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Bringing UX to Your Code Joe Mastey @jmmastey

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@jmmastey Joe Mastey @jmmastey josephmastey.com chicagoapprenticeships.com

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@jmmastey I help companies build awesome internal education programs

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@jmmastey I’ve worked in software for a million years.

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@jmmastey I am not a UX designer / developer

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Don Norman

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@jmmastey

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@jmmastey “Norman discussed door handles at length.” - Wikipedia

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It’s not your fault

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@jmmastey

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@jmmastey Things We Ignore:

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@jmmastey Things We Ignore: 1. Anything invented a long time ago

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@jmmastey Things We Ignore: 1. Anything invented a long time ago 2. Anything invented by non-engineers

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@jmmastey < decades of research shit I made up

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@jmmastey We’re missing out

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@jmmastey Our code is an interface

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@jmmastey Our users are stressed

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@jmmastey

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@jmmastey Let’s try it!

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@jmmastey Gulf of Execution

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@jmmastey Is there an action that corresponds to my intentions?

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@jmmastey An example: deleting an ActiveRecord object

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@jmmastey macguffin.methods.sort

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@jmmastey [:!, :!=, :!~, :<=>, :==, :===, :=~, :Pathname, :[], : []=, :__class__, :__extend__, :__id__, :__instance_variable_defined_p__, :__instance_variable_get__, :__instance_variable_set__, :__instance_variables__, :__marshal__, :__respond_to_p__, :__send__ , :__show__, :_commit_callbacks, :_commit_callbacks=, :_commit_callbacks?, :_create_callbacks, :_create_callbacks=, :_create_callbacks?, :_destroy, :_destroy_callbacks, :_destroy_callbacks=, :_des troy_callbacks?, :_find_callbacks, :_find_callbacks=, :_find_callbacks?, :_initialize_callbacks, :_initialize_callbacks=, :_initialize_callbacks?, :_read_attribute, :_reflections, :_reflections=, :_reflections?, :_rollback_callbacks, :_rollback_callbacks=, :_rollback_callbacks?, :_run_commit_callbacks, :_run_create_callbacks, :_run_destroy_callbacks, :_run_find_callbacks, :_run_initialize_ callbacks, :_run_rollback_callbacks, :_run_save_callbacks, :_run_touch_callbacks, :_run_update_callbacks, :_run_validate_callbacks, :_run_validation_callbacks, :_save_callbacks, :_save_callbacks=, :_save_callbacks?, :_touch_callbacks, :_touch_callbacks=, :_touch_callbacks?, :_update_callbacks, :_update_callbacks=, :_update_callbacks?, :_validate_callbacks, :_validate_callbacks=, :_validate_ callbacks?, :_validation_callbacks, :_validation_callbacks=, :_validation_callbacks?, :_validators, :_validators=, :_validators?, :`, :acts_like?, :actually_destroyed?, :add_to_transaction, :after _add_for_categories, :after_add_for_categories=, :after_add_for_categories?, :after_add_for_enrollments, :after_add_for_enrollments=, :after_add_for_enrollments?, :after_add_for_skills, :after_add _for_skills=, :after_add_for_skills?, :after_add_for_users, :after_add_for_users=, :after_add_for_users?, :after_remove_for_categories, :after_remove_for_categories=, :after_remove_for_categories? , :after_remove_for_enrollments, :after_remove_for_enrollments=, :after_remove_for_enrollments?, :after_remove_for_skills, :after_remove_for_skills=, :after_remove_for_skills?, :after_remove_for_u