Activate/deactivate filtering in django based on condition

I have a bool and if it is True, I want to filter in my query by some stuff, if not I don't want to filter.

At the moment my solution is this:

if my_boolean:
    objects = Class.objects.filter(argument=valuexyz, ...)
else:
    objects = Class.objects.filter(...)

My real query is much longer. I just used this for simplification. Now my questions is could I do this inline?

Like:

objects = Class.objects.filter( if my_boolean: argument=valuexyz; else: no_filtering)`

Is there a way to do it like this somehow? This would save me quite some redundant lines of code.

Your current method is fast and readable, given that there is only one boolean and only 2 possible queries. I would leave it as it is. That being said, if your actual use case is more complex, you can use:

1. Keyword argument unpacking using the ** operator with a dict:

my_filter = {
  "field1": "foo"
  "field2__gt": 10
}
if my_boolean:
    my_filter["additional_field"] = "bar"
objects = MyModel.objects.filter(**my_filter)

2. Q objects:

my_q = Q(field1="foo", field2__gt=10)
if my_boolean:
    my_q &= Q(additional_field="bar")
objects = MyModel.objects.filter(my_q)