CODEWITHSUNDEEP
pythondjangodjango-filtermultiple-choice
Ihor
Ihor

Reputation: 117

How to create MultipleChoiceField in django-filter?

I have a model Color:

class Color(models.Model):
    color = models.CharField(max_length=32)

    def __str__(self):
        return self.color

And my Product model:

class Product(models.Model):
    ...
    color = models.ForeignKey('Color', on_delete=CASCADE)
    ...

So i need to create a filter that i'll able to get for example all red, blue or yellow products

How can i do that?

Upvotes: 3

Views: 4492

Answers (2)

Abdul Aziz Barkat
Abdul Aziz Barkat

Reputation: 21787

To create a filter with multiple choices for a model you can use the ModelMultipleChoiceFilter [django-filter docs]. You can also pass the form widget you want to get used for the field, hence for checkboxes you would pass CheckboxSelectMultiple [Django docs]:

from django import forms
import django_filters


class ProductFilter(django_filters.FilterSet):
    color = django_filters.ModelMultipleChoiceFilter(queryset=Color.objects.all(), widget=forms.CheckboxSelectMultiple())
    
    class Meta:
        model = Product
        fields = ['color']  # Add any other fields you want to filter to the list

Upvotes: 3

willeM_ Van Onsem
willeM_ Van Onsem

Reputation: 476557

You can .filter(…) [Django-doc] with:

Product.objects.filter(color__name=some_color_name)

with some_color_name for example 'Yellow'. If you have a color object, you can work with:

Product.objects.filter(color=some_color)

One can use double underscores (__) to look "through" relations.

Upvotes: 1

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