In this article, you will learn how to use sessions in Ruby on Rails.
Sessions in Ruby on Rails are used to store user-specific information across multiple requests. Here are the steps to use sessions in Ruby on Rails:
Enable sessions in your application by adding the following line to config/application.rb:
This line tells Rails to use a cookie-based session store.
Set a value in the session using the session method. For example:
session[:user_id] = 1
This will set the user_id key in the session to 1.
Retrieve a value from the session using the session method. For example:
user_id = session[:user_id]
This will retrieve the value of the user_id key from the session.
Remove a value from the session using the session method. For example:
This will remove the user_id key from the session.
You can also use the flash method to store temporary data in the session that is available for the next request only. For example:
flash[:notice] = "Your changes have been saved."
This will set the notice key in the flash, which will be available in the next request.