Filtering Queryset by Foreign Key Properties

class ProductType(models.Model):

    image = models.ImageField(upload_to='products_type_images/')
    name = models.CharField(max_length=20, blank=True, null=True, default=None)
    is_active = models.BooleanField(default=True)

    def __str__(self):
        return "%s" % self.name


class Product(models.Model):

    name = models.CharField(max_length=20)
    price = models.DecimalField(max_digits=10, decimal_places=2, default=0)
    short_description = models.TextField(blank=True, null=True, default=None, max_length=100)
    description = models.TextField(blank=True, null=True, default=None)
    is_active = models.BooleanField(default=True)
    type = models.ForeignKey(ProductType, blank=True, null=True, default=None)

    def __str__(self):
        return "(%s, %s)" % (self.id, self.name)


class ProductImage(models.Model):

    product = models.ForeignKey(Product, blank=True, null=True, default=None)
    image = models.ImageField(upload_to='products_images/')
    is_main = models.BooleanField(default=False)
    is_active = models.BooleanField(default=True)
    created = models.DateTimeField(default=timezone.now)

 

def category(request):
    query = request.GET.get("q")
    if query:

          products_images_list = ProductImage.objects.filter(product__type__name__contains=query) 

But in my template this is not working I want to filter my product's types. Can you help my? Django 1.11

Thank you.

 

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