On Thu, 21 Oct 1999, Tom Deprez wrote:
Hi everybody,
I'm wondering if somebody already created this and wants to learn it to everybody. It's about a very basic thing, but which lot's of people could learn from.
I want to creat a Address-book in Zope. A person can add, edit or delete his address. He can view all adresses and sort them by first/last name, zip-code. How will we have to start implementing this?
What's the best way? Put all the addresses into Zope or into a database? Do we need Python? Or can everything be done with ZClasses? Well, it can be done: 1.) in python. 2.) in ZClasses/ZCatalog. 3.) with the help of a SQL server and with SQLmethods.
Well, depending upon a number of criteria, you'll need to decide how to proceed: -) readability. This is a personal thing, but I'd consider the python or SQL solution more readable than having the logic in DTML. -) number of addresses. It might be reasonable to keep 1000 (or 10000) adresses in ZClasses, 100000 are propably not reasonable anymore. -) usage pattern. With ZClasses/ZCatalog you can create objects that can be put at any place in the hierarchy of your site. With SQL you get rather one big list ;) (Not necessarily, you can also put additional logic into your SQL solution.) -) distribution. Sorting on ease of distribution, I get python, followed by ZClasses, and as a last ZSQL. (Why? SQL implies that the deployer will need the same or a compatible SQL server.) Andreas -- Andreas Kostyrka | andreas@mtg.co.at phone: +43/1/7070750 | phone: +43/676/4091256 MTG Handelsges.m.b.H. | fax: +43/1/7065299 Raiffeisenstr. 16/9 | 2320 Zwoelfaxing AUSTRIA