Hartl Chapter Error Before 9.1.3 - ruby-on-rails

Question

I'm going through Mr. Hartl's Tutorial and trying to copy it exactly, even kinda using his completed github code as a guide, but I'm stuck with the following after running the "bundle exec rspec spec/":
Failures:
1) Authentication signin with valid information
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
2) Authentication signin with valid information
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
3) Authentication signin with valid information
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
4) Authentication signin with valid information
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
5) Authentication signin with valid information
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
6) Authentication signin with valid information followed by signout
Failure/Error: before { sign_in user }
ActionView::MissingTemplate:
Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
* "/home/nemo/rails_projects/sample_app/app/views"
# ./spec/support/utilities.rb:19:in `sign_in'
# ./spec/requests/authentication_pages_spec.rb:32:in `block (4 levels) in <top (required)>'
7) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
AbstractController::ActionNotFound:
The action 'index' could not be found for UsersController
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
8) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
AbstractController::ActionNotFound:
The action 'index' could not be found for UsersController
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
9) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
AbstractController::ActionNotFound:
The action 'index' could not be found for UsersController
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
10) User pages profile page with invalid information
Failure/Error: before { click_button "Save changes" }
Capybara::ElementNotFound:
Unable to find button "Save changes"
# ./spec/requests/user_pages_spec.rb:76:in `block (4 levels) in <top (required)>'
11) User pages profile page page
Failure/Error: it { should have_content("Update your profile") }
expected #has_content?("Update your profile") to return true, got false
# ./spec/requests/user_pages_spec.rb:70:in `block (4 levels) in <top (required)>'
12) User pages profile page page
Failure/Error: it { should have_title("Edit user") }
expected #has_title?("Edit user") to return true, got false
# ./spec/requests/user_pages_spec.rb:71:in `block (4 levels) in <top (required)>'
13) User pages profile page page
Failure/Error: it { should have_link('change', href: 'http://gravatar.com/emails') }
expected #has_link?("change", {:href=>"http://gravatar.com/emails"}) to return true, got false
# ./spec/requests/user_pages_spec.rb:72:in `block (4 levels) in <top (required)>'
Finished in 1.83 seconds
53 examples, 13 failures
spec/requests/authentication_pages_spec.rb:
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', text: 'Invalid') }
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 { sign_in user }
it { should have_title(user.name) }
it { should have_link('Profile', href: user_path(user)) }
it { should have_link('Settings', href: edit_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
spec/requests/user_pages_spec.rb
require 'spec_helper'
describe "User pages" do
subject { page }
describe "signup page" do
before { visit signup_path }
it { should have_content('Sign up') }
it { should have_title(full_title('Sign up')) }
end
describe "profile page" do
let(:user) { FactoryGirl.create(:user) }
before { visit user_path(user) }
it { should have_content(user.name) }
it { should have_title(user.name) }
describe "signup" do
before { visit signup_path }
let(:submit) { "Create my account" }
describe "with invalid information" do
it "should not create a user" do
expect { click_button submit }.not_to change(User, :count)
end
describe "after submission" do
before { click_button submit }
it { should have_title('Sign up') }
it { should have_content('error') }
end
end
describe "with valid information" do
before do
fill_in "Name", with: "Example User"
fill_in "Email", with: "user#example.com"
fill_in "Password", with: "foobar"
fill_in "Confirmation", with: "foobar"
end
it "should create a user" do
expect { click_button submit }.to change(User, :count).by(1)
end
describe "after saving the user" do
before { click_button submit }
let(:user) { User.find_by(email: 'user#example.com') }
it { should have_link('Sign out') }
it { should have_title(user.name) }
it { should have_selector('div.alert.alert-success', text: 'Welcome') }
end
end
end
describe "edit" do
let(:user) { FactoryGirl.create(:user) }
before { visit edit_user_path(user) }
end
describe "page" do
it { should have_content("Update your profile") }
it { should have_title("Edit user") }
it { should have_link('change', href: 'http://gravatar.com/emails') }
end
describe "with invalid information" do
before { click_button "Save changes" }
it { should have_content('error') }
end
end
end
app/controllers/users_controller.rb
class UsersController < ApplicationController
def show
#user = User.find(params[:id])
end
def new
#user = User.new
end
def create
#user = User.new(user_params)
if #user.save
sign_in #user
flash[:success] = "Welcome to the Sample App!"
redirect_to #user
else
render 'new'
end
end
def edit
#user = User.find(params[:id])
end
def update
#user = User.find(params[:id])
if #user.update_attributes(user_params)
# Handle a successful update.
else
render 'edit'
end
end
private
def user_params
params.require(:user).permit(:name, :email, :password,
:password_confirmation)
end
end
app/views/users/edit.html.erb:
<% provide(:title, "Edit user") %>
<h1>Update your profile</h1>
<div class="row">
<div class="span6 offset3">
<%= form_for(#user) do |f| %>
<%= render 'shared/error_messages' %>
<%= f.label :name %>
<%= f.text_field :name %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= f.label :password %>
<%= f.password_field :password %>
<%= f.label :password_confirmation, "Confirm Password" %>
<%= f.password_field :password_confirmation %>
<%= f.submit "Save changes", class: "btn btn-large btn-primary" %>
<% end %>
<%= gravatar_for #user %>
change
</div>
</div>
I'm kind of a greenhorn at this, so let me know if you would like to inspect any of my other codes.
Added to the post, spec/support/utilities.rb:
include ApplicationHelper
RSpec::Matchers.define :have_error_message do |message|
match do |page|
page.should have_selector('div.alert.alert-error', text: 'Invalid')
end
end
def sign_in(user, options={})
if options[:no_capybara]
# Sign in when not using Capybara.
remember_token = User.new_remember_token
cookies[:remember_token] = remember_token
user.update_attribute(:remember_token, User.encrypt(remember_token))
else
visit signin_path
fill_in "Email", with: user.email
fill_in "Password", with: user.password
click_button "Sign in"
end
end
Added app/controllers/sessions_controller.rb
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 the user in and redirect to the user's show page.
else
flash.now[:error] = 'Invalid email/password combination'
render 'new'
end
end
def destroy
sign_out
redirect_to root_url
end
end
app/views/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>
I reverted some of the code to the following excerpt from previous tutorials to sessions_controller.rb:
.
.
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
.
.
It resulted in only 7 errors this time around.
Failures:
1) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
NoMethodError:
undefined method `paginate' for #<Class:0xa6de278>
# ./app/controllers/users_controller.rb:4:in `index'
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
2) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
NoMethodError:
undefined method `paginate' for #<Class:0xa6de278>
# ./app/controllers/users_controller.rb:4:in `index'
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
3) User pages profile page signup with valid information after saving the user
Failure/Error: before { visit user_path(user) }
NoMethodError:
undefined method `paginate' for #<Class:0xa6de278>
# ./app/controllers/users_controller.rb:4:in `index'
# ./spec/requests/user_pages_spec.rb:16:in `block (3 levels) in <top (required)>'
4) User pages profile page with invalid information
Failure/Error: before { click_button "Save changes" }
Capybara::ElementNotFound:
Unable to find button "Save changes"
# ./spec/requests/user_pages_spec.rb:76:in `block (4 levels) in <top (required)>'
5) User pages profile page page
Failure/Error: it { should have_content("Update your profile") }
expected #has_content?("Update your profile") to return true, got false
# ./spec/requests/user_pages_spec.rb:70:in `block (4 levels) in <top (required)>'
6) User pages profile page page
Failure/Error: it { should have_title("Edit user") }
expected #has_title?("Edit user") to return true, got false
# ./spec/requests/user_pages_spec.rb:71:in `block (4 levels) in <top (required)>'
7) User pages profile page page
Failure/Error: it { should have_link('change', href: 'http://gravatar.com/emails') }
expected #has_link?("change", {:href=>"http://gravatar.com/emails"}) to return true, got false
# ./spec/requests/user_pages_spec.rb:72:in `block (4 levels) in <top (required)>'
Finished in 1.88 seconds
53 examples, 7 failures
Failed examples:
rspec ./spec/requests/user_pages_spec.rb:57 # User pages profile page signup with valid information after saving the user
rspec ./spec/requests/user_pages_spec.rb:58 # User pages profile page signup with valid information after saving the user
rspec ./spec/requests/user_pages_spec.rb:59 # User pages profile page signup with valid information after saving the user
rspec ./spec/requests/user_pages_spec.rb:78 # User pages profile page with invalid information
rspec ./spec/requests/user_pages_spec.rb:70 # User pages profile page page
rspec ./spec/requests/user_pages_spec.rb:71 # User pages profile page page
rspec ./spec/requests/user_pages_spec.rb:72 # User pages profile page page

Answer 1

It looks like the problem is with your Sessions#create method:
def create
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
# Sign the user in and redirect to the user's show page.
else
flash.now[:error] = 'Invalid email/password combination'
render 'new'
end
end
I suspect you you are ending up where you have the comment, at which point it "falls through" to the Rails standard controller code which then looks for the create sessions view corresponding to this being the create controller method.
If you check out the corresponding code in the Hartl github repository, its:
def create
user = User.authenticate(params[:session][:email],
params[:session][:password])
if user.nil?
flash.now[:error] = "Invalid email/password combination."
#title = "Sign in"
render 'new'
else
sign_in user
redirect_back_or user
end
end
As to how you got there, it appears that the sign_in user method was successful in getting to and through your Sessions new controller and view code. The submit in your view took you to the Sessions#create point.