WL10004: Document UUID generation

nmariz · nmariz · commit 6d07cc87e3b7 · 2017-05-31T11:16:32.000+01:00
MySQL Document Store requires JSON collection documents to contain a
_id column, which is used as the primary key and therefore must be
unique across the entire collection/table.

This worklog implements a document identifier generator based on RFC
4122 UUID format (version 1, variant 1), with a modification to match
the requirement of a stable id prefix.
diff --git a/lib/mysqlx/dbdoc.py b/lib/mysqlx/dbdoc.py
@@ -1,5 +1,5 @@
 # MySQL Connector/Python - MySQL driver written in Python.
-# Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
 
 # MySQL Connector/Python is licensed under the terms of the GPLv2
 # <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
@@ -55,7 +55,9 @@ def keys(self):
 
     def ensure_id(self):
         if "_id" not in self.__dict__:
-            self.__dict__["_id"] = uuid.uuid4().hex
+            uuid1 = str(uuid.uuid1()).upper().split("-")
+            uuid1.reverse()
+            self.__dict__["_id"] = "".join(uuid1)
         return self.__dict__["_id"]
 
     def __str__(self):
