[Grok-dev] ZODB and storing, retrieving, deleting, use of ID

[John de la Garza]

I'm making an app that has polls for voting... When I make a Poll  
object to I have to create an ID so I can find it again.  I'm comming  
froma RDBMS background and am wondering if there are any articles  
that would helpl me transistion.  For example should the ID be the  
last object id + 1?  I saw some sample code that kept the objects in  
a list then just got the length of the list, but if items are deleted  
then using the len as the ID could be trouble (not unique).... any  
feed back would be apprecitated.  I've read intro to ZODB (Jim  
Fulton) but it doesn't mention deleting