Dear Alex, Any ways to migrate from 3.8 to 4.2 directly. I have around 150 tables. I cannot depend upon direct sql import because i have type hierarchy ,where my base table has "Id" and "TypeId" which are auto generated , so i will have to create my own import utility which can do this job for me.

please suggest if you have some other solution. i want to keep migration from old to new application as simple and quick as possible with practically no loss of data.


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asked Jun 17 '10 at 07:21

HannanKhanji's gravatar image


You're only talking about the data migration. How did you convert your model from 3.x to 4.X?

Thanks Marco

(Jun 17 '10 at 07:21) Marco Marco's gravatar image

One Answer:

There is no any intagrated option for this. Other options are listed here: viewtopic.php?f=29&t=5879

Model migration is, likely, less complex problem, if you don't use the infrastructure intensively (e.g. event-like methods in DataObject type and so on). Otherwise you'll need to care about conversion of old patterns to new ones. The good thing here is that behavior of Entity in v4.0 is very similar to behavior of DataObject in v3.X. But method names and almost everything else is new.

answered Jun 17 '10 at 19:56

Alex%20Yakunin's gravatar image

Alex Yakunin

Have you automated the model conversion for other projects? or just rebuild from scratch?

(Jun 17 '10 at 19:56) Marco Marco's gravatar image

hannankhanji wrote: dear mdissel, No not yet. i am still not decided to go with 4.x ,or with 3.x version. though i have started making test proj on v4.3 .

(Jun 17 '10 at 19:56) Editor Editor's gravatar image
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Asked: Jun 17 '10 at 07:21

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