CODEWITHSUNDEEP
phpmysqllaraveleloquentrelationships
Emad Rashad Muhammed
Emad Rashad Muhammed

Reputation: 85

How To use Eloquent in From One Model to another model through intermediate table

i have three models

Article 

id 
title

Comment

id
title
user_id
article_id

User 

id 
name

what i wanna achieve is to select one article based on its id with comments and user info that made that comment

like that : 

$article = Article::find($id -- say 1)->with('comments' -- this is a relation in Article Model)->get();

this gives me article with related comments as an array of objects say comment one - comment two etc ....

what i want instead of user_id in comment object i wanna it to be a user object

see this pic thats what i reached so far

screen of what i have done

using laravel 5.4

Upvotes: 1

Views: 16281

Answers (3)

Hasnat Babur
Hasnat Babur

Reputation: 342

It is far better to use ->find() at last instead of ->get() because get() returns a Collection.

This way you will get a single object which you want instead of a Collection.

For example:

$commentableObj = Post::with(['comments'])
                  ->withCount(['comments'])
                  ->findOrFail($commentable->id);

Upvotes: 0

Vaishnav Mhetre
Vaishnav Mhetre

Reputation: 199

If you have defined the foreign key relationship in Schemas, you can define functions for Eloquent Relationship as defined in following reference link - Laravel - Eloquent Relationships.

You can define functions in models as follows -

Article -

  class Article extends Model
  {
     ...

     public function comments(){

         // Accessing comments posted to that article.

         return $this->hasMany(\App\Comment::class);
     }

     // Create a foreign key to refer the user who created the article. I've referred it here as 'created_by'. That would keep relationship circle complete. You may ignore it if you want.

     public define user(){

         // Accessing user who posted the article

         return $this->hasOne(\App\User::class, 'id', 'created_by');
     }
  }

Comment -

  class Comment extends Model
  {
     ...

     public function article(){

         // Accessing article to which the particular comment was posted

         return $this->hasOne(\App\Article::class, 'id', 'article_id');
     }

     public function user(){

         // Accessing user who posted the comment

         return $this->hasOne(\App\User::class, 'id', 'user_id');
     }
  }

User -

  class User extends Models
  {
     ...

     public function articles(){

         // Accessing articles posted by a user

         return $this->hasMany(\App\Article::class);
     }

     public function comments(){

         // Accessing comments posted by a user

         return $this->hasMany(\App\Comment::class);
     }
  }

Now you can use like following - 

   $article = Article::findOrFail($id);
   $comments = $article->comments;
   $article_user = $article->user;
   $comment_user = Comment::findOrFail($commnet_id)->user;
   $users_comments = User::findOrFail($user_id)->comments;
   $users_articles = User::findOrFail($user_id)->articles;

and so on...

Upvotes: 3

yasmuru
yasmuru

Reputation: 1186

You can use following: 

$articles = Article::find($id)->with('comments', 'comments.user')->get();

Here 'user' is the relationship you mentioned in the comments model for User.

Upvotes: 9

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