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' 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.
