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firefoxSafari (2) [Avatar] Offline
Hi! I finished reading this book a few days back. It was a very enjoyable, insightful read. I found your explanation of inheritance and plugins using Ext especially eye-opening. Chapter 15 alone is worth the price of admission. I also appreciated the explanation of Observable. You clearly took the time to think about how best to explain the concepts behind the framework rather than simply throwing a bunch of examples together. I know I’ll write better code for having read the book – thanks!

I do have one specific question regarding reusability. How do you deal with the name config option on classes like TextField? For example, say I want to subclass a FieldSet that is to display address information. It has some complex formatting and some complex logic dealing with zip code lookup filling in other fields etc. I’d like two instances of this on the same form, one for mailing address and one for physical address, maybe billing address too.

Given a scenario like this, what’s the best way to deal with the name attribute? Ideally, I would like to set the name on the individual items the FieldSet contains in the definition for the class, but I’m not sure it’s a good idea to depend on fields with the same name being received in a certain order on the server? I was thinking about passing in a config option that would be a unique string to append to all the names before any dom elements actually get rendered. Just curious how someone with your experience would solve this.
jesus.garcia (463) [Avatar] Offline
Re: Reusability and the name config option

I've gone the way of using dot or underscore notation for the field "names".



from here you can see the easy separation. smilie