12.1 Iteration G1: Capturing an Order 11.4 Iteration F4: Hide an Empty Cart
Verify that yes, indeed, the product index is broken.
get /products
Showing /home/rubys/svn/rails4/Book/util/work-188/depot/app/views/layouts/application.html.erb where line #21 raised:
undefined method `line_items' for nil:NilClassExtracted source (around line #21):
18: <div id="side">
19: <!-- START_HIGHLIGHT -->
20: <!-- START:hidden_div -->
21: <%= hidden_div_if(@cart.line_items.empty?, :id => "cart") do %>
22: <%= render @cart %>
23: <% end %>
24: <!-- END:hidden_div -->
Rails.root: /home/rubys/svn/rails4/Book/util/work-188/depot
app/views/layouts/application.html.erb:21
app/controllers/products_controller.rb:7:in `index'/home/rubys/git/rails/activesupport/lib/active_support/whiny_nil.rb:48:in `method_missing'
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:134:in `send'
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:134:in `render'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:126:in `render'
/home/rubys/git/rails/actionpack/lib/action_view/render/layouts.rb:84:in `_render_layout'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:61:in `_render_template'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:55:in `_render_template'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:25:in `render'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:114:in `_render_template'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:108:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/renderers.rb:47:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/compatibility.rb:55:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:101:in `render_to_string'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:92:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rendering.rb:17:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render'
/home/rubys/git/rails/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/benchmark.rb:309:in `realtime'
/home/rubys/git/rails/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:77:in `cleanup_view_runtime'
/home/rubys/git/rails/activerecord/lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:38:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:10:in `default_render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:258:in `retrieve_response_from_mimes'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:189:in `call'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:189:in `respond_to'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/base.rb:145:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rendering.rb:11:in `process_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/callbacks.rb:18:in `process_action'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:433:in `_run__1029162686__process_action__199225275__callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:408:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:408:in `_run_process_action_callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `run_callbacks'
/home/rubys/git/rails/actionpack/lib/abstract_controller/callbacks.rb:17:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:28:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rescue.rb:8:in `process_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/base.rb:114:in `process'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:40:in `process'
/home/rubys/git/rails/actionpack/lib/action_controller/metal.rb:126:in `dispatch'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
/home/rubys/git/rails/actionpack/lib/action_controller/metal.rb:166:in `action'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:27:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:27:in `call'
rack-mount (0.6.3) lib/rack/mount/route_set.rb:148:in `call'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:89:in `recognize'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:66:in `optimized_each'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:88:in `recognize'
rack-mount (0.6.3) lib/rack/mount/route_set.rb:139:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:454:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.1.0) lib/rack/methodoverride.rb:24:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/flash.rb:177:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/session/abstract_store.rb:106:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/cookies.rb:235:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:31:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:11:in `cache'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:30:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:365:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:46:in `call'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:414:in `_run_call_callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `run_callbacks'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.1.0) lib/rack/sendfile.rb:105:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:48:in `call'
