instance variable life span in controller

rubyonrails-talk
1

I understand that rails drops all instance variables created in normal controller action after rendering view templates.

But I have the following problem that a normal controller action has several before_filter and after_filter, which all using same set of variables fetching from database.

2

I do not think I explained my problem clearly.

After you read the above post, you maybe think that I can just create another before_filter which is at the very beginning of this process, and just set an instance variable like @app_setting = App.first, and all the following method can use this variable.

But because all the before_filter and after_filter are wrapped to almost all actions in my app, so what I really want is that whether there is something that can persists its value between different request?

3

You can do like

def get_title        @title = @first_setting.title end

4

Sorry def get_title         @title = first_app_setting.title end

Sijo