Eager Loading with hasManyThrough with Laravel 4.1 - laravel-4

Question

I have the following table structure;
users
user_id | email | name
==================================
1 | tom#example.org | Tom
2 | pete#example.org | Pete
trainings
training_id | user_id | title
=================================================
1 | 1 | First training of Tom
2 | 1 | Second training of Tom
3 | 2 | First training of Pete
4 | 2 | Second training of Pete
calendar
calendar_id | training_id | when_date
=================================================
1 | 1 | 2014-08-01 10:00:00
2 | 1 | 2014-08-08 10:00:00
3 | 1 | 2014-08-15 10:00:00
4 | 2 | 2014-08-01 18:00:00
5 | 2 | 2014-08-03 18:00:00
6 | 2 | 2014-08-05 18:00:00
7 | 3 | 2014-08-12 16:30:00
8 | 4 | 2014-08-09 22:30:00
I have prepared three models for this table structure
class User extends Eloquent
{
public function trainings()
{
return $this->hasMany('Training');
}
public function events()
{
return $this->hasManyThrough('Calendar', 'Training', 'user_id', 'training_id');
}
}
class Training extends Eloquent
{
public function user()
{
return $this->belongsTo('User');
}
public function events()
{
return $this->hasMany('Calendar');
}
}
class Calendar extends Eloquent {
public function training()
{
return $this->belongsTo('Training');
}
}
I want to get latest N calendar events ordered by the nearest event first for a selected user (user_id = 1) with all training details of this calendar event. When I do the following, the eager loading doesn't seem to work.
$events = User::with('events', 'trainings')->find($userId);
foreach ($events as $event) {
echo $event->training->title; // runs a separate query to get the title of the training
}
If there are 100+ events for a given user, it runs 100+ queries.
How can I achive this with eager loading?

Answer 1

Shouldn't you fetch the user first and then query through that instance?
$user = User::find(userId);
$events = $user->with('events', 'trainings');
or in one go:
User::find(userId)->with('events', 'trainings');

Answer 2

You could achieve that by using lazy eager loading. In your case:
$user = User::with('events')->find($userId);
$user->events->load('training');
foreach ($user->events as $event) {
echo $event->training->title;
}