sers, :after_remove_for_users=, :after_remove_for_users?, :aggregate_reflections, :aggregate_reflections=, :aggregate_reflections?, :approve, :approve!, :approve_transition, :approved?, :arel_attr ibutes_with_values_for_create, :arel_attributes_with_values_for_update, :as_json, :assign_attributes, :association, :association_cache, :attribute_aliases, :attribute_aliases?, :attribute_changed? , :attribute_changed_in_place?, :attribute_for_inspect, :attribute_method?, :attribute_method_matchers, :attribute_method_matchers?, :attribute_missing, :attribute_names, :attribute_present?, :att ribute_was, :attributes, :attributes=, :attributes_before_type_cast, :attributes_changed_by_setter, :autosave_associated_records_for_categories, :autosave_associated_records_for_enrollments, :auto save_associated_records_for_skills, :autosave_associated_records_for_users, :becomes, :becomes!, :before_add_for_categories, :before_add_for_categories=, :before_add_for_categories?, :before_add_f or_enrollments, :before_add_for_enrollments=, :before_add_for_enrollments?, :before_add_for_skills, :before_add_for_skills=, :before_add_for_skills?, :before_add_for_users, :before_add_for_users=, :before_add_for_users?, :before_remove_for_categories, :before_remove_for_categories=, :before_remove_for_categories?, :before_remove_for_enrollments, :before_remove_for_enrollments=, :before_remo ve_for_enrollments?, :before_remove_for_skills, :before_remove_for_skills=, :before_remove_for_skills?, :before_remove_for_users, :before_remove_for_users=, :before_remove_for_users?, :blank?, :ca che_key, :cache_timestamp_format, :cache_timestamp_format?, :can_approve?, :can_deprecate?, :can_hide?, :can_publish?, :capture, :categories, :categories=, :category_ids, :category_ids=, :changed, :changed?, :changed_attributes, :changed_for_autosave?, :changes, :changes_applied, :class, :class_eval, :clear_aggregation_cache, :clear_association_cache, :clear_changes_information, :clear_dest roy_state, :clear_transaction_record_state, :clone, :clone_attribute_value, :column_for_attribute, :committed!, :concern, :connection_handler, :created?, :created_at, :created_at=, :created_at?, : created_at_before_type_cast, :created_at_change, :created_at_changed?, :created_at_was, :created_at_will_change!, :decrement, :decrement!, :deep_dup, :default_connection_handler, :default_connecti on_handler?, :default_scopes, :default_timezone, :define_singleton_method, :defined_enums, :defined_enums=, :defined_enums?, :delete, :deprecate, :deprecate!, :deprecate_transition, :deprecated?, :description, :description=, :description?, :description_before_type_cast, :description_change, :description_changed?, :description_was, :description_will_change!, :destroy, :destroy!, :destroyed? , :destroyed_by_association, :destroyed_by_association=, :display, :dump_schema_after_migration, :dup, :duplicable?, :enable_warnings, :encode_with, :enrollment_ids, :enrollment_ids=, :enrollments , :enrollments=, :enum_for, :eql?, :equal?, :error_on, :errors, :errors_on, :extend, :find_by_statement_cache, :find_by_statement_cache=, :find_by_statement_cache?, :fire_events, :fire_events!, :f ire_status_event, :force_clear_transaction_record_state, :freeze, :from_json, :from_xml, :frozen?, :gem, :handle, :handle=, :handle?, :handle_before_type_cast, :handle_change, :handle_changed?, :h andle_was, :handle_will_change!, :has_attribute?, :has_transactional_callbacks?, :hash, :hidden?, :hide, :hide!, :hide_transition, :html_safe?, :human_status_name, :id, :id=, :id?, :id_before_type _cast, :id_change, :id_changed?, :id_was, :id_will_change!, :in?, :include_root_in_json, :include_root_in_json=, :include_root_in_json?, :increment, :increment!, :init_with, :initialize_internals_ callback, :initialize_state_machines, :inspect, :instance_eval, :instance_exec, :instance_of?, :instance_values, :instance_variable_defined?, :instance_variable_get, :instance_variable_names, :ins tance_variable_set, :instance_variables, :invalid?, :is_a?, :is_haml?, :itself, :kind_of?, :load_dependency, :lock!, :lock_optimistically, :lock_optimistically?, :locking_enabled?, :logger, :mark_ for_destruction, :marked_for_destruction?, :method, :method_missing, :methods, :model_name, :name, :name=, :name?, :name_before_type_cast, :name_change, :name_changed?, :name_was, :name_will_chang e!, :nested_attributes_options, :nested_attributes_options?, :new_record?, :nil?, :no_touching?, :object_id, :organization, :organization=, :organization?, :organization_before_type_cast, :organiz ation_change, :organization_changed?, :organization_was, :organization_will_change!, :partial_writes, :partial_writes?, :perform_validations, :persisted?, :pluralize_table_names, :pluralize_table_ names?, :populate_with_current_scope_attributes, :presence, :presence_in, :present?, :pretty_inspect, :pretty_print, :pretty_print_cycle, :pretty_print_inspect, :pretty_print_instance_variables, : previous_changes, :primary_key_prefix_type, :private_methods, :protected_methods, :public_method, :public_methods, :public_send, :publish, :publish!, :publish_transition, :published?, :query_attri bute, :quietly, :quietly_with_deprecation_silenced, :quietly_without_deprecation_silenced, :quoted_id, :raise_in_transactional_callbacks, :raise_record_invalid, :read_attribute, :read_attribute_be fore_type_cast, :read_attribute_for_serialization, :read_attribute_for_validation, :read_store_attribute, :readonly!, :readonly?, :record_timestamps, :record_timestamps=, :record_timestamps?, :rel oad, :remember_transaction_record_state, :remove_instance_variable, :require_dependency, :require_or_load, :reset_created_at!, :reset_description!, :reset_handle!, :reset_id!, :reset_name!, :reset _organization!, :reset_status!, :reset_updated_at!, :respond_to?, :respond_to_without_attributes?, :restore_attributes, :restore_created_at!, :restore_description!, :restore_handle!, :restore_id!, :restore_name!, :restore_organization!, :restore_status!, :restore_transaction_record_state, :restore_updated_at!, :rollback_active_record_state!, :rolledback!, :run_callbacks, :run_validations!, :sanitize_for_mass_assignment, :sanitize_forbidden_attributes, :save, :save!, :schema_format, :send, :serializable_hash, :set_transaction_state, :should, :should_not, :silence, :silence_stderr, :s ilence_stream, :silence_warnings, :singleton_class, :singleton_class?, :singleton_methods, :skill_ids, :skill_ids=, :skills, :skills=, :skip_time_zone_conversion_for_attributes, :skip_time_zone_co nversion_for_attributes?, :slice, :status, :status=, :status?, :status_before_type_cast, :status_change, :status_changed?, :status_event, :status_event=, :status_event_transition, :status_event_tr ansition=, :status_events, :status_name, :status_paths, :status_transitions, :status_was, :status_will_change!, :store_full_sti_class, :store_full_sti_class?, :suppress, :suppress_warnings, :syck_ to_yaml, :table_name_prefix, :table_name_prefix?, :table_name_suffix, :table_name_suffix?, :taguri, :taguri=, :taint, :tainted?, :tap, :time_zone_aware_attributes, :timestamped_migrations, :to_enu m, :to_gid, :to_global_id, :to_json, :to_json_with_active_support_encoder, :to_json_without_active_support_encoder, :to_key, :to_model, :to_param, :to_partial_path, :to_query, :to_s, :to_sgid, :to _signed_global_id, :to_xml, :to_yaml, :to_yaml_properties, :to_yaml_style, :toggle, :toggle!, :touch, :transaction, :transaction_include_any_action?, :transaction_record_state, :trust, :try, :try! , :type_for_attribute, :unloadable, :untaint, :untrust, :untrusted?, :update, :update!, :update_attribute, :update_attributes, :update_attributes!, :update_column, :update_columns, :updated_at, :u pdated_at=, :updated_at?, :updated_at_before_type_cast, :updated_at_change, :updated_at_changed?, :updated_at_was, :updated_at_will_change!, :user_ids, :user_ids=, :users, :users=, :valid?, :valid ate, :validate!, :validate_associated_records_for_categories, :validate_associated_records_for_enrollments, :validate_associated_records_for_skills, :validate_associated_records_for_users, :valida tes_absence_of, :validates_acceptance_of, :validates_confirmation_of, :validates_exclusion_of, :validates_format_of, :validates_inclusion_of, :validates_length_of, :validates_numericality_of, :val idates_presence_of, :validates_size_of, :validates_with, :validation_context, :validation_context=, :with_lock, :with_options, :with_transaction_returning_status, :with_warnings, :write_store_attr ibute]

