On Friday, June 23, 2017 at 1:24:30 PM UTC-7, villas wrote: > > Hi Dave, > > Open your app on the commandline: > > python web2py.py -S yourapp -M > > Experiment a little... > > 1. for i, row in enumerate(rows) > 2. rows[0].test = 'whatever' >
I've kinda already done that. No tee-shirt appeared. /dps > > > > > On Friday, 23 June 2017 17:29:00 UTC+1, Dave S wrote: >> >> I have a fairly straight forward table, and a fairly easy db query: >> db(db.segment.parent == request.vars.id).select() >> >> For my use case, this returns a Rows object of 3 to 10 Row objects, and I >> do some simple calculations. >> for row in rows: >> if row.x: >> term1 = row.term >> if row.y: >> term2 = row.term >> return dict(rows=rows, mycalc = calc(term1,term2)) >> >> >> >> (ok, x is really "isstart" and y is "isstop", flags to mark endpoints, >> but that's being overly specific) >> >> I'd also like to compute a delta between the row.term value of each row >> and it's predecessor (by data entry convention, the table is ordered by >> id). So the 2 questions are: >> >> - can you tell the index in rows of the row you are working on? (I >> guess this is a Python question, not just web2py). In js, the map and >> reduce functions know the index in the array they have as input; is >> something similar available in a Python iteration? >> - can you add fields to a Row object, or to the parent Rows object, >> and have the view display it, or is a virtual field definition needed? >> >> Thanks. >> >> Dave S >> /dps >> >> -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
