Fixed #6254: Made fetchone() in the oracle backend correctly convert

strings to unicode objects.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6995 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/oracle/base.py

@@ -516,7 +516,10 @@ class FormatStylePlaceholderCursor(Database.Cursor):
         return Database.Cursor.executemany(self, query, new_param_list)
 
     def fetchone(self):
-        return to_unicode(Database.Cursor.fetchone(self))
+        row = Database.Cursor.fetchone(self)
+        if row is None:
+            return row
+        return tuple([to_unicode(e) for e in row])
 
     def fetchmany(self, size=None):
         if size is None:

tests/regressiontests/backends/models.py

@@ -8,6 +8,13 @@ class Square(models.Model):
     def __unicode__(self):
         return "%s ** 2 == %s" % (self.root, self.square)
 
+class Person(models.Model):
+    first_name = models.CharField(max_length=20)
+    last_name = models.CharField(max_length=20)
+
+    def __unicode__(self):
+        return u'%s %s' % (self.first_name, self.last_name)
+
 if connection.features.uses_case_insensitive_names:
     t_convert = lambda x: x.upper()
 else:
@@ -32,4 +39,25 @@ __test__ = {'API_TESTS': """
 >>> Square.objects.count()
 11
 
+#6254: fetchone, fetchmany, fetchall return strings as unicode objects
+>>> Person(first_name="John", last_name="Doe").save()
+>>> Person(first_name="Jane", last_name="Doe").save()
+>>> Person(first_name="Mary", last_name="Agnelline").save()
+>>> Person(first_name="Peter", last_name="Parker").save()
+>>> Person(first_name="Clark", last_name="Kent").save()
+>>> opts2 = Person._meta
+>>> f3, f4 = opts2.get_field('first_name'), opts2.get_field('last_name')
+>>> query2 = ('SELECT %s, %s FROM %s ORDER BY %s'
+...          % (qn(f3.column), qn(f4.column), t_convert(opts2.db_table),
+...             qn(f3.column)))
+>>> cursor.execute(query2) and None or None
+>>> cursor.fetchone()
+(u'Clark', u'Kent')
+
+>>> list(cursor.fetchmany(2))
+[(u'Jane', u'Doe'), (u'John', u'Doe')]
+
+>>> list(cursor.fetchall())
+[(u'Mary', u'Agnelline'), (u'Peter', u'Parker')]
+
 """}