"""

OR lookups

To perform an OR lookup, or a lookup that combines ANDs and ORs, combine

``QuerySet`` objects using ``&`` and ``|`` operators.

Alternatively, use positional arguments, and pass one or more expressions of

clauses using the variable ``django.db.models.Q``.

"""

from django.db import models

class Article(models.Model):

    headline = models.CharField(max_length=50)

    pub_date = models.DateTimeField()

    class Meta:

        ordering = ("pub_date",)

    def __str__(self):

        return self.headline