Louis Demers wrote:
Hi,
-----------
Background:
I have two objects setup tied by a bidirectional one-to-one optional
relationships. both classes have acessors for the relationships in their
classe.
TelehoneLine.java contains
public class TelephoneLine extends EOGenericRecord {
...
public Contact employee() {
return (Contact)storedValueForKey("employee");
}
public void setEmployee(Contact value) {
takeStoredValueForKey(value, "employee");
}
...
}
Contact.java contains
public class Contact extends EOGenericRecord {
...
public TelephoneLine telephoneLine() {
return (TelephoneLine)storedValueForKey("telephoneLine");
}
public void setTelephoneLine(TelephoneLine value) {
takeStoredValueForKey(value, "telephoneLine");
}
...
}
Both one-to-one relationships (employee and telephoneLine) are defined
optional, nullify, DO NOT own destinations. and their foreign keys allow
zeros.
--------
Problem:
When I use "addObjectToBothSidesOfRelationshipWithKey"
aTelephoneLine.addObjectToBothSidesOfRelationshipWithKey(selectedEmployee,"employee");
only half of the relationships get updated. I crafted the following code
that does update both sides
-----------
Workaround:
if (aTelephoneLine.employee() != null ){
aTelephoneLine.employee().setTelephoneLine(null);
}
aTelephoneLine.setEmployee(selectedEmployee);
if (selectedEmployee != null ){
selectedEmployee.setTelephoneLine(aTelephoneLine);
}
but I don't undestand why "addObjectToBothSidesOfRelationshipWithKey"
doesnt' work and suspect I screwed up somewhere.
It sounds like you have two, to-one relationships, if so, each will need
to be set as you have done above or using addobjects..
Or as Robert said previously you can create a to-many and only ever add
one object on the many side, writing the relevant helper methods to
return the single object or add/replace for that matter. Then you only
need one call to addobjects.. This might be a good approach as its
flexible for the day when someone has to share a phone line. :)
cheers,
- shaun
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com
This email sent to [email protected]
