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-rw-r--r--parts/django/tests/modeltests/select_related/models.py59
1 files changed, 59 insertions, 0 deletions
diff --git a/parts/django/tests/modeltests/select_related/models.py b/parts/django/tests/modeltests/select_related/models.py
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+++ b/parts/django/tests/modeltests/select_related/models.py
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+"""
+41. Tests for select_related()
+
+``select_related()`` follows all relationships and pre-caches any foreign key
+values so that complex trees can be fetched in a single query. However, this
+isn't always a good idea, so the ``depth`` argument control how many "levels"
+the select-related behavior will traverse.
+"""
+
+from django.db import models
+
+# Who remembers high school biology?
+
+class Domain(models.Model):
+ name = models.CharField(max_length=50)
+ def __unicode__(self):
+ return self.name
+
+class Kingdom(models.Model):
+ name = models.CharField(max_length=50)
+ domain = models.ForeignKey(Domain)
+ def __unicode__(self):
+ return self.name
+
+class Phylum(models.Model):
+ name = models.CharField(max_length=50)
+ kingdom = models.ForeignKey(Kingdom)
+ def __unicode__(self):
+ return self.name
+
+class Klass(models.Model):
+ name = models.CharField(max_length=50)
+ phylum = models.ForeignKey(Phylum)
+ def __unicode__(self):
+ return self.name
+
+class Order(models.Model):
+ name = models.CharField(max_length=50)
+ klass = models.ForeignKey(Klass)
+ def __unicode__(self):
+ return self.name
+
+class Family(models.Model):
+ name = models.CharField(max_length=50)
+ order = models.ForeignKey(Order)
+ def __unicode__(self):
+ return self.name
+
+class Genus(models.Model):
+ name = models.CharField(max_length=50)
+ family = models.ForeignKey(Family)
+ def __unicode__(self):
+ return self.name
+
+class Species(models.Model):
+ name = models.CharField(max_length=50)
+ genus = models.ForeignKey(Genus)
+ def __unicode__(self):
+ return self.name \ No newline at end of file