hello, i'd like to know whether it is best to use classes or relational databases for a (medium ?) sized project involving about 1000 new documents a month (average interconnection between them) and about 2 years of backlogs (each doc being about 1500 signs). i would love to do it entirely in zope (classes + methods + dtml) but i'm not sure wheter this is a good idea or if i can make everything i'm used to like in a relational database. to make it more clear, i'll make an example. let's say i am dealing with news-like sutff i have the following tree : news news/sport news/sport/20010406_0236 news/sport/20010406_0345 news/sport/XXXXXXXXXXXXX (being yyyymmdd_hhmm) news/art news/art/20010406_0236 news/art/20010406_0345 news/art/XXXXXXXXXXXXX (being yyyymmdd_hhmm too) i'm using classe for these yyyymmdd_hhmm objects and i'd like to sort them according to date or author both in separate folders (newest items in sports) or to pick them from both (5 most recent items from both folders for example). how do i do that in dtml ? (i'd prefer doing it in dtml than in python because people who will be in charge afterwards will have less trouble managing it). <dtml-in xxx sort="date"> would do the trick inside a folder, but how do i do it in both folders ???? furthermore, is it a good idea to keep this in the zodb or is it best to put it in another outside database (mysql most probably) ? thx, $ven