On Apr 7, 6:26 pm, Vinicius Mendes <vbmen...@gmail.com> wrote: > On Wed, Apr 7, 2010 at 2:00 PM, Tom Evans <tevans...@googlemail.com> wrote: > > On Wed, Apr 7, 2010 at 5:39 PM, Daniel <unagimiy...@gmail.com> wrote: > > > Hi, > > > > Thank you for your help everyone. I know that I need to learn python > > > better, and I did read those articles. What is still a bit unclear to > > > me, though, is how could I add an "OR" or "AND" separator between Q > > > objects? > > > > So I have a list of qobjects like [qObj1, qObj2, qObj3]. > > > > What I want is something like Sample.objects.filter((qObj1 | qObj2), > > > qObj3) > > > > I know that the default is for all Q objects to be "ANDed" together. > > > I think the join operation is not going to work here, nor is > > > concatenation, but is there something obvious that I'm missing? > > > > THANK YOU :> > > > Documentation on how to combine Q objects: > > >http://docs.djangoproject.com/en/1.1/topics/db/queries/#complex-looku... > > > So you want to loop through them, and 'or' them together.. > > > filters = [ q1, q2, q3, q4, q5 ] > > q = None > > for f in filters: > > q = q | f if q else f > > Foo.objects.filter(q) > > Refining a little: > > filters = [q1,q2,q3,q4,q5] > q = Q() > for f in filters: > q |= f > Foo.objects.filter(q) > > Q() is identity for & and |.
You could go one further and use filters = [q1,q2,q3,q4,q5] q = reduce(lambda x,y: x|y, filters, Q()) Foo.objects.filter(q) -- G -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-us...@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
