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Size: 1.59 KB
Versions: 4
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Stored size: 1.59 KB
Contents
require 'active_record'
require 'active_record/edge-state-machine'
ActiveRecord::Base.establish_connection(:adapter => "sqlite3", :database => ":memory:")
class TrafficLight < ActiveRecord::Base
include ActiveRecord::EdgeStateMachine
state_machine do
create_scopes true
persisted_to :state
state :off
state :red
state :green
state :yellow
event :red_on do
transition :to => :red, :from => [:yellow]
end
event :green_on do
transition :to => :green, :from => [:red]
end
event :yellow_on do
transition :to => :yellow, :from => [:green]
end
event :reset do
transition :to => :red, :from => [:off]
end
end
end
class ProtectedTrafficLight < TrafficLight
attr_protected :state
end
class ValidatingTrafficLight < TrafficLight
validate {|t| errors.add(:base, 'This TrafficLight will never validate after creation') unless t.new_record? }
end
class ConditionalValidatingTrafficLight < TrafficLight
validate :name, :presence => true, :length => { :within => 20..40 }, :confirmation => true, :if => :red?
end
class TrafficLightNoScope < ActiveRecord::Base
include ActiveRecord::EdgeStateMachine
state_machine do
persisted_to :state
state :off
state :red
state :green
state :yellow
event :red_on do
transition :to => :red, :from => [:yellow]
end
event :green_on do
transition :to => :green, :from => [:red]
end
event :yellow_on do
transition :to => :yellow, :from => [:green]
end
event :reset do
transition :to => :red, :from => [:off]
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems