Re: CoreData issue when updating a file format
Re: CoreData issue when updating a file format
- Subject: Re: CoreData issue when updating a file format
- From: mmalcolm crawford <email@hidden>
- Date: Wed, 11 May 2005 11:09:46 -0700
On May 11, 2005, at 10:20 AM, Bruno Blondeau wrote:
Non-trivial, yes. Tedious, yes. But migrating data models is
typically hard.
All these solutions are real nightmares... I thought CoreData was
supposed to help developers make things easiers.
It does.
Model changes are very frequent in typical applications and they
should be handled automatically in simple cases (if an attribute is
added, add the column, and use the default value for example).
Well, this is what is done in the XML case, so I really don't
understand why it isn't the case with the SQL data store...
<http://www.stepwise.com/Articles/2005/DBChanges/index.html>
<http://www.schemaresearch.com/products/srtransport/>
How is Apple expecting developers to easily use CoreData if model
migration isn't handled... well, this maybe won't be a problem for
v1 applications, but be prepared to hear a lot of complains from
developers new to CoreData, or even new to Cocoa, when they will
have to update the model of their applications...
Please file enhancement requests.
mmalc
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