Laravel sort group array in collection - php

Question

I get a collection after database query. And then I group it by passing a closure callback. And then last, I want to sort these grouped array in collection using each which pass a closure callback to sort array. But NOT working. Maybe it's protected , how to achieve this?
My code at PostController
$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);
Info of $post->comments
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] =>
)
)
)
)
You can see that group of "-1" is not order by creation date.

Answer 1

So far, I achieve this by create a private function in controller to process grouped comment collection object.
This is how the function like:
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;
}
And then call it like this:
$post->comments = $this->commentToArrayAndSort($groupedComments, function($a, $b){
return $a->created_at->gte($b->created_at) ? -1 : 1;
});
I don't know if there's a better solution for this. So far I got this.
If anyone can improve my answer or has a better solution, plz post it to share and give me a help
Thanks :)

Answer 2

I was searching for something related :
I have to manipulate my data from Eloquent in the controller before passing it to the view.
So for example :
$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());
}
By doing this I'm creating a new array with the decade and inside each decade an Event Object that i can use as a normal object : {{ $event->name }} in a foreach for example.
Not sure your question was exactly that...