如何建立多对多关系3 laravel模型4

Question

I wonder how to create relation from 3 tables.

Here is my model structure:

User Model

class User extends Eloquent { 
    public function Posts(){
        return $this->hasMany('Post');
    } 
    public function comments(){
        return $this->hasMany('comment');
    }
}


class Post extends Eloquent { 
    public function comments() {
        return $this->hasMany('Comments');
    } 
    public function user(){
        return $this->belongsTo('user');
    }    
}

class Comments extends Eloquent {  
    public function user(){
        return $this->belongsTo('user');
    }
    public function Post(){
        return $this->belongsTo('Post');
    } 
}

User can have many post, and each post has many comments from user.

I tried to grab all comments from post with user who posted the comment

$comments = Post::find(1)->comments()->get();
foreach ($comments as $comment) {
    // here my code now to get the user
    $comment->user()->get()
}

The result:

[
       {
        id: "1",
        post_id: "1",
        user_id: "1", 
        reply_text: "Testing", 
       },...
]

I think it's not efficient at all.

How can I make this more simple like:

[
     {
        id: "1",
        post_id: "1",
        user_id: "1", 
        reply_text: "Testing", 
        user_post: {
            id: 1,
            name: "Edi vianika",
            profil_img: "l.jpg"
        }
    }
]

Answer 1

This is correctly answered on comments by Phill, and as he says, you should user Eager Loading .

$post = Post::with('comments', 'comments.user')->find(1);

Then you can simply iterate like this:

foreach ($post->comments as $comment) {
    echo $comment->user->name . ' said: ' . $comment->title;
}

Just for clarity tho, I would suggest you to name your $comment->user relationship to author instead, it feels natural to type $comment->author->name . You could do so as:

class Comments extends Eloquent {

    public function author()
    {
        return $this->belongsTo('user', 'user_id');
    }
}

// Remember to change eager loading to 'comments.author'