Missing Template for signout - ruby-on-rails

Question

Finally after about two hours of messing with this thing, I have figured out most of my 7 errors. That said, I have a new one, and I have no clue how to get rid of it. I seem to be having the same issue I did with a similar question I asked, and that was before I started over with my most recent git commit. Needless to say, I am not amused right now. Anyway, here's the failure:
1) Authentication signin with valid information followed by signout
Failure/Error: before { click_link "Sign out" }
ActionView::MissingTemplate:
Missing template sessions/destroy, application/destroy with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/Users/Brawain/rails_projects/sample_app/app/views"
# ./spec/requests/authentication_pages_spec.rb:45:in `block (5 levels) in <top (required)>'
I actually don't know what code is necessary, so I'll post all my sessions stuff and the spec that's giving me trouble.
authentication spec
require 'spec_helper'
describe "Authentication" do
subject { page }
describe "signin page" do
before { visit signin_path }
it { should have_content('Sign in') }
it { should have_title('Sign in') }
end
describe "signin" do
before { visit signin_path }
describe "with invalid information" do
before { click_button "Sign in" }
it { should have_title('Sign in') }
it { should have_selector('div.alert.alert-error') }
describe "after visiting another page" do
before { click_link "Home" }
it { should_not have_selector('div.alert.alert-error') }
end
end
describe "with valid information" do
let(:user) { FactoryGirl.create(:user) }
before do
visit '/signin'
fill_in "Email", with: user.email.upcase
fill_in "Password", with: user.password
click_button "Sign in"
end
it { should have_title(user.first) }
it { should have_link('Profile', href: user_path(user)) }
it { should have_link('Sign out', href: signout_path) }
it { should_not have_link('Sign in', href: signin_path) }
describe "followed by signout" do
before { click_link "Sign out" }
it { should have_link('Sign in') }
end
end
end
end
sessions helper
module SessionsHelper
def sign_in(user)
remember_token = User.new_remember_token
cookies.permanent[:remember_token] = remember_token
user.update_attribute(:remember_token, User.encrypt(remember_token))
self.current_user = user
end
def signed_in?
!current_user.nil?
end
def current_user=(user)
#current_user = user
end
def current_user
remember_token = User.encrypt(cookies[:remember_token])
#current_user ||= User.find_by(remember_token: remember_token)
end
def destroy
sign_out
redirect_to root_url
end
def sign_out
current_user.update_attribute(:remember_token,
User.encrypt(User.new_remember_token))
cookies.delete(:remember_token)
self.current_user = nil
end
end
sessions controller
class SessionsController < ApplicationController
def new
end
def create
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
sign_in user
redirect_to user
else
flash.now[:error] = 'Invalid email/password combination'
render 'new'
end
end
def destroy
end
end
sessions/new.html.erb
<% provide(:title, "Sign in") %>
<h1>Sign in</h1>
<div class="row">
<div class="span6 offset3">
<%= form_for(:session, url: sessions_path) do |f| %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= f.label :password %>
<%= f.password_field :password %>
<%= f.submit "Sign in", class: "btn btn-large btn-primary" %>
<% end %>
<p>New user? <%= link_to "Sign up now!", signup_path %></p>
</div>
</div>
This isn't the whole page, but this is my body html code. I've included it because it has the pertinent links.
<div id="announcements">
TESTER TIME!
<% if signed_in? %>
<li><%= link_to "Users", '#' %></li>
<li id="fat-menu" class="dropdown">
Account <b class="caret"></b>
<ul class="dropdown-menu">
<li><%= link_to "Profile", current_user %></li>
<li><%= link_to "Settings", '#' %></li>
<li class="divider"></li>
<li><%= link_to "Sign out", signout_path, method: "delete" %></li>
</ul>
</li>
<% else %>
<li><%= link_to "Sign in", signin_path %></li>
<% end %>
</div>

Answer 1

You need to destroy session in destroy function and then if you don't want to dislay any logout screen then redirect_to root_path
Mostly people redirect after logout

Answer 2

You must implement destroy method in SessionsController, not in SessionsHelper. Just move this method ( "destroy") from SessionsHelper to SessionsController. It should be like this:
sessions_controller.rb
class SessionsController < ApplicationController
...
def destroy
sign_out
redirect_to root_url
end
end
sessions_helper.rb
module SessionsHelper
...
def sign_out
current_user.update_attribute(:remember_token,
User.encrypt(User.new_remember_token))
cookies.delete(:remember_token)
self.current_user = nil
end