/home/rubys/git/rails/railties/lib/rails/rack/logger.rb:14:in `call'
rack (1.1.0) lib/rack/runtime.rb:17:in `call'
/home/rubys/git/rails/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.1.0) lib/rack/lock.rb:11:in `call'
rack (1.1.0) lib/rack/lock.rb:11:in `synchronize'
rack (1.1.0) lib/rack/lock.rb:11:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/static.rb:30:in `call'
/home/rubys/git/rails/railties/lib/rails/application.rb:145:in `call'
/home/rubys/git/rails/railties/lib/rails/application.rb:81:in `send'
/home/rubys/git/rails/railties/lib/rails/application.rb:81:in `method_missing'
/home/rubys/git/rails/railties/lib/rails/rack/log_tailer.rb:15:in `call'
rack (1.1.0) lib/rack/content_length.rb:13:in `call'
rack (1.1.0) lib/rack/handler/webrick.rb:48:in `service'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/server.rb:162/home/rubys/git/rails/activesupport/lib/active_support/whiny_nil.rb:48:in `method_missing'
app/views/layouts/application.html.erb:21
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:134:in `send'
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:134:in `render'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_view/template.rb:126:in `render'
/home/rubys/git/rails/actionpack/lib/action_view/render/layouts.rb:84:in `_render_layout'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:61:in `_render_template'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:55:in `_render_template'
/home/rubys/git/rails/actionpack/lib/action_view/render/rendering.rb:25:in `render'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:114:in `_render_template'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:108:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/renderers.rb:47:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/compatibility.rb:55:in `render_to_body'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:101:in `render_to_string'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:92:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rendering.rb:17:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render'
/home/rubys/git/rails/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/benchmark.rb:309:in `realtime'
/home/rubys/git/rails/activesupport/lib/active_support/core_ext/benchmark.rb:5:in `ms'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:39:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:77:in `cleanup_view_runtime'
/home/rubys/git/rails/activerecord/lib/active_record/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:38:in `render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:10:in `default_render'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:258:in `retrieve_response_from_mimes'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:189:in `call'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/mime_responds.rb:189:in `respond_to'
app/controllers/products_controller.rb:7:in `index'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/base.rb:145:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rendering.rb:11:in `process_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/callbacks.rb:18:in `process_action'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:433:in `_run__1029162686__process_action__199225275__callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:408:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:408:in `_run_process_action_callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `run_callbacks'
/home/rubys/git/rails/actionpack/lib/abstract_controller/callbacks.rb:17:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
/home/rubys/git/rails/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `__send__'
/home/rubys/git/rails/activesupport/lib/active_support/notifications.rb:48:in `instrument'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/instrumentation.rb:28:in `process_action'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rescue.rb:8:in `process_action'
/home/rubys/git/rails/actionpack/lib/abstract_controller/base.rb:114:in `process'
/home/rubys/git/rails/actionpack/lib/abstract_controller/rendering.rb:40:in `process'
/home/rubys/git/rails/actionpack/lib/action_controller/metal.rb:126:in `dispatch'
/home/rubys/git/rails/actionpack/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
/home/rubys/git/rails/actionpack/lib/action_controller/metal.rb:166:in `action'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:27:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:27:in `call'
rack-mount (0.6.3) lib/rack/mount/route_set.rb:148:in `call'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:89:in `recognize'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:66:in `optimized_each'
rack-mount (0.6.3) lib/rack/mount/code_generation.rb:88:in `recognize'