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@jmmastey macguffin.methods.grep /…?/

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@jmmastey The model in my head is what I use to search.

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HTTP Verb: DELETE SQL Statement: DELETE FROM * Arrays: delete, delete_at, delete_if Every OS Ever: DELETE

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@jmmastey macguffin.methods.grep /delete/ => [:delete]

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@jmmastey macguffin.destroy

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@jmmastey It’s completely unnecessary friction

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@jmmastey Gulf of Evaluation

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@jmmastey Did it work?

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@jmmastey This is easy(ish) in code

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@jmmastey macguffin.delete => #

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@jmmastey macguffin.destroy => #

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@jmmastey class MacGuffin private def self.retrieve … end end

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@jmmastey Natural Mappings

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@jmmastey

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@jmmastey

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@jmmastey What does that look like in code?

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@jmmastey my_stuff.sort

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@jmmastey my_stuff.first

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@jmmastey my_stuff.delete :foo

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@jmmastey brew update brew upgrade

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@jmmastey path realpath absolute_path dir_path realdirpath

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@jmmastey Design for Errors

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@jmmastey Software is screwed up most of the time

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@jmmastey undefined is not a function

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@jmmastey “also, screw you”

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@jmmastey Spooky Nulls at a Distance

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@jmmastey Exploit the Power of Constraint

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@jmmastey Make it hard to do it the wrong way

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@jmmastey mysql --i-am-a-dummy

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@jmmastey irb(main):042:0>

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@jmmastey irb(main):042:0> User.last.destroy =>

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Whitney Hess

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@jmmastey “So You Wanna Be a User Experience Designer”

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@jmmastey 4. Group Related Objects

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@jmmastey Proximity implies relationship

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@jmmastey

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@jmmastey

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@jmmastey what about methods in a class?

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@jmmastey what about similarly named classes / methods?

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@jmmastey macguffin.accounts_add macguffin.accounts_delete macguffin.accounts_list

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@jmmastey 18. Be Consistent

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@jmmastey I’m not saying your code isn’t a beautiful and unique snowflake

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@jmmastey rails dbconsole production rails console production rails server -e production

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@jmmastey def update @macguffin = MacGuffin.find(params[:id]) … end def show_macguffin m = MacGuffin.find(params[:macguffin_id]) … end

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@jmmastey “gulp”.upcase => “GULP”

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@jmmastey “gulp”.upcase => “GULP” “GULP”.upcase => “GULP”

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@jmmastey “gulp”.upcase => “GULP” “GULP”.upcase => “GULP” “gulp”.upcase! => “GULP”

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@jmmastey “gulp”.upcase => “GULP” “GULP”.upcase => “GULP” “gulp”.upcase! => “GULP” “GULP”.upcase! =>

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@jmmastey “gulp”.upcase => “GULP” “GULP”.upcase => “GULP” “gulp”.upcase! => “GULP” “GULP”.upcase! => nil?!

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@jmmastey params[:product_code].upcase!

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@jmmastey params = { product_code: “foO” } # do work expect(macguffin.upc).to eq(“FOO”)

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@jmmastey Consistent with what?

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@jmmastey 16. Use Emotion

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@jmmastey We have an emotional relationship with the software we use

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@jmmastey A demonstration

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@jmmastey Rails

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@jmmastey Elm

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@jmmastey SOAP

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@jmmastey See?

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@jmmastey

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@jmmastey This isn’t about kitsch

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@jmmastey Warmth and kindness make software a pleasure to use

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@jmmastey 9. Avoid Jargon

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@jmmastey stop_csrfs versus protect_from_forgery

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@jmmastey AJAX

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@jmmastey def __private_method

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@jmmastey 7. Provide Signposts and Cues

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@jmmastey Where you came from, where you’re going

