NoMethodError in Statuses#index - ruby-on-rails

Question

I get the following error when I try running my ruby on rails application:
NoMethodError in Statuses#index
undefined method `full_name' for #<Status:0x3fe0e38>
I don't understand why I am getting this error, I would appreciate if someone could point out where I've gone wrong!
Index.html.erb
<div class="page-header">
<h1>All Statuses</h1>
</div>
<%= link_to "Post A New Status", new_status_path, class: "btn btn-success" %>
<% #statuses.each do |status| %>
<div class="status">
<strong><%= status.full_name %></strong>
<p><%= status.content %></p></div>
<div class="meta">
<%= link_to time_ago_in_words(status.created_at) + " ago", status %>
<span class="admin">
| <%= link_to "Edit", edit_status_path(status) %> |
<%= link_to "Delete", status, method: :delete, data: { confirm: "Are you sure your want to delete this status?"} %>
</span>
</div>
</div>
<% end %>
User.rb
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :token_authenticatable, :confirmable,
# :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
# Setup accessible (or protected) attributes for your model
attr_accessible :email, :password, :password_confirmation, :remember_me,
:first_name, :last_name, :profile_name
# attr_accessible :title, :body
has_many :statuses
def full_name
first_name + " " + last_name
end
end
statuses_controller.rb
class StatusesController < ApplicationController
# GET /statuses
# GET /statuses.json
def index
#statuses = Status.all
respond_to do |format|
format.html # index.html.erb
format.json { render json: #statuses }
end
end
# GET /statuses/1
# GET /statuses/1.json
def show
#status = Status.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { render json: #status }
end
end
# GET /statuses/new
# GET /statuses/new.json
def new
#status = Status.new
respond_to do |format|
format.html # new.html.erb
format.json { render json: #status }
end
end
# GET /statuses/1/edit
def edit
#status = Status.find(params[:id])
end
# POST /statuses
# POST /statuses.json
def create
#status = Status.new(params[:status])
respond_to do |format|
if #status.save
format.html { redirect_to #status, notice: 'Status was successfully created.' }
format.json { render json: #status, status: :created, location: #status }
else
format.html { render action: "new" }
format.json { render json: #status.errors, status: :unprocessable_entity }
end
end
end
# PUT /statuses/1
# PUT /statuses/1.json
def update
#status = Status.find(params[:id])
respond_to do |format|
if #status.update_attributes(params[:status])
format.html { redirect_to #status, notice: 'Status was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: "edit" }
format.json { render json: #status.errors, status: :unprocessable_entity }
end
end
end
# DELETE /statuses/1
# DELETE /statuses/1.json
def destroy
#status = Status.find(params[:id])
#status.destroy
respond_to do |format|
format.html { redirect_to statuses_url }
format.json { head :no_content }
end
end
end

Answer 1

You are calling full_name on a status object, yet the method is defined in the user model. If you want the user's full name iterating through statuses you would do something like:
<%= status.user.full_name %>
assuming the association in Status exists for user

Answer 2

Because a Status does not have a full_name.
Your User model does, but you do not appear to be attempting to display a user, rather the statuses. It appears each user has unique statuses, so you could just print the status's user's full name.
That said, unless you really need arbitrary statuses per user, normally you might have a status table, and related users to statuses with a join table, which would make this technique unsuitable.

Answer 3

Really, you should be calling full_name on the User Object not the Status object.
<strong><%= status.user.full_name %></strong>
Assuming they both are associated (with a belongs_to :user), this should work.