On Saturday, October 28, 2017 at 12:10:19 PM UTC-7, Anthony wrote: > > On Friday, October 27, 2017 at 7:37:40 PM UTC-4, Dave S wrote: >> >> >> >> On Thursday, October 26, 2017 at 7:26:48 AM UTC-7, Anthony wrote: >>> >>> There's no need to select the extra record and then drop it via Python. >>> Instead you can just change the range of the limitby tuple to get exactly >>> the records you want. >>> >>> >> Perhaps the issue is not knowing how many records there are. Solvable by >> doing a count(), but then you're making two queries (to get the count, and >> then to get the records). >> > > If limitby(0, 10) followed by slicing off the last record via [:-1] gets > you the records you want, then so does limitby(0, 9) with no slicing, > regardless of the overall record count. > > Anthony >
What you say is true, but I took limitby(0,10) to be a specific example, and that the general case was the real question, where you don't know how many records are involved. On the other hand, I am familiar with the idea of just getting a snapshot of the most recent records; I do that in one of my projects, and a fixed limitby() works beautifully, given the proper orderby(). /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.