rack-mount (0.6.3) lib/rack/mount/route_set.rb:139:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/routing/route_set.rb:454:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.1.0) lib/rack/methodoverride.rb:24:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/flash.rb:177:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/session/abstract_store.rb:106:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/cookies.rb:235:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:31:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:11:in `cache'
/home/rubys/git/rails/activerecord/lib/active_record/query_cache.rb:30:in `call'
/home/rubys/git/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:365:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:46:in `call'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:414:in `_run_call_callbacks'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `send'
/home/rubys/git/rails/activesupport/lib/active_support/callbacks.rb:88:in `run_callbacks'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.1.0) lib/rack/sendfile.rb:105:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:48:in `call'
/home/rubys/git/rails/railties/lib/rails/rack/logger.rb:14:in `call'
rack (1.1.0) lib/rack/runtime.rb:17:in `call'
/home/rubys/git/rails/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.1.0) lib/rack/lock.rb:11:in `call'
rack (1.1.0) lib/rack/lock.rb:11:in `synchronize'
rack (1.1.0) lib/rack/lock.rb:11:in `call'
/home/rubys/git/rails/actionpack/lib/action_dispatch/middleware/static.rb:30:in `call'
/home/rubys/git/rails/railties/lib/rails/application.rb:145:in `call'
/home/rubys/git/rails/railties/lib/rails/application.rb:81:in `send'
/home/rubys/git/rails/railties/lib/rails/application.rb:81:in `method_missing'
/home/rubys/git/rails/railties/lib/rails/rack/log_tailer.rb:15:in `call'
rack (1.1.0) lib/rack/content_length.rb:13:in `call'
rack (1.1.0) lib/rack/handler/webrick.rb:48:in `service'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/home/rubys/.rvm/rubies/ruby-1.8.8-r28169/lib/ruby/1.8/webrick/server.rb:162Parameters:
None
_csrf_token: "r1KJA5xBdCNg3nG6m+CcbdnnhuGUz2FktZAvBUQsqNc=" cart_id: 3 session_id: "2fb601800c02e6f5ebbdaf6669af6bae"
GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/html"
HTTP_COOKIE: "_depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMXIxS0pBNXhCZENOZzNuRzZtK0NjYmRubmh1R1V6MkZrdFpBdkJVUXNxTmM9Ig9zZXNzaW9uX2lkIiUyZmI2MDE4MDBjMDJlNmY1ZWJiZGFmNjY2OWFmNmJhZSIMY2FydF9pZGkI--5b9fb699f0f45cf52c2c63091e965b6bbebb7e46; path=/; HttpOnly"
HTTP_HOST: "localhost:3000"
HTTP_VERSION: "HTTP/1.1"
PATH_INFO: "/products"
QUERY_STRING: ""
REMOTE_ADDR: "127.0.0.1"
REMOTE_HOST: "localhost"
REQUEST_METHOD: "GET"
REQUEST_PATH: "/"
REQUEST_URI: "http://localhost:3000/products"
SCRIPT_NAME: ""
SERVER_NAME: "localhost"
SERVER_PORT: "3000"
SERVER_PROTOCOL: "HTTP/1.1"
SERVER_SOFTWARE: "WEBrick/1.3.1 (Ruby/1.8.8/2010-06-05)"
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path=/; HttpOnly", "SCRIPT_NAME"=>"", "action_dispatch.parameter_filter"=>[:password], "HTTP_VERSION"=>"HTTP/1.1", "rack.multithread"=>false, "HTTP_COOKIE"=>"_depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMXIxS0pBNXhCZENOZzNuRzZtK0NjYmRubmh1R1V6MkZrdFpBdkJVUXNxTmM9Ig9zZXNzaW9uX2lkIiUyZmI2MDE4MDBjMDJlNmY1ZWJiZGFmNjY2OWFmNmJhZSIMY2FydF9pZGkI--5b9fb699f0f45cf52c2c63091e965b6bbebb7e46; path=/; HttpOnly", "action_dispatch.request.request_parameters"=>{}, "action_dispatch.cookies"=>{"HttpOnly"=>nil, "_depot_session"=>"BAh7CCIQX2NzcmZfdG9rZW4iMXIxS0pBNXhCZENOZzNuRzZtK0NjYmRubmh1R1V6MkZrdFpBdkJVUXNxTmM9Ig9zZXNzaW9uX2lkIiUyZmI2MDE4MDBjMDJlNmY1ZWJiZGFmNjY2OWFmNmJhZSIMY2FydF9pZGkI--5b9fb699f0f45cf52c2c63091e965b6bbebb7e46", "path"=>"/"}, "rack.multiprocess"=>false, "REQUEST_URI"=>"http://localhost:3000/products", "rack.request.query_hash"=>{}, "SERVER_PORT"=>"3000", "action_controller.instance"=>#<ProductsController:0xb665e24c @_request=#<ActionDispatch::Request:0xb665d8c4 @env={...}, @filtered_parameters={"action"=>"index", "controller"=>"products"}, @method="GET", @request_method="GET", @fullpath="/products">, @_headers={"Content-Type"=>"text/html"}, @view_context_class=nil, @_response=#<ActionDispatch::Response:0xb665d5e0 @blank=false, @sending_file=false, @content_type="text/html", @cache_control={}, @cookie=[], @request=#<ActionDispatch::Request:0xb665d8c4 @env={...}, @filtered_parameters={"action"=>"index", "controller"=>"products"}, @method="GET", @request_method="GET", @fullpath="/products">, @length=0, @body=[], @status=200, @writer=#<Proc:0xb6c31520@/home/rubys/git/rails/actionpack/lib/action_dispatch/http/response.rb:44>, @etag=nil, @header={}, @block=nil>, @_initialized_process_action_callbacks=true, @config=#<OrderedHash {}>, @_action_name="index", @_env={...