Noted. I removed some while loops with tremendous results. It now works well. Regards.
On Sep 18, 2018 7:02 AM, "Massimo Di Pierro" <massimo.dipie...@gmail.com> wrote: > I understand the confusion. In SQLAlchemy for example people use .first() > for fetch one record. In web2py the feching is by the select. .first() just > gives you the fist of the records that were retrieved. > > On Sunday, 2 September 2018 18:52:35 UTC-7, Anthony wrote: >> >> - my first attempt will be to try to add indexes in the post and answers >>> Table on the field author. >>> - secondly i will try to change this row >>> >>>> row = db(db.post.author== auth.user.id).select(db.post.id, db.post. >>>> message, orderby=~db.post.id, limitby=(0,1)).first() >>> >>> to this >>>> >>>> row = db(db.post.author== auth.user.id).select(db.post.id, db.post. >>>> message, orderby=~db.post.id).first() >>> >>> >>> limitby ist not needed in that case. it is just my opinion. >>> >> >> Why would you not use limitby? Without limitby, the database will return >> every record in the table, and the the DAL will have to parse every record >> and convert it to a Row object -- and then all of those Row objects will >> simply be ignored, as only the first will be used in the code. >> >> Anthony >> > -- > 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 a topic in the > Google Groups "web2py-users" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/web2py/OJRaYk57ZPQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > web2py+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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.
