[Digikam-users] Re: Digikam not writing metadata (caption/tag/rating)

[Gilles Caulier]

I forget to said that i see some Marcel work about this subject. He
has factored a lot of code about metadata engine from digiKam. The
goal is to be able to process metadata sync in a separate process
using multi-threading, without to block GUI and using another
processor.

Not all is complete of course, but it will be available during 2.X
serie, i think...

Gilles Caulier

2011/2/5 Gilles Caulier <caulier.gilles at gmail.com>:
> Yes, i know the problem. We have already an entry in bugzilla about.
>
> The goal is to cache metadata writing until user ask to push it to
> image. It's easy to do as all metadata are already recorded to
> database.
>
> I see Aperture and Lightroom working like this on my macbook. When
> application is shutdown a dialog appears to ask if metadat must be
> sync with DB. If yes, process can take a while until application
> shutdown really. It's acceptable.
>
> Gilles Caulier
>
> 2011/2/5 Elle Stone <l.elle.stone at gmail.com>:
>> I would like to second Julien's request. As it stands, here's how I
>> get digiKam to do what I really want (not write metadata until I'm
>> done for the session):
>>
>> 1. disable writing metadata,
>> 2. tag and caption a lot of stuff,
>> 3. re-enable writing metadata,
>> 4. write metadata out to all the images,
>> 5. then disable writing metadata again.
>>
>> I don't want digiKam to keep writing to disk as I tag and caption. I
>> want it to write only when I'm done. Otherwise it makes for a whole
>> lot of unnecessary writing to disk activity, especially when dealing
>> with a lot of images at once. I would love an option to configure
>> digikam to enable writing metadata, with the further option of either
>> "always write at once" or "delay until specifically asked to be
>> written". And it would be great to have the option to write out all
>> images, or just selected images, or just a given album of images.
>>
>> Elle
>>
>> On 2/5/11, Julien T <julien.t43 at gmail.com> wrote:
>>> 2011/2/5, Gilles Caulier <caulier.gilles at gmail.com>:
>>>> Please, can you take a look into you ~/.kde4/share/config/digikamrc
>>>> file if you have these lines :
>>>>
>>>> [Metadata Settings]
>>> [...]
>>>
>>> my file is .kde/share/config/digikamrc
>>> [Metadata Settings]
>>> Save Date Time=false
>>> Save EXIF Comments=false
>>> Save Rating=false
>>> Save Tags=false
>>> Save Template=false
>>> Update File Timestamp=false
>>> Write RAW Files=false
>>>
>>> It's stange because I ask digikam to save metadata to file
>>> In the interface, I have ... argh ... not checked. I check
>>> tags/captions/ratings/template and ask to write metadata to all files.
>>>
>>> I retry the whole test run and on each step, it appears to ask writing
>>> metadata to file and at the end, exiftool find the data.
>>>
>>> I'm a lot sorry for the whole fuss :(
>>>
>>> What I don't understand is
>>> * when checking each previous settings, it writes metadata on every change
>>> * when manually asking Album > write metadata to all files, it seems
>>> it did nothing. I would have thought about a way to make all changes
>>> at a single time. not this ?
>>>
>>> As I have a slow disk (but it's a netbook), is there a way to make the
>>> whole metadata writing at one time ? when closing digikam ?
>>>
>>> Last, for previously tagged/rated image, it seems 'Album > write'
>>> makes nothing and I need to ask 'Images > write' ... it seems starting
>>> some long metadata writing. don't know why. I will see when finished.
>>>
>>> Thanks a lot.
>>> Cheers,
>>>
>>> Julien
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>>> Digikam-users at kde.org
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>>>
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>