gistfile1.txt

class NormalModelWereExtending(BaseModel):
    id = models.CharField(primary_key=True, db_column='id')
    name = models.CharField(db_column='mycolumn')

    class Meta:
        managed = False
        db_table = 'MyTable'


class MyProxyManager(models.Manager):
    def get_queryset(self , *args,  **kwargs):
        queryset = super().get_queryset(*args , **kwargs)
        # here we look at division = 3 or whatever the specific is
        queryset = queryset.filter(type = 3)
        return queryset    
        
class MyProxyModel(NormalModelWereExtending):
    class Meta : 
        proxy = True
    objects = MyProxyManager()
      
    def save(self , *args , **kwargs):
        # set our type in save every time since we're in the proxy
        self.type = 3
        return super().save(*args , **kwargs)