[digikam] [Bug 358490] New: Not a problem, just an information request about "uniqueHash" field from "Images" table

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https://bugs.kde.org/show_bug.cgi?id=358490

            Bug ID: 358490
           Summary: Not a problem, just an information request about
                    "uniqueHash" field from "Images" table
           Product: digikam
           Version: 4.12.0
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: Database-Migration
          Assignee: [hidden email]
          Reporter: [hidden email]

Trying to migrate my ACDSEE photos database to digikam, I don't know how the
field "uniqueHash" is calculate. The name alone is not enough : what are the
other informations used ?
I did not find the answer in the DBSCHEMA.ODS and I don't want download the
whole digikam source code to find it.

I developping a little java tool to "copy" the export file from ACDSEE (xml
file) into the digikam database.

Thank's for your help.

Reproducible: Always

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--- Comment #1 from [hidden email] ---
There are 2 methods to compute unique hash value from a file and to store it to
DB :

V1 :
https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/loaders/dimgloader.cpp#L368

V2 :

https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/loaders/dimgloader.cpp#L323

Historically, V1 is older one. V2 is now used instead since a while. V1 still
here for compatibility.

Gilles Caulier

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--- Comment #2 from Bruno Sapede <[hidden email]> ---
Thank's for your answer.

Le 24/01/2016 18:29, via KDE Bugzilla a écrit :

> https://bugs.kde.org/show_bug.cgi?id=358490
>
> [hidden email] changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |[hidden email]
>
> --- Comment #1 from [hidden email] ---
> There are 2 methods to compute unique hash value from a file and to store it to
> DB :
>
> V1 :
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/loaders/dimgloader.cpp#L368
>
> V2 :
>
> https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/dimg/loaders/dimgloader.cpp#L323
>
> Historically, V1 is older one. V2 is now used instead since a while. V1 still
> here for compatibility.
>
> Gilles Caulier
>

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         Resolution|---                         |INVALID

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