Django - return multiple querysets in view

Question

Django 1.10

In my view, I have a function get_queryset() that, currently, returns one queryset. This function is called from another function, get_context(), which takes that data, uses it to get some values, and returns everything to the front end.

However, I now want to return 2 querysets from get_queryset(), one that is the full queryset and one that has a filter applied to it.

I assumed I could simply do something like:

full_results = query.all()
# do some filtering
filter_results = full_results.someFilter()

return full_results, filter_results

However, I have another function where these results get sent to FIRST before being sent to the front end. I figured I would be able to access these querysets easily with bracket notation, like this -

faceted = self.get_queryset()[0].facet('thing')

However! Turns out that I am unable to do so. I am trying to access a property on each item in the queryset in this second django function but am getting an error -

AttributeError: 'SearchQuerySet' object has no attribute 'feature'

So clearly I am doing something wrong. Is it possible to do what I am trying to do? Or would it be better to just make another function to return this data?

How about just using your view's `get_context_data()` function to do what it is you want to do? — voodoo-burger, Jul 09 '18 at 15:57

score 4 · Accepted Answer · answered Jul 09 '18 at 16:02

4

You can only return a single queryset from get_queryset. But get_context_data itself can be extended to add whatever you like.

def get_context_data(self, *args, **kwargs):
    context = super().get_context_data(*args, **kwargs)
    context['filter_results'] = context['full_results'].someFilter()
    return context

answered Jul 09 '18 at 16:02

Daniel Roseman

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I see! I didn't think about doing it like this but this seems to be way easier. Thanks Daniel, gonna try this out! – demluckycharms Jul 09 '18 at 16:06

Django - return multiple querysets in view

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