Using strings instead of symbols

[sporto]

If I try to use strings instead of symbols for defining the events Workflow doesn't work properly.

e.g.

state 'new' do
    event 'publish', ...
end

Then

object.can_publish? 

always returns false where it should return true. When using symbols this works fine.

However using string is useful for validation:

validates :state, :presence => true, :inclusion => STATUSES

where STATUSES is the array of possible valid states

When the object is first created the state is a symbol so validation passes. Then when the saved and retrieved back again state is a string so it doesn't validate anymore.

I would be good to have full support for using strings as well as symbols.

[voltechs]

Hmm... might be a neat idea to build validation into the workflow (active record adapter) (since that information is already available in the workflow_spec.