Laravel: performing some task on every insert/update when using Query Builder or Eloquent ORM

Question

The Problem

I would like to automatically add created_by and modified_by fields to every insert/update to a database table in Laravel 4,

Answer 1

If you want to use Query Builder, and Eloquent the only way around this without extending the Core Components (which I don't deem necessary), you can just use the Event System.

Link: http://laravel.com/docs/events

So you'd use an event such as user.custom.save, then create a function for use with the query builder which at the end would trigger this event, same as with Eloquent.

Example:

class User extends Eloquent
{
    public function save()
    {
        Event::fire('user.custom.save', array($this));
        parent::save();
    }
}