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authorFlorian Apolloner <florian@apolloner.eu>2013-02-26 09:53:47 +0100
committerFlorian Apolloner <florian@apolloner.eu>2013-02-26 14:36:57 +0100
commit89f40e36246100df6a11316c31a76712ebc6c501 (patch)
tree6e65639683ddaf2027908d1ecb1739e0e2ff853b /tests/m2m_multiple
parentb3d2ccb5bfbaf6e7fe1f98843baaa48c35a70950 (diff)
downloaddjango-89f40e36246100df6a11316c31a76712ebc6c501.tar.gz
Merged regressiontests and modeltests into the test root.
Diffstat (limited to 'tests/m2m_multiple')
-rw-r--r--tests/m2m_multiple/__init__.py0
-rw-r--r--tests/m2m_multiple/models.py34
-rw-r--r--tests/m2m_multiple/tests.py86
3 files changed, 120 insertions, 0 deletions
diff --git a/tests/m2m_multiple/__init__.py b/tests/m2m_multiple/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/m2m_multiple/__init__.py
diff --git a/tests/m2m_multiple/models.py b/tests/m2m_multiple/models.py
new file mode 100644
index 0000000000..c2e3b030a4
--- /dev/null
+++ b/tests/m2m_multiple/models.py
@@ -0,0 +1,34 @@
+"""
+20. Multiple many-to-many relationships between the same two tables
+
+In this example, an ``Article`` can have many "primary" ``Category`` objects
+and many "secondary" ``Category`` objects.
+
+Set ``related_name`` to designate what the reverse relationship is called.
+"""
+
+from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
+
+
+@python_2_unicode_compatible
+class Category(models.Model):
+ name = models.CharField(max_length=20)
+ class Meta:
+ ordering = ('name',)
+
+ def __str__(self):
+ return self.name
+
+@python_2_unicode_compatible
+class Article(models.Model):
+ headline = models.CharField(max_length=50)
+ pub_date = models.DateTimeField()
+ primary_categories = models.ManyToManyField(Category, related_name='primary_article_set')
+ secondary_categories = models.ManyToManyField(Category, related_name='secondary_article_set')
+ class Meta:
+ ordering = ('pub_date',)
+
+ def __str__(self):
+ return self.headline
+
diff --git a/tests/m2m_multiple/tests.py b/tests/m2m_multiple/tests.py
new file mode 100644
index 0000000000..7bf88f99bb
--- /dev/null
+++ b/tests/m2m_multiple/tests.py
@@ -0,0 +1,86 @@
+from __future__ import absolute_import
+
+from datetime import datetime
+
+from django.test import TestCase
+
+from .models import Article, Category
+
+
+class M2MMultipleTests(TestCase):
+ def test_multiple(self):
+ c1, c2, c3, c4 = [
+ Category.objects.create(name=name)
+ for name in ["Sports", "News", "Crime", "Life"]
+ ]
+
+ a1 = Article.objects.create(
+ headline="Area man steals", pub_date=datetime(2005, 11, 27)
+ )
+ a1.primary_categories.add(c2, c3)
+ a1.secondary_categories.add(c4)
+
+ a2 = Article.objects.create(
+ headline="Area man runs", pub_date=datetime(2005, 11, 28)
+ )
+ a2.primary_categories.add(c1, c2)
+ a2.secondary_categories.add(c4)
+
+ self.assertQuerysetEqual(
+ a1.primary_categories.all(), [
+ "Crime",
+ "News",
+ ],
+ lambda c: c.name
+ )
+ self.assertQuerysetEqual(
+ a2.primary_categories.all(), [
+ "News",
+ "Sports",
+ ],
+ lambda c: c.name
+ )
+ self.assertQuerysetEqual(
+ a1.secondary_categories.all(), [
+ "Life",
+ ],
+ lambda c: c.name
+ )
+ self.assertQuerysetEqual(
+ c1.primary_article_set.all(), [
+ "Area man runs",
+ ],
+ lambda a: a.headline
+ )
+ self.assertQuerysetEqual(
+ c1.secondary_article_set.all(), []
+ )
+ self.assertQuerysetEqual(
+ c2.primary_article_set.all(), [
+ "Area man steals",
+ "Area man runs",
+ ],
+ lambda a: a.headline
+ )
+ self.assertQuerysetEqual(
+ c2.secondary_article_set.all(), []
+ )
+ self.assertQuerysetEqual(
+ c3.primary_article_set.all(), [
+ "Area man steals",
+ ],
+ lambda a: a.headline
+ )
+ self.assertQuerysetEqual(
+ c3.secondary_article_set.all(), []
+ )
+ self.assertQuerysetEqual(
+ c4.primary_article_set.all(), []
+ )
+ self.assertQuerysetEqual(
+ c4.secondary_article_set.all(), [
+ "Area man steals",
+ "Area man runs",
+ ],
+ lambda a: a.headline
+ )