I intend to get all site based offers from model OfferSite

filtered by model OfferItem

for today.

When I select everything without filter on the second model, I get the desired result (only 2 sites with offerem_set),

In [23]: OfferSite.objects.all().select_related("offeritem")
Out[23]: [<OfferSite: OfferSite object>, <OfferSite: OfferSite object>]

      

        
        
        
      

    

But when I try to filter the second model I get a lot of objects, I think it returns an object OfferSite

for each OfferItem. I expected only two objects OfferSite

with offeritem_set

to retrieve all the filtered OfferItem

s

``
In [24]: OfferSite.objects.all().select_related("offeritem").filter(offeritem__offer_date=tod)
Out[24]: [<OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, <OfferSite: OfferSite object>, '...(remaining elements truncated)...']

      

        
        
        
      

    

Is there a Django ORM way to get the desired result?

My Models

class OfferSite(models.Model):
    name = models.CharField(max_length=30)
    domain_url = models.URLField()


class OfferItem(models.Model):
    title = models.CharField(max_length=255)
    link = models.CharField(max_length=750)
    image = ImageField()
    price_after_discount = models.CharField(max_length=100, blank=True, null=True)
    price_before_discount = models.CharField(max_length=100, blank=True, null=True)
    discount = models.CharField(max_length=100, blank=True, null=True)
    offer_date = models.DateField(auto_now_add=True, default=datetime.date.today())
    offer_from = models.DateTimeField(blank=True, null=True)
    offer_to = models.DateTimeField(blank=True, null=True)
    single_item = models.BooleanField(default=True)
    site = models.ForeignKey(OfferSite)
    archived = models.BooleanField(default=False)
    likes = models.IntegerField(max_length=4, default=0)
    unlikes = models.IntegerField(max_length=4, default=0)
    abusive = models.IntegerField(max_length=3, default=0)