Laravel Collection get one of values by key - php

Question

I'm new to Laravel and I'm trying to get one of the values in one collection by one ID retrieved from another collection.
My function returns 2 Collections:
public function index()
{
$category = BlogCategory::all(['id', 'name']);
$post = BlogPost::orderBy('id', 'desc')->take(14)->get();
return view('blog.index', ['posts' => $post], ['categories' => $category]);
}
In a foreach loop I'm getting values from collections:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $categories->get($post->category_id) }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach
I'm partially getting the result as you can see in the image below, but I want to get only the name.
Here is the code that I'm trying to figure out
{{ $categories->get($post->category_id) }}
If there is a better or correct way to do it, let me know.
Blog Posts migration:
public function up()
{
Schema::create('blog_posts', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('title');
$table->longText('content');
$table->mediumText('slug');
$table->bigInteger('author_id')->unsigned();
$table->bigInteger('category_id')->unsigned();
$table->timestamps();
$table->foreign('author_id')->references('id')->on('blog_authors');
$table->foreign('category_id')->references('id')->on('blog_categories');
});
}

Answer 1

You should put in place the relationships between BlogPost and BlogCategory models, seen that you already have a category_id field in BlogPost model, i.e.:
in BlogPost Model:
public function category(){
return $this->belongsTo(\App\BlogCategory::class);
}
in BlogCategory Model:
public function posts(){
return $this->hasMany(\App\BlogPost::class);
}
Next you can eager load categories with the $posts in your controller with only two queries:
public function index()
{
$posts = BlogPost::with('category')->orderBy('id', 'desc')->take(14)->get();
return view('blog.index', compact('posts'));
}
Then in your view you can access each $post->category object directly because eager loaded in the controller:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->category->name }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach

Answer 2

It could be optimized, first, you need to make relation one to many from categories to posts
first: make sure that you have in posts migrations category_id column
Second: Open Category Model and write this method this will allow you to fetch posts that belong to the category
public function posts(){
return $this->hasMany(\App\Post::class);
}
Third: open shop model and write this method this will allow you to fetch category that belongs to the post
public function catgeory(){
return $this->belongsTo(\App\Category::class);
}
Finally: you will edit your view like this one
#foreach($posts as $post)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->category->title }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endforeach
and of course, you wouldn't call categories in your controller anymore
public function index()
{
$post = BlogPost::orderBy('id', 'desc')->take(14)
->with('category')->get();
return view('blog.index', ['posts' => $post]);
}

Answer 3

Maybe it better use a relation to drive this situation. You can load in the controller the data in this way.
In the Model Post:
function categories(){
return $this->belongsToMany('App\BlogCategory')->select(array('id', 'name');
}
Maybe is hasOne -> the relationship if you don't have a table pivot...
In the Controller:
public function index()
{
$data['posts'] = BlogPost::orderBy('id', 'desc')->take(14)->with('categories')->get();
return view('blog.index', $data);
}
In the View:
#foreach($posts as $post)
#if($loop->iteration > 2)
<div class="col-sm-6 col-md-3 d-flex justify-content-center other-post">
<a href="#">
<img src="#" alt="">
<p class="post-category">{{ $post->categories->name }}</p>
<h5 class="post-title">{{ $post->title }}</h5>
</a>
</div>
#endif
#endforeach

Answer 4

this line $categories->get($post->category_id) return for you an array of category, so the solution for you here is just like bellow:
{{ $categories->get($post->category_id)['name'] }}