Laravel 4: left join with where claus not showing none linked rows - laravel-4

Question

I am trying to build a Artisan Cron Job in the Laravel 4 that gets all our subscribers that should pay using the Eloquent ORM. I am trying to accomplish that I get all users with a subscription who paid for the last time at least one month ago, or new subscriptions who never paid at all.
Yet I only get the info from the user table (user 1 and 3), the values of the payment table are 'null'. Which means they are not with in range, however I only want 'null' values if they don't have any values in table payments.
my code:
$Payments = user::leftJoin('payments', function ($query) {
$query->on ('payments.user_id', '=', 'user.id')
->where ('payments.paid_on', '<=',
date('Y-m-d H:i:s',mktime(0, 0, 0, date("m")-1, date("d"), date("Y"))))
->where ('payments.paid_on', '>=',
date('Y-m-d H:i:s',mktime(0, 0, 0, date("m")-1, date("d")-10, date("Y"))));
})
->where('user.start', '<', date('Y-m-d H:i:s',time()) )
->where('user.end', '>', date('Y-m-d H:i:s',time()) )
->get(['user.*','payments.paid_on']);
This is example data:
(user)
id start end
| 1 | 2014-02-24 00:00:00 | 2015-02-24 00:00:00 |
| 2 | 2012-03-24 00:00:00 | 2013-01-24 00:00:00 |
| 3 | 2014-03-24 00:00:00 | 2015-03-24 00:00:00 |
(payments)
user_id paid_on
| 1 | 2014-02-24 00:00:00 |
| 1 | 2014-03-24 00:00:00 |
| 2 | 2013-01-24 00:00:00 |
I hope it would out put something like:
| 1 | 2014-02-24 00:00:00 | 2015-02-24 00:00:00 | 1 | 2014-03-24 00:00:00 |
| 3 | 2014-03-24 00:00:00 | 2015-03-24 00:00:00 |

Answer 1

don't know if I came to the right conclusion but this is what I ended up with. Check if a value existed in the right table in the where clause and if it didn't I checked if there was one for NULL. Here is the code:
$Payments = user::leftJoin('payments', 'user.id', '=', 'payments.user_id')
->where('user.start', '<', date('Y-m-d H:i:s',time()) )
->where('user.end', '>', date('Y-m-d H:i:s',time()) )
->where (function($query)
{
$query->where ('payments.paid_on', '<=',
date('Y-m-d H:i:s',mktime(0, 0, 0, date("m")-1, date("d"), date("Y"))))
->where ('payments.paid_on', '>=',
date('Y-m-d H:i:s',mktime(0, 0, 0, date("m")-1, date("d")-5, date("Y"))))
->orWhere(function($orQuery)
{
$orQuery->whereNull ('payments.paid');
});
}
->get(['user.*','payments.paid_on']);