Rails 4 - Messenger gem - tutorial setup - ruby-on-rails

Question

I am trying to make an app in Rails 4.
I'm trying to follow this tutorial to setup the messenger gem. http://josephndungu.com/tutorials/private-inbox-system-in-rails-with-mailboxer
I have:
Gemfile:
gem "mailboxer"
User.rb
def mailboxer_name
self.full_name
end
def mailboxer_email(object)
self.email
end
mailboxer.rb initialiser
config.email_method = :mailboxer_email
config.name_method = :full_name
I have an attribute in my user table called :email and I have a method in my user model called:
def full_name
if first_name.present?
[*first_name.capitalize, last_name.capitalize].join(" ")
else
test full name
end
end
One difference between this attempt and the tutorial is that since I previously tried the site point tutorial (and couldn't get it working), I already have a messages controller and view folder in my app. Where this tutorial users 'mailbox', I use 'messages'
I can't get past the first test point in this tutorial. I get this error:
NoMethodError in MessagesController#inbox
undefined method `inbox' for #<ActiveRecord::Associations::CollectionProxy []>
The error message highlights this method:
def inbox
#inbox = messages.inbox
#active = :inbox
end
I have:
messages controller
class MessagesController < ApplicationController
before_action :authenticate_user!
def inbox
#inbox = messages.inbox
#active = :inbox
end
def sent
#sent = messages.sentbox
#active = :sent
end
def trash
#trash = messages.trash
#active = :trash
end
end
application helper
def flash_class(level)
case level.to_sym
when :notice then "alert alert-success"
when :info then "alert alert-info"
when :alert then "alert alert-danger"
when :warning then "alert alert-warning"
end
end
def active_page(active_page)
#active == active_page ? "active" : ""
end
messages helper
def unread_messages_count
# how to get the number of unread messages for the current user
# using mailboxer
messages.inbox(:unread => true).count(:id, :distinct => true)
end
messages views folder has:
_folder_view.html.erb
<div class="row">
<div class="spacer"></div>
<div class="col-md-12">
<!-- we'll configure this to compose new conversations later -->
<%= link_to "Compose", "#", class: "btn btn-success" %>
<div class="spacer"></div>
</div>
<div class="col-md-4">
<div class="panel panel-default">
<div class="panel-body">
<%= render 'messages/folders' %>
</div>
</div>
</div>
<div class="col-md-8">
<div class="panel panel-default">
<div class="panel-body">
<!-- individual conversations will show here -->
</div>
</div>
</div>
</div>
view raw
_folders.html.erb
<ul class="nav nav-pills nav-stacked">
<li class="<%= active_page(:inbox) %>">
<%= link_to messages_inbox_path do %>
<span class="label label-danger pull-right"><%=unread_messages_count%></span>
<em class="fa fa-inbox fa-lg"></em>
<span>Inbox</span>
<% end %>
</li>
<li class="<%= active_page(:sent) %>">
<%= link_to messages_sent_path do %>
<em class="fa fa-paper-plane-o fa-lg"></em>
<span>Sent</span>
<% end %>
</li>
<li class="<%= active_page(:trash) %>">
<%= link_to messages_trash_path do %>
<em class="fa fa-trash-o fa-lg"></em>
<span>Trash</span>
<% end %>
</li>
</ul>
each of inbox.html.er, sent.html.erb and trash.html.erb
<%= render partial: 'messages/folder_view' %>
routes.rb
get "messages/inbox" => "messages#inbox", as: :messages_inbox
get "messages/sent" => "messages#sent", as: :messages_sent
get "messages/trash" => "messages#trash", as: :messages_trash
Application controller:
helper_method :messages
private
def messages
#messages ||= current_user.messages
end
Can anyone see where I've gone wrong?
I'm up to tutorial step that says: Clicking the inbox link should take you to our up and running inbox page with navigation already in place for the inbox, sent and trash folders.
Instead, I get an error message that says:
NoMethodError in MessagesController#inbox
undefined method `inbox' for #<ActiveRecord::Associations::CollectionProxy []>
Can anyone see what's wrong?

Answer 1

You've forgot to add helper method messages to ApplicationController as it made in tutorial:
class ApplicationController < ActionController::Base
# [...]
helper_method :messages
private
def messages
#messages ||= current_user.mailbox
end
protected
# [...]
end
Update 1
I see that in your helper you have current_user.messages in should be current_user.mailbox