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Ruby

Posted by Paul Dietrich
Paul Dietrich
4,557 Points

NoMethodError in Statuses#index

Hi All,

Just finished the Ruby on Rails video where you add the has_many :statuses section of code. The ruby page was working fine; however, after I defined "full_name" and inserted the following code:

<ul class="nav pull-right">
     <li><%= link_to current_user.full_name, "#" %></li>
</ul>

I get the following error page:

NoMethodError in Statuses#index

Showing /Users/pauldietrich/Documents/Projects/treebook/app/views/layouts/application.html.erb where line #18 raised:

undefined method `first_name' for nil:NilClass Extracted source (around line #18):

15: <li><%= link_to "All Statuses", statuses_path %></li> 16: </ul> 17: <ul class="nav pull-right"> 18: <li><%= link_to current_user.first_name, "#" %></li> 19: </ul> 20: </div> 21: </div> Rails.root: /Users/pauldietrich/Documents/Projects/treebook

Application Trace | Framework Trace | Full Trace app/views/layouts/application.html.erb:18:in _app_views_layouts_application_html_erb__2343450988773708573_70236940861300' app/controllers/statuses_controller.rb:7:inindex' Request

Parameters:

None

I'm not sure what's wrong.

5 Answers

Matthew Hartwig
Matthew Hartwig
3,941 Points
Matthew Hartwig
Matthew Hartwig
3,941 Points

I would try to reset your database

rake db:reset
M Myers
M Myers
918 Points
M Myers
M Myers
918 Points

I'm having the exact same error and haven't found a way to fix it. I tried rake db:reset, got an error, it recommended I do rake db:migrate, so I did that and it's still not working.

Anyone have any idea what's going on? I'm completely new to Ruby and this has me stumped!

Szabolcs Légrádi
Szabolcs Légrádi
9,797 Points
Szabolcs Légrádi
Szabolcs Légrádi
9,797 Points

Since you are not logged in, the current_user variable will be nil and that is why your application crashes. Wrap the li in a condition, so that it only displays when a user is logged in.

<ul class="nav pull-right">
 <% if user_signed_in? %>
  <li><%= link_to current_user.full_name, "#" %></li>
  <% end %>
</ul>
Paul Dietrich
Paul Dietrich
4,557 Points
Paul Dietrich
Paul Dietrich
4,557 Points

Thanks so much, Szabolcs! That did it.