June 2002
Intermediate to advanced
400 pages
7h 48m
English
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Finessing the Model
It is imperative that even at this stage, the model is slick enough so that it allows us to do what we want.
It is useless being half way through a project and discovering that we have to adjust the model to perform a task such as object deletion.
Setting the Delete Rules
In the last testing exercise, we discovered that we are not allowed to delete a Forum, otherwise it would leave Topics orphaned. But in an Online Forum, a moderator would want to have the ability to delete Forums.
The way to do this is by setting a Delete Rule on the Forum.topics relationship. Select the relationship in EOModeler and open the Advanced Entity Inspector.
Then select Cascade as the Delete Rule, as in Figure 8.10.
Figure 8.10. Setting the Delete ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.