sql: handle unicode elements in ranked-items and password fields (#6921)

wcs/sql.py

@@ -725,7 +725,7 @@ class SqlMixin(object):
             if value is not None:
                 if field.key in ('ranked-items', 'password'):
                     # turn {'poire': 2, 'abricot': 1, 'pomme': 3} into an array
-                    value = [[x, str(y)] for x, y in value.items()]
+                    value = [[x, unicode(y).encode('utf-8')] for x, y in value.items()]
                 elif sql_type == 'varchar':
                     assert isinstance(value, basestring)
                 elif sql_type == 'date':
@@ -757,7 +757,7 @@ class SqlMixin(object):
                 elif field.key == 'password':
                     d = {}
                     for fmt, val in value:
-                        d[fmt] = val
+                        d[fmt] = unicode(val, 'utf-8')
                     value = d
                 if sql_type == 'date':
                     value = value.timetuple()