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Added 'Comparing objects' section to docs/db-api.txt

git-svn-id: bcc190cf-cafb-0310-a4f2-bffc1f526a37
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1 parent 946b1a5 commit 017aa34ddb0e10f545c641097cd7de524f9f90e9 @adrianholovaty adrianholovaty committed
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  1. +19 −0 docs/db-api.txt
19 docs/db-api.txt
@@ -509,6 +509,25 @@ deletes the object and has no return value. Example::
>>> c.delete()
+Comparing objects
+To compare two model objects, just use the standard Python comparison operator,
+the double equals sign: ``==``. Behind the scenes, that compares the primary
+key values of two models.
+Using the ``Poll`` example above, the following two statements are equivalent::
+ some_poll == other_poll
+ ==
+If a model's primary key isn't called ID, no problem. Comparisons will always
+use the primary key, whatever it's called. For example, if a model's primary
+key field is called ``name``, these two statements are equivalent::
+ some_obj == other_obj
+ ==
Extra instance methods

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