Agile Web Development with Rails, Edition 4

11.6 Iteration F6: Testing AJAX changes 11.4 Iteration F4: Hide an Empty Cart

11.5 Iteration F5: Making Images Clickable

Review our current storefront markup

edit app/views/store/index.html.erb
<% if notice %>
<p id="notice"><%= notice %></p>
<% end %>
 
<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.js.coffee
 
 
$(document).on "ready page:change", ->
  $('.store .entry > img').click ->
    $(this).parent().find(':submit').click()

The page looks no different

get /

Getting started

Here’s how to get rolling:

  1. Use bin/rails generate to create your models and controllers

    To see all available options, run it without parameters.

  2. Set up a root route to replace this page

    You're seeing this page because you're running in development mode and you haven't set a root route yet.

    Routes are set up in config/routes.rb.

  3. Configure your database

    If you're not using SQLite (the default), edit config/database.yml with your username and password.

Run tests... oops.

rails test
DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from included at /home/rubys/.rvm/gems/ruby-2.3.0/gems/turbolinks-2.5.3/lib/turbolinks/xhr_url_for.rb:7)
DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from included at /home/rubys/.rvm/gems/ruby-2.3.0/gems/turbolinks-2.5.3/lib/turbolinks/xhr_url_for.rb:7)
rails aborted!
ActiveRecord::NoEnvironmentInSchemaError: 

    
Environment data not found in the schema. To resolve this issue, run: 

    

    
	bin/rails db:environment:set RAILS_ENV=test

    

    
/home/rubys/git/rails/activerecord/lib/active_record/migration.rb:1259:in `last_stored_environment'

    
/home/rubys/git/rails/activerecord/lib/active_record/tasks/database_tasks.rb:48:in `check_protected_environments!'

    
/home/rubys/git/rails/activerecord/lib/active_record/railties/databases.rake:11:in `block (2 levels) in <top (required)>'

    
/home/rubys/git/rails/activerecord/lib/active_record/railties/databases.rake:375:in `block (3 levels) in <top (required)>'

    
/home/rubys/git/rails/railties/lib/rails/commands/rake_proxy.rb:13:in `block in run_rake_task'

    
/home/rubys/git/rails/railties/lib/rails/commands/rake_proxy.rb:10:in `run_rake_task'

    
/home/rubys/git/rails/railties/lib/rails/commands/commands_tasks.rb:51:in `run_command!'

    
/home/rubys/git/rails/railties/lib/rails/command.rb:20:in `run'

    
/home/rubys/git/rails/railties/lib/rails/commands.rb:19:in `<top (required)>'

    
bin/rails:4:in `require'

    
bin/rails:4:in `<main>'

    
Tasks: TOP => db:test:load => db:test:purge => db:check_protected_environments

    
(See full trace by running task with --trace)

    
/home/rubys/git/rails/activerecord/lib/active_record/migration.rb:578:in `check_pending!':  (ActiveRecord::PendingMigrationError)

    

    
Migrations are pending. To resolve this issue, run:

    

    
	bin/rails db:migrate RAILS_ENV=test

    

    
	from /home/rubys/git/rails/activerecord/lib/active_record/migration.rb:591:in `load_schema_if_pending!'

    
	from /home/rubys/git/rails/activerecord/lib/active_record/migration.rb:597:in `block in maintain_test_schema!'

    
	from /home/rubys/git/rails/activerecord/lib/active_record/migration.rb:828:in `suppress_messages'

    
	from /home/rubys/git/rails/activerecord/lib/active_record/migration.rb:602:in `method_missing'

    
	from /home/rubys/git/rails/activerecord/lib/active_record/migration.rb:597:in `maintain_test_schema!'

    
	from /home/rubys/git/rails/railties/lib/rails/test_help.rb:15:in `<top (required)>'

    
	from /home/rubys/git/rails/activesupport/lib/active_support/dependencies.rb:302:in `require'

    
	from /home/rubys/git/rails/activesupport/lib/active_support/dependencies.rb:302:in `block in require'

    
	from /home/rubys/git/rails/activesupport/lib/active_support/dependencies.rb:268:in `load_dependency'

    
	from /home/rubys/git/rails/activesupport/lib/active_support/dependencies.rb:302:in `require'

    
	from /home/rubys/git/awdwr/edition4/work-230/depot/test/test_helper.rb:3:in `<top (required)>'

    
	from /home/rubys/git/awdwr/edition4/work-230/depot/test/controllers/carts_controller_test.rb:1:in `require'

    
	from /home/rubys/git/awdwr/edition4/work-230/depot/test/controllers/carts_controller_test.rb:1:in `<top (required)>'

    
	from /home/rubys/git/rails/railties/lib/rails/test_unit/test_requirer.rb:11:in `require'

    
	from /home/rubys/git/rails/railties/lib/rails/test_unit/test_requirer.rb:11:in `block in require_files'

    
	from /home/rubys/git/rails/railties/lib/rails/test_unit/test_requirer.rb:10:in `each'

    
	from /home/rubys/git/rails/railties/lib/rails/test_unit/test_requirer.rb:10:in `require_files'

    
	from /home/rubys/git/rails/railties/lib/rails/test_unit/minitest_plugin.rb:75:in `plugin_rails_init'

    
	from /home/rubys/.rvm/gems/ruby-2.3.0@global/gems/minitest-5.8.3/lib/minitest.rb:74:in `block in init_plugins'

    
	from /home/rubys/.rvm/gems/ruby-2.3.0@global/gems/minitest-5.8.3/lib/minitest.rb:72:in `each'

    
	from /home/rubys/.rvm/gems/ruby-2.3.0@global/gems/minitest-5.8.3/lib/minitest.rb:72:in `init_plugins'

    
	from /home/rubys/.rvm/gems/ruby-2.3.0@global/gems/minitest-5.8.3/lib/minitest.rb:123:in `run'

    
	from /home/rubys/git/rails/railties/lib/rails/commands/test.rb:9:in `<top (required)>'

    
	from /home/rubys/git/rails/railties/lib/rails/commands/commands_tasks.rb:138:in `require'

    
	from /home/rubys/git/rails/railties/lib/rails/commands/commands_tasks.rb:138:in `require_command!'

    
	from /home/rubys/git/rails/railties/lib/rails/commands/commands_tasks.rb:95:in `test'

    
	from /home/rubys/git/rails/railties/lib/rails/commands/commands_tasks.rb:49:in `run_command!'

    
	from /home/rubys/git/rails/railties/lib/rails/command.rb:20:in `run'

    
	from /home/rubys/git/rails/railties/lib/rails/commands.rb:19:in `<top (required)>'

    
	from bin/rails:4:in `require'

    
	from bin/rails:4:in `<main>'

    

      11.6 Iteration F6: Testing AJAX changes
      11.4 Iteration F4: Hide an Empty Cart