thank you nan, i thought i could avoid the if-else structure..with some lookups or something
On Aug 17, 12:52 am, Nan <ringe...@gmail.com> wrote: > Filters can be applied in multiple statements, and querysets are > evaluated lazily, so the following would work and would only run a > single query, when you finally output or otherwise check the contents > of the results variable: > > def get_results(...): > ... > results = > MyThing.objects.filter(required_field=somevalue).filter(other_required_field=othervalue) > if optional_value_submitted: > results = results.filter(optional_field=optional_value) > if other_optional_value: > results = > results.filter(other_optional_field=other_optional_value) > return results > > On Aug 16, 8:20 am, john <deont...@gmail.com> wrote: > > > hi, > > i have a form with few fields as optional,i.e can be left blank, > > i want to search my db for values i receive from this form, how should > > i go on about writing my filters when some of values can be " ". > > any reference is kindly appreciated -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@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.
