I have a Specialist ('OrderingEntities') which creates virtual
objects, mapped to existing objects (using ZClass 'Employee') in
another Specialist ('Employees'). I want OrderingEntities to add and
modify a property 'current_order_id' on the Employee objects. I can
get the virtual object to access properties from the real object, but
I can't figure out how to implement the property add/change.
To make things simpler, I added the property current_order_id to the
Employee class, so I can test just modifying this property, leaving
creating it for later.
OrderingEntities has an employeeRack, set to use the Employee class
and to load by accessing attribute current_order_id. The Rack has
WITH Employees.getItem(self.id) COMPUTE
original_object=RESULT or NOT_FOUND
WITH self.original_object COMPUTE
WHEN OBJECT ADDED,CHANGED STORE current_order_id USING
"OrderingEntities.getItem(some_id).current_order_id)"> shows me the
value of current_order_id of the Employee object some_id. But I can't
figure out how to change the property so it get changed in the
Employee object. <dtml-call
does nothing, it doesn't even trigger the WHEN OBJECT CHANGED line
(not that I really expected it to work... this object is virtual, how
can I call changeProperties on it?)
Other than figuring out how to get the change to work, I two more problems:
-Eventually the OrderingEntities Specialist will have several Racks
mapping to several other Specialists, so it will end up returning
different classes. Should I instead create a new ZClass with just the
current_order_id property and use this class in all the virtual Racks?
- How do I add a property to the original object from the virtual
object (assuming I did not add it manually to the Employee class)? Do
I call self.original_object.manage_addProperty(...) from the
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