Suppose there are two models, one is User model and other is Referral model. The root is root :to => 'users#new. Now the user will coming here via example.com/value, where value is the id for Referral model. Now using this value I have to increment two fields: One is visits, which shows how many visits did that particular url bring. Other is signup, which will increment if there is a signup using that value.
I have passed this value via routes in users#new, which I use to increment the visits column of Referral model. Now if the users signup, the users#create would be executed, and I want to be able to use the value in the create action as well, to increment the signup column in Referral model.
As of now, I understand that the instance variable I created in new action to store the value cannot be used in create action. Now how can I achieve this.
