how to access user id value in another controller in ruby on rails [closed]

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i want to access user login id (whenever he/she loggedin?) in some other controller i tried so many methods

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Define a current_user method in your ApplicationController

class ApplicationController < ActionController::Base
   helper_method :current_user

   def current_user
      # ...
      # return an instance of User class
      # can be just:
      # @current_user ||= User.find(session[:user_id])
      # if you set session[:user_id] when the user logs in
   end
end

This way you can access current_user.id inside other controllers.

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You need use session.

You put your user id in session after login

session[:user_id] = user.id

And in all of your controller you can fetch you userid from this session

User.find(session[:user_id])