Fixed #6666: Corrected a bind param formatting issue when performing 'year'…

Fixed #6666: Corrected a bind param formatting issue when performing 'year' lookups on DateFields using Oracle.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7274 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/fields/__init__.py

@@ -230,9 +230,14 @@ class Field(object):
                 raise ValueError("The __year lookup type requires an integer argument")
             if settings.DATABASE_ENGINE == 'sqlite3':
                 first = '%s-01-01'
+                second = '%s-12-31 23:59:59.999999'
+            elif settings.DATABASE_ENGINE == 'oracle' and self.get_internal_type() == 'DateField':
+                first = '%s-01-01'
+                second = '%s-12-31'
             else:
                 first = '%s-01-01 00:00:00'
-            return [first % value, '%s-12-31 23:59:59.999999' % value]
+                second = '%s-12-31 23:59:59.999999'
+            return [first % value, second % value]
         raise TypeError("Field has invalid lookup: %s" % lookup_type)
 
     def has_default(self):