diff options
Diffstat (limited to 'tests/testapp/models/many_to_one_null.py')
| -rw-r--r-- | tests/testapp/models/many_to_one_null.py | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/tests/testapp/models/many_to_one_null.py b/tests/testapp/models/many_to_one_null.py deleted file mode 100644 index c3c92601f7..0000000000 --- a/tests/testapp/models/many_to_one_null.py +++ /dev/null @@ -1,78 +0,0 @@ -""" -16. Many-to-one relationships that can be null - -To define a many-to-one relationship that can have a null foreign key, use -``ForeignKey()`` with ``null=True`` . -""" - -from django.core import meta - -class Reporter(meta.Model): - name = meta.CharField(maxlength=30) - - def __repr__(self): - return self.name - -class Article(meta.Model): - headline = meta.CharField(maxlength=100) - reporter = meta.ForeignKey(Reporter, null=True) - - def __repr__(self): - return self.headline - -API_TESTS = """ -# Create a Reporter. ->>> r = reporters.Reporter(name='John Smith') ->>> r.save() - -# Create an Article. ->>> a = articles.Article(headline="First", reporter=r) ->>> a.save() - ->>> a.reporter_id -1 - ->>> a.get_reporter() -John Smith - -# Article objects have access to their related Reporter objects. ->>> r = a.get_reporter() - -# Create an Article via the Reporter object. ->>> a2 = r.add_article(headline="Second") ->>> a2 -Second ->>> a2.reporter_id -1 - -# Reporter objects have access to their related Article objects. ->>> r.get_article_list(order_by=['headline']) -[First, Second] ->>> r.get_article(headline__startswith='Fir') -First ->>> r.get_article_count() -2 - -# Create an Article with no Reporter by passing "reporter=None". ->>> a3 = articles.Article(headline="Third", reporter=None) ->>> a3.save() ->>> a3.id -3 ->>> a3.reporter_id ->>> print a3.reporter_id -None ->>> a3 = articles.get_object(pk=3) ->>> print a3.reporter_id -None - -# An article's get_reporter() method throws ReporterDoesNotExist -# if the reporter is set to None. ->>> a3.get_reporter() -Traceback (most recent call last): - ... -ReporterDoesNotExist - -# To retrieve the articles with no reporters set, use "reporter__isnull=True". ->>> articles.get_list(reporter__isnull=True) -[Third] -""" |
