db.table(1).field.isocalendar()[1] will works because you have a record selected...
But you don't have access to any field value in context of where clause db(** where clause **).select() Richard On Thu, Mar 13, 2014 at 2:17 PM, Richard Vézina <ml.richard.vez...@gmail.com > wrote: > I see you want to make a query but why you want to make that? > > Also, more experienced user correct me if I am wrong, but personnally I > never had good result doing what you are doing, I mean I don't remember > having it working correctly (even in SQL)... > > In : > (db.sale_order_header.sale_order_date.isocalendar() == > request.now.isocalendar() ) > You say transform my field value before checking if it equal to some value > db.sale_order_header.sale_order_date.isocalendar() > > How dow you want the DAL translate that into SQL? > > Did you have a look at the SQL generated by the DAL? > > (db.sale_order_header.sale_order_date.isocalendar() == > request.now.isocalendar() ).*_*select(...) > > Richard > > > > On Thu, Mar 13, 2014 at 1:59 PM, 黄祥 <steve.van.chris...@gmail.com> wrote: > >> yes, already tried but got an error traceback. what i want to achieve is >> something like example below, but when i've tested it, i got an error >> traceback. any idea how to achieve it in web2py? >> e.g. >> import datetime >> >> (db.sale_order_header.sale_order_date.strftime("%U") == >> request.now.strftime("%U") ) >> *AttributeError: 'Field' object has no attribute 'strftime'* >> >> (db.sale_order_header.sale_order_date.isocalendar() == >> request.now.isocalendar() ) >> (db.sale_order_header.sale_order_date.isocalendar()[1] == >> request.now.isocalendar()[1] ) >> *AttributeError: 'Field' object has no attribute 'isocalendar'* >> >> best regards, >> stifan >> >> -- >> 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. >> > > -- 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.