[ckan-dev] Versionning / history of resources

[hotz]

We are currently developing it and have no repo.
Here is a (still buggy) development side:
http://hitec-race.informatik.uni-hamburg.de/dataset/3d-stadtmodell4

"Frühere Version" means "Earlier Version" and
"Nachfolgende Version" means "Succeeding Version".
Click on "Nachfolgende Version" and you will be moved to the next 
dataset, etc.
Those datasets have all the same title (still) and nearly no difference 
(because of bugs).
However, by these links the user can navigate through the versions.
Do not click on "Frühere Version" this is linked to another wrong 
dataset, we are under
development....
Best,
Lothar
Just say "Lothar" (which is the surname) , that would be enough ;-)


Am 07.07.2015 um 22:59 schrieb Stéphane Guidoin:
> Thanks Hotz!
>
> Do you have a repo or some code you have developed for that? Or 
> something that I could access to see how it behaves?
>
> Stéphane
>
> 2015-07-07 16:48 GMT-04:00 hotz <hotz at informatik.uni-hamburg.de 
> <mailto:hotz at informatik.uni-hamburg.de>>:
>
>     Hi Stéphane,
>
>     we are working on versioning. We have decided for our application to
>     handle versioning on dataset level not on resource level. Hence,
>     if a resource of a dataset changes we create a new dataset which
>     is a new version of the previous dataset containing the not
>     changed resource.
>     The basic idea is that a current dataset has the most recent
>     resources, and
>     older versions of that dataset are related to it by the
>     CKAN-relation child-of (and
>     backward parent-of). The historical resource files have to be
>     stored somewhere
>     in an archive.
>
>     Hope that helps,
>     Lothar
>
>
>     Am 07.07.2015 um 15:23 schrieb Stéphane Guidoin:
>
>         Hello,
>
>         Some best practice in terms of open data raise the fact that
>         resources (files) should be versionned and it should be
>         possible to access past version of a resource. In an ideal
>         world, the resource itself should contain historical trail
>         (e.g date when a record was created/deleted) but it's not
>         always possible.
>
>         From my ckan understanding, CKAN does not support that out of
>         the box (the only option is to add new resources with dates
>         but you quickly end up with dozens of resources in a dataset).
>         Does someone has already evaluated how to do that? For example
>         have a resource and a link/button to access historical file?
>
>         Stéphane
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>
>     -- 
>     Dr. Lothar Hotz
>     HITeC e.V., University of Hamburg
>     Vogt-Kölln-Str. 30, 22527 Hamburg
>     Tel: 040/42883-2605; Fax: 040/42883-2572
>     E-Mail: hotz at informatik.uni-hamburg.de
>     <mailto:hotz at informatik.uni-hamburg.de>
>     WWW: www.hitec-hh.de <http://www.hitec-hh.de>
>     Private page: kogs-www.informatik.uni-hamburg.de/~hotz
>     <http://kogs-www.informatik.uni-hamburg.de/%7Ehotz>
>
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-- 
Dr. Lothar Hotz
HITeC e.V., University of Hamburg
Vogt-Kölln-Str. 30, 22527 Hamburg
Tel: 040/42883-2605; Fax: 040/42883-2572
E-Mail: hotz at informatik.uni-hamburg.de
WWW: www.hitec-hh.de
Private page: kogs-www.informatik.uni-hamburg.de/~hotz

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