-----Original Message----- From: Adam Karpierz [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 18, 2001 02:08 To: Loren Stafford Subject: Re: Variable sort and multiple sort in dtml-in ----- Original Message ----- From: "Loren Stafford" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Thursday, January 18, 2001 4:16 AM Subject: Variable sort and multiple sort in dtml-in > On 02 July 2000, Adam Karpierz, posted a patch that would allow an > expression for the sort specification for the dtml-in tag. Did that patch, > or something like it, ever find its way into the Zope core? > > I also seem to remember some discussion of sorting on multiple items (but > can't find any trace of it in the archives). For example, in an employee > directory, sort on employee name within department. Anyone know how? Hi Loren (sorry for my "approximate english":) There is a good news in this matter. I'v noticed that in Zope 2.3.0b1 was included stricte similar way as my patch. Only names of variables was changed: My name of variable was sort-python, now exists sort_expr Additionally DC guys added reverse_expr variable. Here is a example of use (from my patch but translated to use sort_expr) <dtml-call "REQUEST.set('sortstrvar', _.string.lower('tItLe')+','+'id')"> <html> <pre> 1."Hardcoded" =========== <dtml-in "objectItems(['Image'])" sort=title,id> <dtml-var id>....<dtml-var title> </dtml-in> 2.Indirectly ============ <dtml-in "objectItems(['Image'])" sort_expr="'title,id'"> <dtml-var id>....<dtml-var title> </dtml-in> 3.Indirectly ============ <dtml-in "objectItems(['Image'])" sort_expr="sortstrvar"> <dtml-var id>....<dtml-var title> </dtml-in> 4.Indirectly ============ <dtml-in "objectItems(['Image'])" sort_expr="_.string.lower('tItLe')+','+'id'"> <dtml-var id>....<dtml-var title> </dtml-in> </pre> </html> > I'm trying to provide user-specified sorting on the records I pull from a > SQL database. When the user specifies sorting on Department, I assume he > wants the records order by Name within each department, but I can't see how > to do that with ZSQL or dtml-in. User would specify multiple keys sort (dr Lazarus patch which is included to core from Zope 2.2.2 (?)) eg: <dtml-call "REQUEST.set('usersort', 'department,name')"> <html> <pre> <dtml-in recordset sort_expr="usersort"> <dtml-var department> <dtml-var name> </dtml-in> </pre> </html> But best news for you is that sort_expr patch may be very simply implemented for Zope 2.2.4 and 2.2.5 Simply copy the file: <Zope230b1>/lib/python/DocumentTemplate/DT_In.py to <Zope224|5>/lib/python/DocumentTemplate/DT_In.py thats all you need :) It is possible because nothing else except sort_expr patch was changed in this file, without dependences and influences for other pieces of Zope Best Regards Adam -- Adam Karpierz [EMAIL PROTECTED] _______________________________________________ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
