Having not got a reply to this, perhaps I should add something about
what I already tried ... ?
My sense from the Hobo documentation is that the important thing is to
keep model-related stuff in the model, so I assume that the changing
the value of a field during a transition involves an assignment within
a method in the model.rb file.
So ... I did an assignment to what I thought would be the instance
variable of the current patient as so ...
transition :disharge_patient, { :admitted => :discharged },
:available_to => :all do
@patient.location_id = nil
end
but that doesn't work since it thinks location_id is a method ... and
the console tells me @patient is not defined.
I've tried a few other things within the Lifecycle statement - but
most of them crash, indicating that I'm a Ruby-Noobie.
Any help on this gratefully received. I'm a bit stuck on this.
Thanks
DJ
On Apr 4, 12:46 am, DJ <[email protected]> wrote:
> Apologies if this is ridiculously straightforward - my learning-curve
> is near vertical and I've got a bit lost on the Hobo/Rails cliff-face
> (but enjoying it). Thanks in advance to any suggestions.
>
> I have a very simple patient database with a lifecycle which holds
> whether the patient is admitted or discharged - this is working
> wonderfully using TablePlus and <transition-buttons/>.
>
> However, I want to 'blank-out' (set to nil probably) the location
> when a patient is discharged.
>
> My question is how best to do this.
>
> Any help gratefully received. Many thanks
>
> DJ
>
> __________________________
>
> Relevant code in patient.rb is as follows:
>
> class Patient < ActiveRecord::Base
>
> hobo_model # Don't put anything above this
>
> fields do
> first_name :string
> last_name :string
> # etc - field-list cut for clarity ...
> timestamps
> end
>
> belongs_to :location
> # etc - other relationships cut for clarity
>
> lifecycle :state_field => :admission_status do
>
> state :admitted
> state :discharged , :default => true
>
> transition :admit_patient, { :discharged => :admitted } , :params
> => [ :location ] ,
> :available_to => :all do
>
> end
>
> transition :disharge_patient, { :admitted => :discharged },
> :available_to => :all do
>
> end
>
> end
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