Ordering by count in Laravel - php

Question

In my Laravel application, I have implemented Tagging of articles and events. This is accomplished by having two tables: tags and taggables. In my tag controller, I have an index method that grabs all the tags, a count of the tags and the same logic to count used tags.
It looks like this:
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$tags = Tag::orderByDesc('name')->get();
$tagCount = count($tags);
$usedTags = Tag::has('articles')->orHas('events')->orderBy('name')->get();
$usedTagsCount = count($usedTags);
return view('pages.tags.index', compact('tags', 'usedTags', 'tagCount', 'usedTagsCount'));
}
I pass all this data to my view which looks like this:
<div class="container">
<div class="row">
<!-- Search results -->
<div class="col-md-8">
<div class="padded-content-box">
<div class="header">
<div class="row">
<div class="col-xs-12 col-md-12">
<h1 class="heading">Tags</h1>
</div>
</div>
</div>
</div>
<div class="padded-content-box">
<div class="header">
<div class="row">
<div class="col-xs-12 col-md-12">
<h2 class="sub-heading">
All Tags ({{ $tagCount }})
</h2>
</div>
</div>
</div>
<div class="content">
<div class="tag-row">
<div class="tag-words-list">
#foreach($tags as $tag)
<a class="tag-word" title="{{ $tag->name }}" href="{{ URL::action('TagController#show', $tag->slug) }}">{{ $tag->name }}</a>
#endforeach
</div>
</div>
</div>
</div>
<div class="padded-content-box">
<div class="header">
<div class="row">
<div class="col-xs-12 col-md-12">
<h2 class="sub-heading">
Tags currently in use ({{ $usedTagsCount }})
</h2>
</div>
</div>
</div>
<div class="content">
#foreach($usedTags as $tag)
<p>
<a class="tag-word" title="{{ $tag->name }}" href="{{ URL::action('TagController#show', $tag->slug) }}">{{ $tag->name }}</a>
x {{ count($tag->articles) + count($tag->events) }}
</p>
#endforeach
</div>
</div>
</div>
<div class="col-md-4"></div>
</div>
</div>
As you can see, to show a count of tags used I just add the articles and events that have a given tag.
How would I count how many times each tag is used in both events and articles, then order them by the count. Essentially if a tag has been used the most it would be at the top of a list.
Update
As suggested I have changed my controller method to look like this:
public function index()
{
$tags = Tag::orderBy('name')->get();
$tagCount = count($tags);
$usedTags = Tag::has('articles')->orHas('events')->withCount('articles', 'events')->orderByRaw('articles_count + events_count DESC')->orderBy('name')->get();
$usedTagsCount = count($usedTags);
return view('pages.tags.index', compact('tags', 'usedTags', 'tagCount', 'usedTagsCount'));
}
This ensures that the tags are in count and alphabetical order.
Then in my view I changed the count code to this:
<p>
<a class="tag-word" title="{{ $tag->name }}" href="{{ URL::action('TagController#show', $tag->slug) }}">{{ $tag->name }}</a> x {{ $tag->articles_count + $tag->events_count }}
</p>
This way I get to remove some minor logic from the view.

Answer 1

Use withCount():
$tags = Tag::withCount('articles', 'events')
->orderByRaw('articles_count + events_count DESC')
->get();