link_to with controller_name and action name not working

Question

I'm working on upgrading rails 3.2 app to rails 4.2. I have stuck with one issue. link_to with controller and action name not working

<%= link_to "Login", :controller => "user", :action => "login" %>

This is the link I want to convert into rails 4 code. using the same fashion.

I have tried this way.

<%= link_to "Login", { controller: "user", action: "login" } %>

its gives be below error:

ArgumentError: wrong number of arguments (given 2, expected 0..1)

Is anyone faced this issue. I have google this but not solved this.

Answer 1

Try with the controller and action as options, not within a hash:

<%= link_to 'Login', controller: 'user', action: 'login' %>

Or also you can check the specific route for Users#login and pass it as the second option.

Answer 2

I was looking at the documentation https://apidock.com/rails/v4.0.2/ActionView/Helpers/UrlHelper/link_to

<%= link_to "Profile", controller: "profiles", action: "show", id: @profile %>
# => <a href="/profiles/show/1">Profile</a>

you should be able to do

<%= link_to "Login",  controller: "user", action: "login" %>