<dtml-in "foo" sort=akey> is really handy as everyone knows. I needed to sort on multiple fields for an application I have, so I hacked at lib/python/DocumentTemplate/DT_In.py so the following now appears to work <dtml-in "foo" sort=akey1,akey2,akey3> This is only VERY lightly tested which is why I'm posting it here. If anyone needs this, please try it - but NOT on a production server. Please let me know how you go. If it proves useable, I'd suggest it eventually might be worth considering for a future release since without this patch, if you need multiple keys you have to fake them in your data which is cruel.. I haven't even tried the mapping version code and I suspect that it's unlikely to work, but, in the spirit of opensource, for those of a self destructive urge and strong stomach, here's the diff. This is highly experimental..PLEASE don't even think about using this unless you're willing to clean up any mess that results. All care, no responsibility. Note that the patch will rename the original method to osort_sequence so you can easily revert to normal operation. 390c390 < from string import find, atoi, join ---
from string import find, atoi, join, split 703c703,759 < def sort_sequence(self, sequence):
def sort_sequence(self, sequence): ''' hacks to support multiple sort fields april 7 ross lazarus rossl@med.usyd.edu.au eg <dtml in "foo" sort=akey,anotherkey> all keys are converted to strings since integers and so on can't be appended... Highly experimental and dangerous - use at your own risk Please let me know how it goes - I'll submit a patch to the collector when enough people have tried it. '''
sort=self.sort sortfields = split(sort,',') # multi sort = key1,key2 multsort = len(sortfields) > 1 # is multiple sort mapping=self.mapping isort=not sort s=[] for client in sequence: k = '' if type(client)==TupleType and len(client)==2: if isort: k=client[0] v=client[1] else: if isort: k=client v=client
if sort: if multsort: # more than one sort key ? for sk in sortfields: if mapping: # can't do this? akey = v[sk] # str hack - not needed if string? else: akey =getattr(v, sk) if not basic_type(akey): try: akey=akey() except: pass if type(akey) <> type(''): akey = str(akey) k = k + akey else: # original code if mapping: k=v[sort] else: k=getattr(v, sort) if not basic_type(k): try: k=k() except: pass
s.append((k,client))
s.sort()
sequence=[] for k, client in s: sequence.append(client) return sequence
def osort_sequence(self, sequence):
-- Dr Ross Lazarus Associate Professor and Sub-Dean for Information Technology Faculty of Medicine, Room 126A, A27, University of Sydney, Camperdown, NSW 2006, Australia Tel: (+61 2) 93514429 Mobile: +61414872482 Fax: (+61 2) 93516646 Email: rossl@med.usyd.edu.au