Relation and Entity Share a Field / Reference Each Other I can't seem to get this to work. I've searched and search, and maybe I'm not using the correct terminology, but I need to add a custom field to a Relation that reads a value from the Entity its related to. Or another way to put this, I need a field from the Relation to update a field in an Entity when the Relation is updated. Example:

Entity -> Worker
Relation -> Employed At
Entity -> Company

I want to update my custom field "classification" through the Employed At Relation and then see that change reflected in the "classification" custom field in my Worker Entity.
If you are talking about the Relation module, then you can use Rules to trigger entity updates whenever a relationship (which is also an entity) changes.

The workflow would be like this :


Trigger on entity update.
Check that entity is a relation.
Update linked entity.


Check the video documentation on Relation, there are two (1, 2) of them talking about Rules.