CODEWITHSUNDEEP
ruby-on-rails
Bye
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Reputation: 768

Rails: How to pass value from one action to another in the same controller

I get input from first action, how can I pass the value to another action?

example_controller.rb

def first
  @first_value = params[:f_name]
end

def second
  @get_value = @first_value
end

Upvotes: 6

Views: 8659

Answers (2)

stevec
stevec

Reputation: 52268

In addition to Steve's answer, I just wanted to point out another way is to use the session.

Example

In controller:

session[:your_variable] = "A Great Title!"

then access it in the view:

<h1><%= session[:your_variable] %></h1>

More reading here, here, and here.

Upvotes: 0

SteveTurczyn
SteveTurczyn

Reputation: 36860

You can't pass instance variables, because the second action is running in a new instance of the controller. But you can pass parameters...

def first
  @first_value = params[:f_name]
  redirect_to second_action_path(passed_parameter: params[:f_name])
end

def second
  @first_value = params[:passed_parameter]
  @get_value = @first_value
end

You can also use session variables which is how you typically store values for a user... Don't store entire objects just keys as session store is typically limited

def first
  @first_value = params[:f_name]
  session[:passed_variable] = @first_value
end

def second
  @first_value = session[:passed_variable] 
  @get_value = @first_value

Upvotes: 8

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