Get all the data with specific tag in laravel

Question

I am using eloquent relationships for post and tags through post_tags. What i'm trying to do is make sections of posts in my front-end view with specific tags. Like if i have a section 1 it should have all posts of tag "new", section 2 should have all posts of tag "old" etc. And i want all of this to happen in a same view.

Post Model

public function tags()
{
    return $this->belongsToMany('App\Tag', 'post_tag');
}

Tag Model

 public function posts()
 {
     return $this->belongsToMany('App\Post', 'post_tag');
 }

Controller

public function index()
{
    $posts = Post::all();
    return view('frontend.index')->withPosts($posts);    
}

Please help me out:)

Answer 1

You can get all the tags with loading the posts :

public function index()
{
    $tags = Tag::with('posts')->get();
    return view('frontend.index')->withTags($tags);    
}

In the view you can do something like this :

@foreach ($tags as $tag)
    <h2>Tag : {{ $tag->name }}</h2>
    @foreach ($tag->posts as $post)
        <p>Post : {{ $post->title }}</p>
    @endforeach
@endforeach

---

For geting the posts where you have a tag :

public function index()
{
    $tagName = 'new';
    $posts = Post::whereHas('tags', function ($q) use($tagName) {
        $q->where('name', $tagName);
    })->get();
    return view('frontend.index')->withTagName($tagName)->withPosts($posts);
}

And in the view you can do this :

<h2>Tag : {{ $tagName }}</h2>
@foreach ($posts as $post)
    <p>Post : {{ $post->title }}</p>
@endforeach

If you want to do queries from view you can do it like this (but it's not a god practice because the view is just for viewing the content not geting it from database) :

<?php foreach ((\App\Post::whereHas('tags', function ($q) use($tagName) {
                    $q->where('name', $tagName);
                })->get()) as $post) { ?>

            <p>Post : {{ $post->title }}</p>

<?php } ?>