}, @products=[#<Product id: 4, title: "Debug It!", description: "<p>\n Professional programmers develop a knac...", image_url: "/images/debug.jpg", price: #<BigDecimal:b65021b4,'0.3495E2',8(8)>, created_at: "2010-06-06 12:52:39", updated_at: "2010-06-06 12:52:39">, #<Product id: 3, title: "Programming Ruby 1.9", description: "<p>\n Ruby is the fastest growing and most ex...", image_url: "/images/ruby.jpg", price: #<BigDecimal:b6f8d354,'0.495E2',8(8)>, created_at: "2010-06-06 12:52:39", updated_at: "2010-06-06 12:52:39">, #<Product id: 2, title: "Web Design for Developers", description: "<p>\n <em>Web Design for Developers</em> will ...", image_url: "/images/wd4d.jpg", price: #<BigDecimal:b6f89830,'0.4295E2',8(8)>, created_at: "2010-06-06 12:52:39", updated_at: "2010-06-06 12:52:39">], @_status=200, @_response_body=nil, @lookup_context=#<ActionView::LookupContext:0xb665d158 @skip_default_locale=false, @frozen_formats=true, @details={:locale=>[:en, :en], :formats=>[:html], :handlers=>[:rjs, :erb, :rhtml, :builder, :rxml]}, @view_paths=[#<ActionView::FileSystemResolver:0xb6b5c80c @caching=false, @path=#<Pathname:/home/rubys/svn/rails4/Book/util/work-188/depot/app/views>, @cached={}>], @details_key=#<ActionView::LookupContext::DetailsKey:0xb675db20 @hash=-616895088>>, @action_has_layout=true>, "rack.session.options"=>{:id=>"2fb601800c02e6f5ebbdaf6669af6bae", :httponly=>true, :expire_after=>nil, :path=>"/", :domain=>nil, :secure=>false}, "REQUEST_METHOD"=>"GET", "rack.request.query_string"=>"", "action_dispatch.request.content_type"=>nil, "rack.input"=>#<StringIO:0xb672dac4>, "QUERY_STRING"=>"", "GATEWAY_INTERFACE"=>"CGI/1.1"}, @trusted_proxies=/(^127\.0\.0\.1$|^(10|172\.(1[6-9]|2[0-9]|30|31)|192\.168)\.)/i, @check_ip_spoofing=true>
action_dispatch.request.accepts: [#<Mime::Type:0xb7030b1c @synonyms=["application/xhtml+xml"], @string="text/html", @symbol=:html>]
action_dispatch.request.content_type: nil
action_dispatch.request.formats: [#<Mime::Type:0xb7030b1c @synonyms=["application/xhtml+xml"], @string="text/html", @symbol=:html>]
action_dispatch.request.parameters: {"action"=>"index", "controller"=>"products"}
action_dispatch.request.path_parameters: {:controller=>"products", :action=>"index"}
action_dispatch.request.query_parameters: {}
action_dispatch.request.request_parameters: {}
action_dispatch.request.symbolized_path_parameters: {:controller=>"products", :action=>"index"}
action_dispatch.secret_token: "21d0fd931f5c004bf7c6c1dbadeb0271123557a574f21d744399d91c6a47c1ee14eeabd5eddd2d5ef8a07d4cf2b705fd00b48d6f4a3ae22c9b86b0822b563e7a"
rack.errors: #<IO:0xb75f5174>
rack.input: #<StringIO:0xb672dac4>
rack.multiprocess: false
rack.multithread: false
rack.request.cookie_hash: {"HttpOnly"=>nil, "_depot_session"=>"BAh7CCIQX2NzcmZfdG9rZW4iMXIxS0pBNXhCZENOZzNuRzZtK0NjYmRubmh1R1V6MkZrdFpBdkJVUXNxTmM9Ig9zZXNzaW9uX2lkIiUyZmI2MDE4MDBjMDJlNmY1ZWJiZGFmNjY2OWFmNmJhZSIMY2FydF9pZGkI--5b9fb699f0f45cf52c2c63091e965b6bbebb7e46", "path"=>"/"}
rack.request.cookie_string: "_depot_session=BAh7CCIQX2NzcmZfdG9rZW4iMXIxS0pBNXhCZENOZzNuRzZtK0NjYmRubmh1R1V6MkZrdFpBdkJVUXNxTmM9Ig9zZXNzaW9uX2lkIiUyZmI2MDE4MDBjMDJlNmY1ZWJiZGFmNjY2OWFmNmJhZSIMY2FydF9pZGkI--5b9fb699f0f45cf52c2c63091e965b6bbebb7e46; path=/; HttpOnly"
rack.request.query_hash: {}
rack.request.query_string: ""
rack.run_once: false
rack.session: {"_csrf_token"=>"r1KJA5xBdCNg3nG6m+CcbdnnhuGUz2FktZAvBUQsqNc=", "session_id"=>"2fb601800c02e6f5ebbdaf6669af6bae", "cart_id"=>3}
rack.session.options: {:id=>"2fb601800c02e6f5ebbdaf6669af6bae", :httponly=>true, :expire_after=>nil, :path=>"/", :domain=>nil, :secure=>false}
rack.url_scheme: "http"
rack.version: [1, 1]Headers:
None
Conditionally display the cart.
edit app/views/layouts/application.html.erb
<% if @cart %>
<%= hidden_div_if(@cart.line_items.empty?, :id => "cart") do %>
<%= render @cart %>
<% end %>
<% end %>
Update the redirect test.
edit test/functional/line_items_controller_test.rb
test "should create line_item" do
assert_difference('LineItem.count') do
post :create, :product_id => products(:ruby).id
end
assert_redirected_to store_path
end
Add an AJAX test.
edit test/functional/line_items_controller_test.rb
test "should create line_item via ajax" do
assert_difference('LineItem.count') do
xhr :post, :create, :product_id => products(:ruby).id
end
assert_response :success
assert_select 'tr#current_item', /Programming Ruby 1.9/
end
Run the tests again.
rake test
(in /home/rubys/svn/rails4/Book/util/work-188/depot)
Loaded suite /home/rubys/.rvm/gems/ruby-1.8.8-r28169%global/gems/rake-0.8.7/lib/rake/rake_test_loader
Started
........
Finished in 2.851085 seconds.
8 tests, 29 assertions, 0 failures, 0 errors
Loaded suite /home/rubys/.rvm/gems/ruby-1.8.8-r28169%global/gems/rake-0.8.7/lib/rake/rake_test_loader
Started
........................
Finished in 0.605708 seconds.
24 tests, 40 assertions, 0 failures, 0 errors
Save our progress
git commit -a -m "AJAX"
Created commit 0bed0b9: AJAX
3 files changed, 39 insertions(+), 4 deletions(-)
git tag iteration-g
12.1 Iteration G1: Capturing an Order 11.4 Iteration F4: Hide an Empty Cart