Got it. I need to remove the initial db to make that into a query (~db.pc.id.belongs(db(db.assigned.id > 0)._select(db.assigned.id))
On Friday, September 4, 2015 at 3:37:50 PM UTC-5, P T wrote: > > Thank you Richard, your expression returns ROWS and can't be used in > SQLFORM.grid. When I removed the last select > > db(~db.pc.id.belongs(db(db.assigned.id > 0)._select(db.assigned.id)) > > then I get > > File "E:\web2py 2.9.12\gluon\sqlhtml.py", line 2139, in grid > field_id = tables[0]._id > IndexError: list index out of range > > > Dave, the tables are related. e.g. the table "assigned" has a field > "computer" of type db.pc > > > > Thanks, > PT > > > On Friday, September 4, 2015 at 3:23:47 PM UTC-5, Dave S wrote: >> >> I'm puzzled about the why ... >> >> On Friday, September 4, 2015 at 12:42:32 PM UTC-7, Richard wrote: >>> >>> db(~db.pc.id.belongs(db(db.assigned.id > 0)._select(db.assigned.id >>> )).select(db.pc.ALL) >>> >>> Richard >>> >>> >>> >>> On Fri, Sep 4, 2015 at 3:35 PM, P T <[email protected]> wrote: >>> >>>> >>>> Hello Forum, >>>> >>>> Please help me in getting the equivalent DAL query for the following >>>> SQL query. I intend to pass this on to SQLFORM.grid >>>> >>>> Select * from db.pc where db.pc.id not in (select unique >>>> db.assigned.computer from db.assigned) >>>> >>>> >> when there's no reference between tables: >> >> >> >> >>> Web2Py Version >>>> 2.9.12-stable+timestamp.2015.02.15.23.04.25 >>>> (Running on Rocket 1.2.6, Python 2.7.9) >>>> >>>> db.define_table('staff', >>>> Field('name', 'string', unique=True), >>>> format='%(name)s') >>>> >>>> db.define_table('pc', >>>> Field('csi', 'string', unique=True), >>>> format='%(csi)s') >>>> >>>> db.define_table('assigned', >>>> Field('staff', db.staff), >>>> Field('computer', db.pc)) >>>> >>>> Thanks, >>>> PT >>>> >>>> >>> >> (see, no "Field('name', 'reference othertable', ...)") >> >> /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 [email protected]. For more options, visit https://groups.google.com/d/optout.
