Make translations a nested resource for each problem

app/views/translations/_form.html.erb

@@ -1,4 +1,4 @@
-<%= form_for(@translation) do |f| %>
+<%= form_for([@problem, @translation]) do |f| %>
   <% if @translation.errors.any? %>
     <div id="error_explanation">
       <h2><%= pluralize(@translation.errors.count, "error") %> prohibited this problem from being saved:</h2>

app/views/translations/index.html.erb

@@ -19,6 +19,4 @@
   </tbody>
 </table>
 <%= render 'translation_pagination' %>
-<br>
-
-<%= link_to 'New Translation', new_translation_path, class: 'btn btn-default' %>
+<br>

app/views/translations/new.html.erb

@@ -1,4 +1,4 @@
-<h1>New translation</h1>
+<h1>New translation for problem <%= @problem.id %></h1>
 
 <%= render 'form' %>