June 2002
Intermediate to advanced
400 pages
7h 48m
English
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Fixing Bugs
In this section we'll look at how to debug and bug fix an application. Often during the user testing, or predeployment stage, you will find bugs that have been brought to your attention. If you're lucky this will be before you launch your site or application.
So, we'll look at some techniques to isolate and fix these problems.
Tightening Validation Rules
Remember that when we developed the object model for the online forum, we relaxed the validation policy to allow null for most attributes.
In particular, there are some attributes that we really shouldn't allow null. A topic without a name is meaningless. Similarly, a post ought to have a message.
So, open the model files from the framework project and uncheck the allows null setting ...
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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.