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Add support for customizing the graph’s orientation
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Use the standard visualizations for initial (open arrow) and final (double circle) states
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Highlight final states in GraphViz drawings
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Make it easier to override generated instance / class methods
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Add i18n support for ActiveRecord validation errors
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Add a validation error when failing to transition for ActiveRecord / DataMapper / Sequel integrations
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Allow multiple conditions for callbacks / class behaviors
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Add support for state-driven class behavior with :if/:unless options
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Alias Machine#event as Machine#on
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Fix nil from/to states not being handled properly
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Simplify hooking callbacks into loopbacks
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Add simplified transition/callback requirement syntax
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Improve pretty-print of events
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Simplify state/event matching design, improving guard performance by 30%
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Add better error notification when conflicting guard options are defined
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Fix scope name pluralization not being applied correctly
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Allow states to be drawn as ellipses to accommodate long names
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Fix rake tasks not being registered in Rails/Merb applications
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Never automatically define machine attribute accessors when using an integration
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Add to_name and from_name to transition objects
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Add nicely formatted #inspect for transitions
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Fix ActiveRecord integrations failing when the database doesn’t exist yet
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Fix states not being drawn in GraphViz graphs in the correct order
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Add nicely formatted #inspect for states and events
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Simplify machine context-switching
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Store events/states in enumerable node collections
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No longer allow subclasses to change the integration
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Move fire! action logic into the Event class (no longer calls fire action on the object)
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Allow states in subclasses to have different values
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Recommend that all states be referenced as symbols instead of strings
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All states must now be named (and can be associated with other value types)
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Add support for customizing the actual stored value for a state
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Add compatibility with Ruby 1.9+
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Allow dm-observer integration to be optional
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Fix non-lambda callbacks not working for DataMapper/Sequel
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Fix graphs not being drawn the same way consistently
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Add support for sharing transitions across multiple events
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Add support for state-driven behavior
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Simplify initialize hooks, requiring super to be called instead
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Add :namespace option for generated state predicates / event methods
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Fix nil states not being handled properly in guards, known states, or visualizations
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Fix the same node being used for different dynamic states in GraphViz output
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Always include initial state in the list of known states even if it’s dynamic
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Use consistent naming scheme for dynamic states in GraphViz output
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Allow blocks to be directly passed into machine class
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Fix attribute predicates not working on attributes that represent columns in ActiveRecord
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Remove the PluginAWeek namespace
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Add generic attribute predicate (e.g. “#{attribute}?(state_name)”) and state predicates (e.g. “#{state}?”)
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Add Sequel support
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Fix aliasing :initialize on ActiveRecord models causing warnings when the environment is reloaded
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Fix ActiveRecord state machines trying to query the database on unmigrated models
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Fix initial states not getting set when the current value is an empty string [Aaron Gibralter]
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Add rake tasks for generating graphviz files for state machines [Nate Murray]
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Fix initial state not being included in list of known states
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Add other_states directive for defining additional states not referenced in transitions or callbacks [Pete Forde]
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Add next_#{event}_transition for getting the next transition that would be performed if the event were invoked
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Add the ability to override the pluralized name of an attribute for creating scopes
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Add the ability to halt callback chains by: throw :halt
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Add support for dynamic to states in transitions (e.g. :to => lambda {Time.now})
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Add support for using real blocks in before_transition/after_transition calls instead of using the :do option
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Add DataMapper support
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Include states referenced in transition callbacks in the list of a machine’s known states
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Only generate the known states for a machine on demand, rather than calculating beforehand
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Add the ability to skip state change actions during a transition (e.g. vehicle.ignite(false))
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Add the ability for the state change action (e.g.
