Calling event fails with Transitions::InvalidTransition although target state is valid

[jensb]

With AASM, I was using @foo.aasm_events_for_current_state and @foo.aasm_events_for_state(the_state) to verify whether a specific event could be called before actually calling it. This was necessary as a validation because I have an attr_accessible :event which is used in forms (select field) to change state.

With Transitions, I tried using self.class.state_machines[:default].events_for(self.state.to_sym) instead of events_for_current_state, and it works and contains the event I want to call. However, when I subsequently call the event using self.send("#{self.event}"), I get a InvalidTransition exception.

I noticed that Transitions does not normalize state names to "string" or :symbol form, i.e. when I set the state using strings, but compare it using symbols, or vice versa, comparison fails.

Is this a known bug? Or else, how would I solve this task using Transitions?

Thanks!

[qoobaa]

I'm not sure if it's a bug, but you can try to fix this behaviour to match your requirements.

[troessner]

@jensb Any updates on this?

[jensb]

I cannot reproduce. I think it was a before_filter that returned false, that is why I got no validation errors but the transition failed. But I'll dig through my SVN logs and try to find the changeset.

[troessner]

@jensb

I'll close this for now, please re-open it when you're able to reproduce it.