dhis2-devs-core team mailing list archive

[Lars Helge Øverland <larshelge@xxxxxxxxx>]

Hi Tran and all,

great work so far. We are making progress.

I have started using a new tool for ER diagrams and mapped out the changes
to the tracker model here:

https://www.gliffy.com/go/html5/5341999

Next step is to introduce a class TrackedEntity:

TrackedEntity
  extends BaseNameableObject


We need links from Program and TrackedEntityInstance.

class Program
  TrackedEntity trackedEntity;


class TrackedEntityInstance
  TrackedEntity trackedEntityInstance;


The idea is that a Program can have one tracked entity, for instance a
program can be for "ARV drugs". Also, each TrackedEntityInstance must be
linked to one TrackedEntity.

- We need to put in the usual list + add / update user interface for
TrackedEntity in the program maintenance module.

- In the add / update Program UI, we need to add a selection list of
available TrackedEntities. I guess we must allow null to be backwards
compatible.

- When creating new TrackedEntityInstances: If a program is selected, we
can derive the TrackedEntity from the program. If no program is selected,
we must present the selection list of available TrackedEntities.


Tran let me know if there are any questions.

regards,

Lars