savefor ActiveRecord) to be configurable -
Allow state machines to be defined on any Ruby class, not just ActiveRecord (removes all external dependencies)
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Refactor transitions, guards, and callbacks for better organization/design
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Use a class containing the transition context in callbacks, rather than an ordered list of each individual attribute
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Add without_#{attribute} named scopes (opposite of the existing with_#{attribute} named scopes) [Sean O’Brien]
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Fix the initial state not getting set when the state attribute is mass-assigned but protected
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Change how the base module is included to prevent namespacing conflicts
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No longer allow additional arguments to be passed into event actions
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Add support for can_#{event}? for checking whether an event can be fired based on the current state of the record
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Don’t use callbacks for performing transitions
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Fix state machines in subclasses not knowing what states/events/transitions were defined by superclasses
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Replace all before/after_exit/enter/loopback callback hooks and :before/:after options for events with before_transition/after_transition callbacks, e.g.
before_transition :from => ‘parked’, :do => :lock_doors # was before_exit :parked, :lock_doors after_transition :on => ‘ignite’, :do => :turn_on_radio # was event :ignite, :after => :turn_on_radio do
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Always save when an event is fired even if it results in a loopback [Jürgen Strobel]
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Ensure initial state callbacks are invoked in the proper order when an event is fired on a new record
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Add before_loopback and after_loopback hooks [Jürgen Strobel]
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Add more descriptive exceptions
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Assume the default state attribute is “state” if one is not provided
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Add :except_from option for transitions if you want to blacklist states
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Add PluginAWeek::StateMachine::Machine#states
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Add PluginAWeek::StateMachine::Event#transitions
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Allow creating transitions with no from state (effectively allowing the transition for any from state)
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Reduce the number of objects created for each transition
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Add a non-bang version of events (e.g. park) that will return a boolean value for success
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Raise an exception if the bang version of events are used (e.g. park!) and no transition is successful
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Change callbacks to act a little more like ActiveRecord
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Avoid using string evaluation for dynamic methods
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Remove log files from gems
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Completely rewritten from scratch
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Renamed to state_machine
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Removed database dependencies
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Removed models in favor of an attribute-agnostic design
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Use ActiveSupport::Callbacks instead of eval_call
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Remove dry_transaction_rollbacks dependencies
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Added functional tests
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Updated documentation
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Add dependency on custom_callbacks
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Move test fixtures out of the test application root directory
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Improve documentation
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Remove the StateExtension module in favor of adding singleton methods to the stateful class
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Convert dos newlines to unix newlines
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Fix error message when a given event can’t be found in the database
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Add before_#{action} and #{action} callbacks when an event is performed
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All state and event callbacks can now explicitly return false in order to cancel the action
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Refactor ActiveState callback creation
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Refactor unit tests so that they use mock classes instead of themselves
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Allow force_reload option to be set in the state association
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Don’t save the entire model when updating the state_id
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Raise exception if a class tries to define a state more than once
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Add tests for PluginAWeek::Has::States::ActiveState
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Refactor active state/active event creation
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Fix owner_type not being set correctly in active states/events of subclasses
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Allow subclasses to override the initial state
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Fix problem with migrations using default null when column cannot be null
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Moved deadline support into a separate plugin (has_state_deadlines).
-
Added many more unit tests.
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Simplified many of the interfaces for maintainability.
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Added support for turning off recording state changes.
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Removed the short_description and long_description columns, in favor of an optional human_name column.
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Fixed not overriding the correct equality methods in the StateTransition class.
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Added to_sym to State and Event.
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State#name and Event#name now return the string version of the name instead of the symbol version.
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Added State#human_name and Event#human_name to automatically figure out what the human name is if it isn’t specified in the table.
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Updated manual rollbacks to use the new Rails edge api (ActiveRecord::Rollback exception).
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Moved StateExtension class into a separate file in order to help keep the has_state files clean.
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Renamed InvalidState and InvalidEvent exceptions to StateNotFound and EventNotFound in order to follow the ActiveRecord convention (i.e. RecordNotFound).
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Added StateNotActive and EventNotActive exceptions to help differentiate between states which don’t exist and states which weren’t defined in the class.
-
Added support for defining callbacks like so:
def before_exit_parked end
def after_enter_idling end
-
Added support for defining callbacks using class methods:
before_exit_parked :fasten_seatbelt
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Added event callbacks after the transition has occurred (e.g. after_park)
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State callbacks no longer receive any of the arguments that were provided in the event action
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Updated license to include our names.