Using POROs to test ideas

Given at the July Ruby meetup in Sydney. Rails encourages bad designs. Using POROs can save you from some of the traps you fall into when using Rails.

Transcript

1. Using POROs to test ideas
2. Core Finished in 5 minutes 22 seconds 1321 examples, 0 failures 3.2 second startup time
3. http://xkcd.com/657 controllers models views
4. Rails encourages bad ideas
5. Hero worship of DHH
6. Hero worship of me "he wrote a book!"
7. Turbolinks
8. Concerns*
9. Model Design
10. Callbacks
11. - TJ Holowaychuk https://medium.com/code-adventures/farewell-node-js-4ba9e7f3e52b
12. Spree::LineItem 11 different callbacks
13. 1) Spree::OrderContents update cart changes item quantity Failure/Error: subject.update_cart params NoMethodError: undefined method `should_track_inventory?' for nil:NilClass # ./app/models/spree/stock/quantifier.rb:12:in `total_on_hand' # ./app/models/spree/stock/quantifier.rb:24:in `can_supply?' # ./app/models/spree/stock/availability_validator.rb:15:in `validate' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:447:in `public_send' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:447:in `block in make_lambda' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:376:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `block in run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:317:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:70:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:304:in `association_valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `block in validate_collection_association' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `each' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `validate_collection_association' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:207:in `block in add_autosave_association_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:153:in `instance_eval' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:153:in `block in define_non_cyclic_method' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:424:in `block in make_lambda' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:376:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `block in run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:317:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:70:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:77:in `perform_validations' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:51:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/attribute_methods/dirty.rb:21:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:268:in `block (2 levels) in save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:329:in `block in with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:209:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:208:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:326:in `with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:268:in `block in save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:283:in `rollback_active_record_state!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:267:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/persistence.rb:232:in `block in update' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:329:in `block in with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:211:in `block in transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:219:in `within_new_transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:211:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:208:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:326:in `with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/persistence.rb:230:in `update' # ./app/models/spree/order_contents.rb:29:in `update_cart' # ./spec/models/spree/order_contents_spec.rb:127:in `block (3 levels) in <top (required)>' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `instance_eval' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `block in run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_exec' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_eval_with_args' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:247:in `instance_eval_with_args' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:106:in `block (2 levels) in run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:446:in `run_hook' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:340:in `run_around_each_hooks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:256:in `with_around_each_hooks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:111:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:390:in `block in run_examples' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `map' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `run_examples' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:371:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:372:in `block in run' https://gist.github.com/radar/752c14db65a2cb09293a
14. 1) Spree::OrderContents update cart changes item quantity Failure/Error: subject.update_cart params NoMethodError: undefined method `should_track_inventory?' for nil:NilClass # ./app/models/spree/stock/quantifier.rb:12:in `total_on_hand' # ./app/models/spree/stock/quantifier.rb:24:in `can_supply?' # ./app/models/spree/stock/availability_validator.rb:15:in `validate' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:447:in `public_send' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:447:in `block in make_lambda' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:376:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `block in run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:317:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:70:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:304:in `association_valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `block in validate_collection_association' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `each' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:293:in `validate_collection_association' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:207:in `block in add_autosave_association_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:153:in `instance_eval' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/autosave_association.rb:153:in `block in define_non_cyclic_method' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:424:in `block in make_lambda' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:184:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:185:in `block in simple' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:376:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `block in run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:113:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:149:in `block in halting_and_conditional' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:166:in `block in halting' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activesupport-4.1.1/lib/active_support/callbacks.rb:86:in `run_callbacks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations/callbacks.rb:111:in `run_validations!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activemodel-4.1.1/lib/active_model/validations.rb:317:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:70:in `valid?' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:77:in `perform_validations' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/validations.rb:51:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/attribute_methods/dirty.rb:21:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:268:in `block (2 levels) in save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:329:in `block in with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:209:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:208:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:326:in `with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:268:in `block in save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:283:in `rollback_active_record_state!' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:267:in `save' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/persistence.rb:232:in `block in update' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:329:in `block in with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:211:in `block in transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:219:in `within_new_transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/connection_adapters/abstract/database_statements.rb:211:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:208:in `transaction' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/transactions.rb:326:in `with_transaction_returning_status' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/activerecord-4.1.1/lib/active_record/persistence.rb:230:in `update' # ./app/models/spree/order_contents.rb:29:in `update_cart' # ./spec/models/spree/order_contents_spec.rb:127:in `block (3 levels) in <top (required)>' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `instance_eval' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:114:in `block in run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:179:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_exec' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/extensions/instance_eval_with_args.rb:16:in `instance_eval_with_args' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:247:in `instance_eval_with_args' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:106:in `block (2 levels) in run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `call' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:108:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/hooks.rb:446:in `run_hook' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:340:in `run_around_each_hooks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:256:in `with_around_each_hooks' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example.rb:111:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:390:in `block in run_examples' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `map' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:386:in `run_examples' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:371:in `run' # /Users/ryanbigg/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rspec-core-2.14.8/lib/rspec/core/example_group.rb:372:in `block in run'
15. # ./app/models/spree/stock/quantifier.rb:12 … <a gajillion lines of stacktrace> # ./app/models/spree/order_contents.rb:29 … # ./spec/models/spree/order_contents_spec.rb:127 …
16. AddVariant.perform(order, line_item)
17. You don't need Rails.
18. Sketch out ideas using Ruby.
19. Plain Old Ruby Object
20. Lotus is doing good things. http://github.com/lotus (but isn't quite there yet)
23. You don't need Active Record.
24. Use Sequel:
25. sequel (4.12) > activerecord (4.1)
26. Spree (2.3) > Magento (1.9)
27. Chrome (35) > Firefox (30) > Opera (22) > IE (11) > Safari (6)
28. Use Sequel:
29. Extract out to a module:
30. Test using "Fakes":
31. Test using "Fakes":
32. Using Sequel::Model
33. Using Sequel::Model
34. Spree PORO http://github.com/radar/spree_poro Finished in 0.04455 seconds 52 examples, 0 failures
35. Future Spree Core? Finished in 1 minute 11 seconds 1321 examples, 0 failures
36. Spree PORO http://github.com/radar/spree_poro Syd PORO http://github.com/radar/syd-poro