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Ruby Build a Simple Ruby on Rails Application Customizing Forms Adding Styling

Posted by Scott Lundgren
Scott Lundgren
Courses Plus Student 12,521 Points

Sign In Form NoMethodError in Devise/sessions#new

I'm using ruby 1.9.3p448, rails 3.2.16, devise 3.2.4, simple_form 2.1.1. The error 

undefined method `input' for #<ActionView::Helpers::FormBuilder:0x007fd3a3b907e8>

occurs at http://localhost:3000/users/sign_up

My app/views/devise/sessions/new.html.erb looks like:

<%= form_for(resource, as: resource_name, url: session_path(resource_name), html: {class: "well"}) do |f| %>

    <%= f.input :email %>
    <%= f.input :password %>

    <% if devise_mapping.rememberable? -%>
      <div><%= f.input :remember_me, as: :boolean %></div>
    <% end -%>

    <div><%= f.submit "Sign in" %></div>
  <% end %>

  <%= render "devise/shared/links" %>

My app/views/layouts/application.html.erb includes 

<li><%= link_to "Log In", new_user_session_path %></li>

and running rake routes produces 

new_user_session GET    /users/sign_in(.:format)       devise/sessions#new

I've stopped & restarted rails s and I still get the error. I've run "rake db:reset" and "rake db:migrate" dropping all my statuses and users and I still get the error.

I understand that when devise calls the sign in view that the view s not finding simple_form to call the input method on. But how to correct the problem is where I'm stuck.

2 Answers

Calvin Nix
Calvin Nix
43,828 Points
Calvin Nix
Calvin Nix
43,828 Points

I believe that your error is on the first line.

<%= form_for(resource, as: resource_name, url: session_path(resource_name), html: {class: "well"}) do |f| %>

I believe that you need to specify that it is a simple form. So you would do this instead...

<%= simple_form_for(resource, as: resource_name, url: session_path(resource_name), html: {class: "well"}) do |f| %>
Scott Lundgren
PLUS
Scott Lundgren
Courses Plus Student 12,521 Points
Scott Lundgren
Scott Lundgren
Courses Plus Student 12,521 Points

Doh! That was it. I overlooked it. Thank you!