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@jmmastey [:!, :!=, :!~, :<=>, :==, :===, :=~, :Pathname, :[], : []=, :__class__, :__extend__, :__id__, :__instance_variable_defined_p__, :__instance_variable_get__, :__instance_variable_set__, :__instance_variables__, :__marshal__, :__respond_to_p__, :__send__ , :__show__, :_commit_callbacks, :_commit_callbacks=, :_commit_callbacks?, :_create_callbacks, :_create_callbacks=, :_create_callbacks?, :_destroy, :_destroy_callbacks, :_destroy_callbacks=, :_des troy_callbacks?, :_find_callbacks, :_find_callbacks=, :_find_callbacks?, :_initialize_callbacks, :_initialize_callbacks=, :_initialize_callbacks?, :_read_attribute, :_reflections, :_reflections=, :_reflections?, :_rollback_callbacks, :_rollback_callbacks=, :_rollback_callbacks?, :_run_commit_callbacks, :_run_create_callbacks, :_run_destroy_callbacks, :_run_find_callbacks, :_run_initialize_ callbacks, :_run_rollback_callbacks, :_run_save_callbacks, :_run_touch_callbacks, :_run_update_callbacks, :_run_validate_callbacks, :_run_validation_callbacks, :_save_callbacks, :_save_callbacks=, :_save_callbacks?, :_touch_callbacks, :_touch_callbacks=, :_touch_callbacks?, :_update_callbacks, :_update_callbacks=, :_update_callbacks?, :_validate_callbacks, :_validate_callbacks=, :_validate_ callbacks?, :_validation_callbacks, :_validation_callbacks=, :_validation_callbacks?, :_validators, :_validators=, :_validators?, :`, :acts_like?, :actually_destroyed?, :add_to_transaction, :after _add_for_categories, :after_add_for_categories=, :after_add_for_categories?, :after_add_for_enrollments, :after_add_for_enrollments=, :after_add_for_enrollments?, :after_add_for_skills, :after_add _for_skills=, :after_add_for_skills?, :after_add_for_users, :after_add_for_users=, :after_add_for_users?, :after_remove_for_categories, :after_remove_for_categories=, :after_remove_for_categories? , :after_remove_for_enrollments, :after_remove_for_enrollments=, :after_remove_for_enrollments?, :after_remove_for_skills, :after_remove_for_skills=, :after_remove_for_skills?, :after_remove_for_u sers, :after_remove_for_users=, :after_remove_for_users?, :aggregate_reflections, :aggregate_reflections=, :aggregate_reflections?, :approve, :approve!, :approve_transition, :approved?, :arel_attr ibutes_with_values_for_create, :arel_attributes_with_values_for_update, :as_json, :assign_attributes, :association, :association_cache, :attribute_aliases, :attribute_aliases?, :attribute_changed? , :attribute_changed_in_place?, :attribute_for_inspect, :attribute_method?, :attribute_method_matchers, :attribute_method_matchers?, :attribute_missing, :attribute_names, :attribute_present?, :att ribute_was, :attributes, :attributes=, :attributes_before_type_cast, :attributes_changed_by_setter, :autosave_associated_records_for_categories, :autosave_associated_records_for_enrollments, :auto save_associated_records_for_skills, :autosave_associated_records_for_users, :becomes, :becomes!, :before_add_for_categories, :before_add_for_categories=, :before_add_for_categories?, :before_add_f or_enrollments, :before_add_for_enrollments=, :before_add_for_enrollments?, :before_add_for_skills, :before_add_for_skills=, :before_add_for_skills?, :before_add_for_users, :before_add_for_users=, :before_add_for_users?, :before_remove_for_categories, :before_remove_for_categories=, :before_remove_for_categories?, :before_remove_for_enrollments, :before_remove_for_enrollments=, :before_remo ve_for_enrollments?, :before_remove_for_skills, :before_remove_for_skills=, :before_remove_for_skills?, :before_remove_for_users, :before_remove_for_users=, :before_remove_for_users?, :blank?, :ca che_key, :cache_timestamp_format, :cache_timestamp_format?, :can_approve?, :can_deprecate?, :can_hide?, :can_publish?, :capture, :categories, :categories=, :category_ids, :category_ids=, :changed, :changed?, :changed_attributes, :changed_for_autosave?, :changes, :changes_applied, :class, :class_eval, :clear_aggregation_cache, :clear_association_cache, :clear_changes_information, :clear_dest roy_state, :clear_transaction_record_state, :clone, :clone_attribute_value, :column_for_attribute, :committed!, :concern, :connection_handler, :created?, :created_at, :created_at=, :created_at?, : created_at_before_type_cast, :created_at_change, :created_at_changed?, :created_at_was, :created_at_will_change!, :decrement, :decrement!, :deep_dup, :default_connection_handler, :default_connecti on_handler?, :default_scopes, :default_timezone, :define_singleton_method, :defined_enums, :defined_enums=, :defined_enums?, :delete, :deprecate, :deprecate!, :deprecate_transition, :deprecated?, :description, :description=, :description?, :description_before_type_cast, :description_change, :description_changed?, :description_was, :description_will_change!, :destroy, :destroy!, :destroyed? , :destroyed_by_association, :destroyed_by_association=, :display, :dump_schema_after_migration, :dup, :duplicable?, :enable_warnings, :encode_with, :enrollment_ids, :enrollment_ids=, :enrollments , :enrollments=, :enum_for, :eql?, :equal?, :error_on, :errors, :errors_on, :extend, :find_by_statement_cache, :find_by_statement_cache=, :find_by_statement_cache?, :fire_events, :fire_events!, :f