Copying (migrating) a field to another

Ashkan Sirous

Vote:

Hi,

I have a change in my page/block type and I want to migrate the data in the old field to the new one. How to do it?

To elaborate more, before I had a ContentReference field on my page and now I found out that I need a list, but I cannot go and update every page in the production environment.

First I thought I might be able to do it using default values, but then I've remembered that those values will only update the field on page creation.

Then I thouht of my implementation of IInitializableModule, but how can I access all my pages from here? And is it even a valid approach?

#183776

Edited, Oct 23, 2017 11:33

valdis

Vote:

what about `MigrationStep`? Can that solve your prob?

#183873

Oct 24, 2017 9:01

Bob Bolt

Vote:

Valdis, You're referring to this feature, right?

https://world.episerver.com/documentation/developer-guides/CMS/Content/Refactoring-content-type-classes/

#183930

Oct 24, 2017 17:29

valdis

Vote:

Yes

#183931

Oct 24, 2017 17:36

Erik Henningson

Vote:

Hi Ashkan. I these kind of situation a ususllay create a scheduled job that takes care of the content migration. If everything works you only run the job once, and then remove it again.
In it's simplest form the scheduled job could loop through all pages of the affected page type and update those page. If your site has a lot of pages that approach might take too long though...

#184197

Oct 25, 2017 21:23

Ashkan Sirous

Vote:

@bob and @Valdis,

Thanks guys for guidance. Unfortunatly I cannot use migration steps becase the property is a block type and in migration steps "The previous or new property type cannot be a block." :(

@Erik thanks for the response. I will try that :) thanks

#184411

Oct 26, 2017 10:17

Ashkan Sirous

Vote:

Thanks Erik, that works fine :)

#184414

Oct 26, 2017 10:53

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Copying (migrating) a field to another