1 """

     2 19. OR lookups

     3 

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

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

     6 

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

     8 clauses using the variable ``django.db.models.Q`` (or any object with an

     9 ``add_to_query`` method).

    10 """

    11 

    12 from django.db import models

    13 

    14 class Article(models.Model):

    15     headline = models.CharField(max_length=50)

    16     pub_date = models.DateTimeField()

    17 

    18     class Meta:

    19        ordering = ('pub_date',)

    20 

    21     def __unicode__(self):

    22         return self.headline