Eloquent nesting with clause in the middle relation - laravel

Question

I have the following relationships:
User [many-to-many with] Assignments
Assignments [many-to-many with] Badges
The assignment_user pivot table has a flag 'is_finished' which I need to be true
These are my relationships in the matching models:
User.php
public function assignments()
{
return $this->belongsToMany('Assignment')->withPivot('is_finished')->withTimestamps();
}
Assignment.php
public function badges()
{
return $this->belongsToMany('Badge', 'badge_assignment')->withTimestamps();
}
Badge.php
public function assignments()
{
return $this->belongsToMany('Assignment', 'badge_assignment')->withTimestamps();
}
I'm trying to get all the Badges for my User's finished Assignments. This was my query:
$user = User::with(array(
'assignments' => function($query) {
$query->where('is_finished', '=', true)->orderBy('updated_at', 'desc');
})
)
->with('badges')
->username($name)->first();
However this is rendering the error "Call to undefined method Illuminate\Database\Query\Builder::badges()" when I use foreach($user->assignments->badges ...).
I then tried to get badges inside the scope of the first with, but I don't know how to reach is_finished:
$user = User::with(array(
'assignments.badges' => function($query) {
$query->where('is_finished', '=', true)->orderBy('updated_at', 'desc');
})
)
->username($name)->first();
With this I get "column not found", because the query is looking for is_finished within the badges, not the assignment_user relationship.
As I was having this issue I tried this just to be sure:
User::with('assignments.badges')->whereUsername($username);
... and I'm still getting "Undefined property: Illuminate\Database\Eloquent\Collection::$badges".
What am I doing wrong?

Answer 1

You need to load nested assignments.badges like this:
$user = User::with(array(
'assignments' => function($query) {
$query->where('is_finished', '=', true)->orderBy('updated_at', 'desc');
})
)
->with('assignments.badges')
->username($name) // do you have a scope for this or should it be whereUsername?
->first();