Question

I am working a on rails 3 project and am trying to render a partial on the user profile page. Rendering works fine for everything except photo. When I try to access a user profile page I get the following error

undefined methodmodel_name’ for NilClass:Class`

user show.html.erb

def show
  @user= User.find(params[:id])
  @photo = Photo.find_by_id(params[:id])
end

In the profile show.html.erb

<%= content_tag :h2, "My photos" %>
<% photo = @user.photos %>
<% if photo.blank? %>
  <%= link_to 'Create photo', new_photo_path %>
<% else %>
  <%= render :partial => 'photos/photo', :locals => {:photo => @photo} %>
<% end %>

Here is the partial that it is rendering

<%= div_for photo do %>
 <table>
   <tr>
     <th>Title</th>
     <th>Date</th>
     <th>Extra</th>
   </tr>

   <tr>
     <td><%= photo.title %></td>
     <td><%= photo.date %></td>
     <td><%= photo.extra %></td>
     <td><%= link_to 'View photos', photo %></td>
   </tr>
 </table>
<% end %>

Any ideas or suggestions on how I can get rid of this error? Thanks in advance

Answer 1

When using the div_for note is nil so I would try accessing it by iterating through the code Like I’ve done below. Then photos should be accessible now.

<% @photos.each do |photo| %>
  <%= div_for photo do %>
    Code here
  <% end %>
<% end %>