Variable visible in all actions of the controller

rubyonrails-talk
1

Hi I would like to have variable visible for all actions of one controller. It's something like admin panel where I have some actions, such as 'list', 'new', 'edit' and I have to display at the top of the page logged user's name. How and where do I have to declare and assign variable like this?

Thanks for help

2

I would like to not use additional plugins to do that. It works on sessions, of course, and I know that I can put user_name in session but I would like to keep only user_id and read other information from database. But I don't want to do something like: @user_name = User.find_by_id(session[:user_id]) in every action. I would like to do that once per controller and use it in all views available for these actions. Is it correct and possible?

3

A common solution is to use a before_filter

Fred

4

I guess you could write a helper method too, and use it in your view.