Change the type of the Datastore field to Text from String?

Question

I can not do it. A list in which the application datastore viewer does not contain text as an option. I had to change the fields because some of my values ​​were too long for String, but now I cannot retroactively fix my old records.

Answer 1

To change the type of property used by old objects, you need to manually update each of them.

This can be done easily and efficiently using the mapping API . This guide explains how to use this API.

Nick .

Answer 2

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http://groups.google.com/group/google-appengine/browse_thread/thread/282dc825f9c46684.