Can you add a virtual field to the Cart table to do the counting for you? On Tue, 14 Jul 2020, 4:34 pm Vlad, <westgate6...@gmail.com> wrote:
> The following doesn't work: > > fields = [db.cart.id, db.cart.id.count()] > > > grid = SQLFORM.grid(db.cart, > fields=fields, > left = [db.cart_content.on(db.cart.id==db. > cart_content.cart)], > groupby=db.cart.id) > > what's the best way to accomplish this? > I simply wan to count how many items in each cart. > logically db.car.id.count() should really work here, but it doesn't. > > greatly appreciate any suggestions on how to do this properly. > > -- > 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. > To view this discussion on the web visit > https://groups.google.com/d/msgid/web2py/b49bb71f-2cfc-48eb-b1a4-84d8e828b1beo%40googlegroups.com > <https://groups.google.com/d/msgid/web2py/b49bb71f-2cfc-48eb-b1a4-84d8e828b1beo%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/web2py/CACWMBMOUVKNdeZ0VVtGfRrOk%3DP5fhiZV%2BPQDUscnC_HM%2BiuzqQ%40mail.gmail.com.
