Non-view functionality in a partial of layout.

[Sami Saada]

From revision 25 there is a wrong type of functionality in line 4 of /app/views/layouts/_main.html.haml

The main problem is "@controller.controller_name == 'exams'". If we want other controller to have same kind of functionality, that isn't possible without modifying this code snippet. This breaks lots of conventions and I'm tried of arguing about it.

More rails-way to do this is to use partials or different layouts. In this case a single partial can be more DRY-friendly:
     #left= render :partial => "leftside"

How ever that has a problem, which makes the site crash, if there isn't leftside view-partial for requested controller. For our luck there is a rescue :)
     #left= render :partial => "leftside" rescue nil
We rescue nil, because there isn't any content then.

app/views/exams/_leftside contains then all exams tabs info.

This type of coding opens us lots of possibilities, like different kind of tabs in every page.