ire_status_event, :force_clear_transaction_record_state, :freeze, :from_json, :from_xml, :frozen?, :gem, :handle, :handle=, :handle?, :handle_before_type_cast, :handle_change, :handle_changed?, :h andle_was, :handle_will_change!, :has_attribute?, :has_transactional_callbacks?, :hash, :hidden?, :hide, :hide!, :hide_transition, :html_safe?, :human_status_name, :id, :id=, :id?, :id_before_type _cast, :id_change, :id_changed?, :id_was, :id_will_change!, :in?, :include_root_in_json, :include_root_in_json=, :include_root_in_json?, :increment, :increment!, :init_with, :initialize_internals_ callback, :initialize_state_machines, :inspect, :instance_eval, :instance_exec, :instance_of?, :instance_values, :instance_variable_defined?, :instance_variable_get, :instance_variable_names, :ins tance_variable_set, :instance_variables, :invalid?, :is_a?, :is_haml?, :itself, :kind_of?, :load_dependency, :lock!, :lock_optimistically, :lock_optimistically?, :locking_enabled?, :logger, :mark_ for_destruction, :marked_for_destruction?, :method, :method_missing, :methods, :model_name, :name, :name=, :name?, :name_before_type_cast, :name_change, :name_changed?, :name_was, :name_will_chang e!, :nested_attributes_options, :nested_attributes_options?, :new_record?, :nil?, :no_touching?, :object_id, :organization, :organization=, :organization?, :organization_before_type_cast, :organiz ation_change, :organization_changed?, :organization_was, :organization_will_change!, :partial_writes, :partial_writes?, :perform_validations, :persisted?, :pluralize_table_names, :pluralize_table_ names?, :populate_with_current_scope_attributes, :presence, :presence_in, :present?, :pretty_inspect, :pretty_print, :pretty_print_cycle, :pretty_print_inspect, :pretty_print_instance_variables, : previous_changes, :primary_key_prefix_type, :private_methods, :protected_methods, :public_method, :public_methods, :public_send, :publish, :publish!, :publish_transition, :published?, :query_attri bute, :quietly, :quietly_with_deprecation_silenced, :quietly_without_deprecation_silenced, :quoted_id, :raise_in_transactional_callbacks, :raise_record_invalid, :read_attribute, :read_attribute_be fore_type_cast, :read_attribute_for_serialization, :read_attribute_for_validation, :read_store_attribute, :readonly!, :readonly?, :record_timestamps, :record_timestamps=, :record_timestamps?, :rel oad, :remember_transaction_record_state, :remove_instance_variable, :require_dependency, :require_or_load, :reset_created_at!, :reset_description!, :reset_handle!, :reset_id!, :reset_name!, :reset _organization!, :reset_status!, :reset_updated_at!, :respond_to?, :respond_to_without_attributes?, :restore_attributes, :restore_created_at!, :restore_description!, :restore_handle!, :restore_id!, :restore_name!, :restore_organization!, :restore_status!, :restore_transaction_record_state, :restore_updated_at!, :rollback_active_record_state!, :rolledback!, :run_callbacks, :run_validations!, :sanitize_for_mass_assignment, :sanitize_forbidden_attributes, :save, :save!, :schema_format, :send, :serializable_hash, :set_transaction_state, :should, :should_not, :silence, :silence_stderr, :s ilence_stream, :silence_warnings, :singleton_class, :singleton_class?, :singleton_methods, :skill_ids, :skill_ids=, :skills, :skills=, :skip_time_zone_conversion_for_attributes, :skip_time_zone_co nversion_for_attributes?, :slice, :status, :status=, :status?, :status_before_type_cast, :status_change, :status_changed?, :status_event, :status_event=, :status_event_transition, :status_event_tr ansition=, :status_events, :status_name, :status_paths, :status_transitions, :status_was, :status_will_change!, :store_full_sti_class, :store_full_sti_class?, :suppress, :suppress_warnings, :syck_ to_yaml, :table_name_prefix, :table_name_prefix?, :table_name_suffix, :table_name_suffix?, :taguri, :taguri=, :taint, :tainted?, :tap, :time_zone_aware_attributes, :timestamped_migrations, :to_enu m, :to_gid, :to_global_id, :to_json, :to_json_with_active_support_encoder, :to_json_without_active_support_encoder, :to_key, :to_model, :to_param, :to_partial_path, :to_query, :to_s, :to_sgid, :to _signed_global_id, :to_xml, :to_yaml, :to_yaml_properties, :to_yaml_style, :toggle, :toggle!, :touch, :transaction, :transaction_include_any_action?, :transaction_record_state, :trust, :try, :try! , :type_for_attribute, :unloadable, :untaint, :untrust, :untrusted?, :update, :update!, :update_attribute, :update_attributes, :update_attributes!, :update_column, :update_columns, :updated_at, :u pdated_at=, :updated_at?, :updated_at_before_type_cast, :updated_at_change, :updated_at_changed?, :updated_at_was, :updated_at_will_change!, :user_ids, :user_ids=, :users, :users=, :valid?, :valid ate, :validate!, :validate_associated_records_for_categories, :validate_associated_records_for_enrollments, :validate_associated_records_for_skills, :validate_associated_records_for_users, :valida tes_absence_of, :validates_acceptance_of, :validates_confirmation_of, :validates_exclusion_of, :validates_format_of, :validates_inclusion_of, :validates_length_of, :validates_numericality_of, :val idates_presence_of, :validates_size_of, :validates_with, :validation_context, :validation_context=, :with_lock, :with_options, :with_transaction_returning_status, :with_warnings, :write_store_attr ibute]

