Laravel 4.1 Eager Loading Nested Relationships with Constraints

Question

I am trying to get Eager-Loading nested relationships, with constraints, to work. Everyone seems to be giving the same example of eager-loading nested relationships:

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Answer 1

It's hard to achieve that in the context of User->Post->Comment, but you can easily do this starting from Post if that suit you:

Post::with('users')->with('comments')->find(1);

as it will load all users and all comments related to the given post.

-- edit: Don't trust the first sentence, it's as simple as this:

// $id of the post you want

User::with(['comments' => function ($q) { // this is hasManyThrough relation
  $q->where('post_id',$id);               // comments only related to given post
}])->with(['posts' => function ($q) {
  $q->whereId($id);                       // here we load only the post you want
}])->whereHas('posts', function ($q) {
  $q->whereId(1);                         // here we filter users by the post
})->get();

Mind though that Laravel will run 3 queries to get it done