CODEWITHSUNDEEP
pythondjangodjango-models
Vingtoft
Vingtoft

Reputation: 14656

Django: How to get parameters from QuerySet

Consider the following Django model: 

class SomeModel(models.Model):
    some_var = models.IntergerField()

Whats the best way to get an array of a models parameters from a search results?

Example (not working of course):

a = SomeModel.objects.all().some_var

would give something like [3, 4, 1, 9, 1, 2]

Upvotes: 1

Views: 3645

Answers (2)

Fontinalis
Fontinalis

Reputation: 590

You can yield the list, this would like the following:

foo = [i.some_var for i in SomeModel.objects.all()]

But I've been notified that this would waste the memory.

Upvotes: 0

Sardorbek Imomaliev
Sardorbek Imomaliev

Reputation: 15400

There is existing queryset method called values_list https://docs.djangoproject.com/en/1.10/ref/models/querysets/#values-list

a = SomeModel.objects.all().values_list('some_var', flat=True)

We are using flat=True so that it will give flat list

Entry.objects.values_list('id').order_by('id')
[(1,), (2,), (3,), ...]
Entry.objects.values_list('id', flat=True).order_by('id')
[1, 2, 3, ...]

Upvotes: 5

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