June 2002
Intermediate to advanced
400 pages
7h 48m
English
Content preview from WebObjects® Developer's Guide
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Using Multiple Models
When you are thoroughly satisfied that both the User model and the Forum model are functionally robust and stable, then you may proceed to linking them together.
Start by creating a new DirectToWeb application UserForumTest, with both the User model and the Forum model you've defined before. Make sure that the models are copied into the application for simplicity. Also copy in the custom-class files for the entitiess that you have defined.
Defining a Cross Model Relationship
Open the Forum model in EOModeler.
1. | Copy the User primary key from the User model and paste it into the Post entity. Make sure that it is abstract and doesn't allow null. |
2. | Define a new to-one relationship to User as normal, except in the Relationship ... |
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