Author: mtredinnick
Date: 2009-03-19 17:46:28 -0500 (Thu, 19 Mar 2009)
New Revision: 10092
Modified:
django/trunk/tests/modeltests/defer/models.py
Log:
Added a test for defer() / only() to make sure saving continues to work.
Modified: django/trunk/tests/modeltests/defer/models.py
===================================================================
--- django/trunk/tests/modeltests/defer/models.py 2009-03-19 09:43:45 UTC
(rev 10091)
+++ django/trunk/tests/modeltests/defer/models.py 2009-03-19 22:46:28 UTC
(rev 10092)
@@ -14,6 +14,9 @@
value = models.CharField(max_length=50)
related = models.ForeignKey(Secondary)
+ def __unicode__(self):
+ return self.name
+
def count_delayed_fields(obj, debug=False):
"""
Returns the number of delayed attributes on the given model instance.
@@ -86,4 +89,14 @@
# KNOWN NOT TO WORK: >>>
count_delayed_fields(qs.only('name').select_related('related')[0])
# KNOWN NOT TO WORK >>>
count_delayed_fields(qs.defer('related').select_related('related')[0])
+# Saving models with deferred fields is possible (but inefficient, since every
+# field has to be retrieved first).
+
+>>> obj = Primary.objects.defer("value").get(name="p1")
+>>> obj.name = "a new name"
+>>> obj.save()
+>>> Primary.objects.all()
+[<Primary: a new name>]
+
+
"""}
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