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@jmmastey RTFM? STFU.

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@jmmastey User.find_by_email_and_first_name

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@jmmastey User.find_by(email: ‘’, first_name: ‘’)

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No content

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@jmmastey 㽩 /export/nonce (master) > rspec bomb_spec.rb Failures: 1) MyObject works at all Failure/Error: expect(1).to eq(0) expected: 0 got: 1 … stacktrace … Finished in 0.00375 seconds (files took 0.29196 seconds to load) 1 example, 1 failure Failed examples: rspec ./bomb_spec.rb:4 # MyObject works at all

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@jmmastey 㽩 /export/nonce (master) > rspec bomb_spec.rb Failures: 1) MyObject works at all Failure/Error: expect(1).to eq(0) expected: 0 got: 1 … stacktrace … Finished in 0.00375 seconds (files took 0.29196 seconds to load) 1 example, 1 failure Failed examples: rspec ./bomb_spec.rb:4 # MyObject works at all

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@jmmastey 㽩 /export/nonce (master) > rspec bomb_spec.rb Failures: 1) MyObject works at all Failure/Error: expect(1).to eq(0) expected: 0 got: 1 … stacktrace … Finished in 0.00375 seconds (files took 0.29196 seconds to load) 1 example, 1 failure Failed examples: rspec ./bomb_spec.rb:4 # MyObject works at all

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@jmmastey rspec ./bomb_spec.rb:4 # MyObject works at all

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@jmmastey @macguffin = MacGuffin.find(1)

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@jmmastey So what’s the point?

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@jmmastey “The world is filled with plenty of anguish — make your life goal not to add to it.”

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@jmmastey This is the mechanism for self documenting code

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@jmmastey The part where I ask you for things

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@jmmastey “So you wanna be a user experience designer” - Whitney Hess (http://bit.ly/1Hn1nQS) “The Design of Everyday Things” - Don Norman (I dunno, Amazon?)

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@jmmastey Thanks! Frustration Photo by jseliger2 (https://www.flickr.com/photos/91262622@N02/) Happy Kids by deepblue66 (https://www.flickr.com/photos/deepblue66/14503838952) Annotated code by Avdi Grimm (https://avdi.org) All icons from the NounProject (https://nounproject.com)