Question

Is there a wildcard character in Django to use in an Objects.filter?

For example, is there a character that is the equivalent of doing this:

Prices.objects.filter(a = example1
                     ,b = example2
                    #,c = example3
)

i.e. instead of commenting out c, could I not put c = WILDCARD or c = *… you get the jist. Thank you.

EDIT: As in, if you’ve got a big list of attributes that can be searched for and you only want to search a select few, you aren’t exactly going to have loads of functions that doing those specific searches. I need some kind of character that tells Django and then to SQL “this field doesnt matter, i want everything here”… not including the field (like in the example) just creates a shedload of functions.

Answer 1

The only thing to do is a dict of attributes names and values that you dynamically filter with:

filters = {"a": "example1", "b": "example2", "c": "example3" }
prices = Prices.objects.filter(**filters)

Then you set the filters dict at runtime, add or remove key/val pairs as appropriate. That **filters is a keyword argument. Check here for more info:

http://www.nomadjourney.com/2009/04/dynamic-django-queries-with-kwargs/