chaining transitions together

[Roger Smith]

Is it possible to chain transitions to create a workflow?

For example

  state_machine :state, :initial => :initialized do

  event :find_item do

  transition :initialized => :finding_item

  end

    after_transition :initialized => :finding_item do |order, trans|

      if product = Item.find(12)

         transition :finding_item => :item_found

      else

         transition :finding_item => :item_not_found

      end

    end

  after_transition :finding_item => :item_not_found do |order, trans| 

      #email item not found

   end

[Bill Burcham]

Close. You could do this:

event :item_found do

   transition :finding_item => :item_found

end

event :item_not_found do

   transition :finding_item => :item_not_found

end

...

if product = Item.find(12)

   order.item_found

else

   order.item_not_found

end

I used event names that match the state names which I feel is generally a bad practice, or at least a side-effect of a bad design. But you get the idea.