11.6 Iteration F6: Testing AJAX changes 11.4 Iteration F4: Hide an Empty Cart
Review our current storefront markup
edit app/views/store/index.html.erb
<p id="notice"><%= notice %></p>
<h1>Your Pragmatic Catalog</h1>
<% cache ['store', Product.latest] do %>
<% @products.each do |product| %>
<% cache ['entry', product] do %>
<div class="entry">
<%= image_tag(product.image_url) %>
<h3><%= product.title %></h3>
<%= sanitize(product.description) %>
<div class="price_line">
<span class="price"><%= number_to_currency(product.price) %></span>
<%= button_to 'Add to Cart', line_items_path(product_id: product),
remote: true %>
</div>
</div>
<% end %>
<% end %>
<% end %>
Associate image clicks with submit button clicks
edit app/assets/javascripts/store.coffee
# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://coffeescript.org/
$(document).on "ready page:change", ->
$('.store .entry > img').click ->
$(this).parent().find(':submit').click()
The page looks no different
get /
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Run tests... oops.
rake test
Run options: --seed 62959
# Running:
....E..FEE..EEE..E.EE.........
Finished in 0.592429s, 50.6390 runs/s, 106.3419 assertions/s.
1) Error:
CartsControllerTest#test_should_get_index:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/carts_controller_test.rb:9:in `block in <class:CartsControllerTest>'
2) Failure:
LineItemsControllerTest#test_should_create_line_item [/home/rubys/git/awdwr/edition4/work-224-42/depot/test/controllers/line_items_controller_test.rb:28]:
Expected response to be a redirect to <http://test.host/carts/980190963> but was a redirect to <http://test.host/>.
Expected "http://test.host/carts/980190963" to be === "http://test.host/".
3) Error:
LineItemsControllerTest#test_should_get_edit:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/line_items_controller_test.rb:39:in `block in <class:LineItemsControllerTest>'
4) Error:
LineItemsControllerTest#test_should_get_index:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/line_items_controller_test.rb:9:in `block in <class:LineItemsControllerTest>'
5) Error:
LineItemsControllerTest#test_should_get_new:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/line_items_controller_test.rb:15:in `block in <class:LineItemsControllerTest>'
6) Error:
LineItemsControllerTest#test_should_show_line_item:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/line_items_controller_test.rb:34:in `block in <class:LineItemsControllerTest>'
7) Error:
ProductsControllerTest#test_should_get_new:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/products_controller_test.rb:24:in `block in <class:ProductsControllerTest>'
8) Error:
ProductsControllerTest#test_should_get_edit:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/products_controller_test.rb:44:in `block in <class:ProductsControllerTest>'
9) Error:
ProductsControllerTest#test_should_get_index:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/products_controller_test.rb:18:in `block in <class:ProductsControllerTest>'
10) Error:
ProductsControllerTest#test_should_show_product:
ActionView::Template::Error: undefined method `line_items' for nil:NilClass
app/views/layouts/application.html.erb:21:in `_app_views_layouts_application_html_erb___2845180968780230323_45728460'
test/controllers/products_controller_test.rb:39:in `block in <class:ProductsControllerTest>'
30 runs, 63 assertions, 1 failures, 9 errors, 0 skips
11.6 Iteration F6: Testing AJAX changes 11.4 Iteration F4: Hide an Empty Cart