
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
[1] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 2
[user_id] => 63
[post_id] => 1
[parent_id] =>
[comment] => Aperiam ut molestiae.
[created_at] => 2013-08-18 00:15:24
[updated_at] => 2013-08-18 00:15:24
)
[original:protected] => Array
(
[id] => 2
[user_id] => 63
[post_id] => 1
[parent_id] =>
[comment] => Aperiam ut molestiae.
[created_at] => 2013-08-18 00:15:24
[updated_at] => 2013-08-18 00:15:24
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
[2] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 3
[user_id] => 4
[post_id] => 1
[parent_id] =>
[comment] => Doloribus ipsa velit unde veritatis qui.
[created_at] => 2013-09-20 05:19:45
[updated_at] => 2013-09-20 05:19:45
)
[original:protected] => Array
(
[id] => 3
[user_id] => 4
[post_id] => 1
[parent_id] =>
[comment] => Doloribus ipsa velit unde veritatis qui.
[created_at] => 2013-09-20 05:19:45
[updated_at] => 2013-09-20 05:19:45
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
[19] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 27
[user_id] => 100
[post_id] => 1
[parent_id] =>
[comment] => dsdfsdfdg
[created_at] => 2014-02-17 09:06:08
[updated_at] => 2014-02-17 09:06:08
)
[original:protected] => Array
(
[id] => 27
[user_id] => 100
[post_id] => 1
[parent_id] =>
[comment] => dsdfsdfdg
[created_at] => 2014-02-17 09:06:08
[updated_at] => 2014-02-17 09:06:08
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
[20] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 28
[user_id] => 100
[post_id] => 1
[parent_id] =>
[comment] => dsdfsdfdg
[created_at] => 2014-02-17 09:08:14
[updated_at] => 2014-02-17 09:08:14
)
[original:protected] => Array
(
[id] => 28
[user_id] => 100
[post_id] => 1
[parent_id] =>
[comment] => dsdfsdfdg
[created_at] => 2014-02-17 09:08:14
[updated_at] => 2014-02-17 09:08:14
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
)
[5] => Array
(
[0] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 7
[user_id] => 12
[post_id] => 1
[parent_id] => 5
[comment] => Consequatur aut consequuntur ut voluptatem et.
[created_at] => 2013-09-19 11:21:35
[updated_at] => 2013-09-19 11:21:35
)
[original:protected] => Array
(
[id] => 7
[user_id] => 12
[post_id] => 1
[parent_id] => 5
[comment] => Consequatur aut consequuntur ut voluptatem et.
[created_at] => 2013-09-19 11:21:35
[updated_at] => 2013-09-19 11:21:35
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
)
)
[2] => Array
(
[0] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 9
[user_id] => 74
[post_id] => 1
[parent_id] => 2
[comment] => Omnis est tenetur eum quo totam.
[created_at] => 2013-11-12 12:40:41
[updated_at] => 2013-11-12 12:40:41
)
[original:protected] => Array
(
[id] => 9
[user_id] => 74
[post_id] => 1
[parent_id] => 2
[comment] => Omnis est tenetur eum quo totam.
[created_at] => 2013-11-12 12:40:41
[updated_at] => 2013-11-12 12:40:41
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
)
[1] => Array
(
[0] => Comment Object
(
[table:protected] => comments
[fillable:protected] => Array
(
[0] => id
)
[connection:protected] =>
[primaryKey:protected] => id
[perPage:protected] => 15
[incrementing] => 1
[timestamps] => 1
[attributes:protected] => Array
(
[id] => 10
[user_id] => 66
[post_id] => 1
[parent_id] => 1
[comment] => Non consequatur excepturi molestias tempore voluptatem.
[created_at] => 2013-09-19 09:13:02
[updated_at] => 2013-09-19 09:13:02
)
[original:protected] => Array
(
[id] => 10
[user_id] => 66
[post_id] => 1
[parent_id] => 1
[comment] => Non consequatur excepturi molestias tempore voluptatem.
[created_at] => 2013-09-19 09:13:02
[updated_at] => 2013-09-19 09:13:02
)
[relations:protected] => Array
(
)
[hidden:protected] => Array
(
)
[visible:protected] => Array
(
)
[appends:protected] => Array
(
)
[guarded:protected] => Array
(
[0] => *
)
[dates:protected] => Array
(
)
[touches:protected] => Array
(
)
[observables:protected] => Array
(
)
[with:protected] => Array
(
)
[exists] => 1
[softDelete:protected] =>
)
)
)
)
您可以看到“-1”组不是按创建日期排序。
答案 0 :(得分:1)
到目前为止,我通过在控制器中创建一个私有函数来处理分组的注释集合对象来实现这一点。
这就是函数如:
private function commentToArrayAndSort(Illuminate\Database\Eloquent\Collection $groupedComments, Closure $sortClosure, Closure $childrenSortClosure = null)
{
$formattedComments = array();
$keys = array_keys($groupedComments->toArray());
for($i = 0; $i < count($keys); $i++)
{
$comments = $groupedComments[$keys[$i]];
$formattedComments[$keys[$i]] = array();
$counter = 0;
foreach($comments as $comment)
{
$commentArr = $comment->toArray();
$commentObj = new Comment(array(
"id" => $commentArr['id'],
"user_id" => $commentArr['user_id'],
"post_id" => $commentArr['post_id'],
"parent_id" => $commentArr['parent_id'],
"comment" => $commentArr['comment'],
"created_at" => $commentArr['created_at'],
"updated_at" => $commentArr['updated_at'],
));
$commentObj->setRelations(array('author'=>new User($comment->toArray()['author'])));
array_push($formattedComments[$keys[$i]], $commentObj);
$counter++;
}
// Sort Array
if ($counter > 1) {
uasort($formattedComments[$keys[$i]], $sortClosure);
}
}
return $formattedComments;
}
然后像这样称呼它:
$post->comments = $this->commentToArrayAndSort($groupedComments, function($a, $b){
return $a->created_at->gte($b->created_at) ? -1 : 1;
});
我不知道是否有更好的解决方案。到目前为止我得到了这个。 如果有人可以改进我的答案或有更好的解决方案,请发布分享给我一个帮助
谢谢:)
答案 1 :(得分:0)
我正在寻找相关的东西: 在将其传递给视图之前,我必须在控制器中操纵Eloquent中的数据。 例如:
$events = App\Models\Event::->get();
$eventsDecade = [];
foreach ($events as $key => $value) {
$decade = substr(date('Y', strtotime($value->date)), 0, -1)."0";
$eventsDecade[$decade][] = new App\Models\Event($value->toArray());
}
通过这样做,我创建了一个具有十年的新数组,并在每个十年内创建一个事件对象,我可以将其用作普通对象:例如,{{ $event->name }}
。
不确定你的问题是那个......