Get Specific Columns Using “With()” Function in Laravel Eloquent

Question

I have two tables, User and Post. One User can have many posts and one post belongs to only one user

Answer 1

Note that if you only need one column from the table then using 'lists' is quite nice. In my case i am retrieving a user's favourite articles but i only want the article id's:

$favourites = $user->favourites->lists('id');

Returns an array of ids, eg:

Array
(
    [0] => 3
    [1] => 7
    [2] => 8
)