Hi,
Probably this is a newbie question, but I spent a whole day searching
for a solution without success.
I want to create an one-to-one relationships between two entities
(City and Costumer). I have a form where I create new costumers. When
I save this new costumer into the datastore a new "register" for city
is created causing one unnecessary duplication.
I am using unowned relationship and my model is above:
@PersistenceCapable(identityType = IdentityType.APPLICATION)
Class City{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName="datanucleus", key="gae.encoded-pk", value="true")
private String key;
@Persistent
private String nome;
...
}
@PersistenceCapable(identityType = IdentityType.APPLICATION)
Class Costumer{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName="datanucleus", key="gae.encoded-pk", value="true")
private String key;
@Persistent
private String cityKey;
...
}
And I am saving the Costumer class in this function:
public void create(Costumer costumer) {
PersistenceManager pm = Conn.get();
try {
pm.makePersistent(costumer);
} finally {
pm.close();
}
return errors;
}
So, what I am doing wrong? It seems that in owned relationships this
behavior (duplicate child object) is expected, but I can not
understand why it is happening here.
I would be grateful if anyone could help?
Thanks in advance.
Rodrigo Sol
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