from django.db import models

class Article(models.Model):

    headline = models.CharField(max_length=100)

    pub_date = models.DateField()

    expire_date = models.DateField()

    class Meta:

        get_latest_by = "pub_date"

class Person(models.Model):

    name = models.CharField(max_length=30)

    birthday = models.DateField()

    # Note that this model doesn't have "get_latest_by" set.

# Ticket #23555 - model with an intentionally broken QuerySet.__iter__ method.

class IndexErrorQuerySet(models.QuerySet):

    """

    Emulates the case when some internal code raises an unexpected

    IndexError.

    """

    def __iter__(self):

        raise IndexError

class IndexErrorArticle(Article):

    objects = IndexErrorQuerySet.as_manager()