Re: Searching images on usb disks

[Marina Ciatta]

Hello,

Well, I'm somewhat surprised that my question didn't raise any
answers, even negative ones.
Surprised because I couldn't imagine to be the only person to
have images on several usb disks...
I have probably to take it that it's not possible to organize
images not on the local disk. Sad for me :-(

Saluti,
Marina


Il 2014-09-05 22:01 Marina Ciatta ha scritto:

> Hello,
>
> I am new to digikam, and to this list too :)
> Actually, I am being trying digikam for a future project.
> Briefly, the idea is to build a database for a large amount of
> images, images being stored on several usb disks (typically
> from 15 to 20).
> What is expected is to be able to search the database on keywords
> and technical hints on images. No images edition is necessary.
>
> I did tests with 4 usb disks, plugging them one after the other
> and declaring new collection on removable media, then scanning
> for new images. All worked perfectly fine (though a bit long).
>
> Problems come when I do some search tries, with some keywords
> I known they exist in many images. Nothing appears in the
> search results. Or, more precisely, only images belonging to the
> last scanned disk, still plugged, appear; not the others.
>
> This is a bit surprising for me, as after reading digikam docs
> I thought all the indexing data, keywords, tags et al., was stored
> in a database local to my computer.
> I am aware that without a disk plugged, the image itself cannot be
> accessed nor edited, but shouldn't it appear at least in the search
> results icons views ?
>
> How can I do that ? Did I misunderstand something ?
> Did I do something wrong ? Did I missed something, an option ?
> Help and hints would be warmly appreciated, thanks in advance.
>
> Saluti,
> Marina

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[Gordon Cooper]

Hello Marina,
                      I have had similar problems with a collection of
images spread over two hard disks running on the same machine.

I did not find a real answer and put it aside for trying to fix when I
had more time.  I have not done that yet, but like yourself, I would
expect it to be possible. Will try again in a few days, have a lengthy
technical document to finish first.

Regards,
Gordon.
Tauranga
New Zealand.


On 20/09/14 13:28, Marina Ciatta wrote:

>
> Hello,
>
> Well, I'm somewhat surprised that my question didn't raise any
> answers, even negative ones.
> Surprised because I couldn't imagine to be the only person to
> have images on several usb disks...
> I have probably to take it that it's not possible to organize
> images not on the local disk. Sad for me :-(
>
> Saluti,
> Marina
>
>

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[tosca]

I use 2 external USB disks, but they are plugged in when I work with Digikam.

I have huge response time problems when updating tags and other attributes, though (see my other post on the subject), but I don't think this is related.

Marie-Noëlle

2014-09-20 3:28 GMT+02:00 Marina Ciatta <[hidden email]>:

Hello,

Well, I'm somewhat surprised that my question didn't raise any
answers, even negative ones.
Surprised because I couldn't imagine to be the only person to
have images on several usb disks...
I have probably to take it that it's not possible to organize
images not on the local disk. Sad for me :-(

Saluti,
Marina


Il 2014-09-05 22:01 Marina Ciatta ha scritto:

Hello,

I am new to digikam, and to this list too :)
Actually, I am being trying digikam for a future project.
Briefly, the idea is to build a database for a large amount of
images, images being stored on several usb disks (typically
from 15 to 20).
What is expected is to be able to search the database on keywords
and technical hints on images. No images edition is necessary.

I did tests with 4 usb disks, plugging them one after the other
and declaring new collection on removable media, then scanning
for new images. All worked perfectly fine (though a bit long).

Problems come when I do some search tries, with some keywords
I known they exist in many images. Nothing appears in the
search results. Or, more precisely, only images belonging to the
last scanned disk, still plugged, appear; not the others.

This is a bit surprising for me, as after reading digikam docs
I thought all the indexing data, keywords, tags et al., was stored
in a database local to my computer.
I am aware that without a disk plugged, the image itself cannot be
accessed nor edited, but shouldn't it appear at least in the search
results icons views ?

How can I do that ? Did I misunderstand something ?
Did I do something wrong ? Did I missed something, an option ?
Help and hints would be warmly appreciated, thanks in advance.

Saluti,
Marina

--
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- BOLZANO
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Le 20/09/2014 03:28, Marina Ciatta a écrit :

> I have probably to take it that it's not possible to organize
> images not on the local disk. Sad for me :-(

AFAIK it's not possible to work on images not present.

that said, the database is that, a data base and it should be possible to read
it directly with scripts, specially in read only mode.

Main problem I have is that usb drive is prone to change, and digikam do not
like collection moves, but this is an other story.

jdd


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[Marina Ciatta]

Hello,

Many thanks Gordon, Marie-Noëlle, jdd, for comments and hints.

@Marie-Noëlle
> I use 2 external USB disks, but they are plugged in when I work
> with Digikam.
Same for me, only images on currently plugged disks seem to be alive
and other images seem to be ignored.

@jdd
> that said, the database is that, a data base and it should be possible
> to read it directly with scripts, specially in read only mode.
Oh God, you're killing me !
I am totally unable to do such stuff. My only programming skills are to
setup
my coffee machine to start at 7 a.m. :)


Just a last question (and after that I promise to shut up)
Someone sent me a suggestion :
> Si dovrebbe cercare di fare una copia locale di tutte le tue foto,
> tutto piccolo per risparmiare spazio ...
I'll translate :
The suggestion is to build local copies of all images on all usb disks,
with very reduced size versions to save disk space.
Sounds this should work, but probably will take a long time so, before
trying this, I'd like to know if anyone has already implemented such a
work,
and if results are as expected ?
Thanks,

Saluti,
Marina


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[Gilles Caulier-4]

Please read this report and especially the last comment from Marcel :

https://bugs.kde.org/show_bug.cgi?id=191494#c29

For more details, ask to Marcel in this file through bugzilla.

Gilles

2014-09-20 18:38 GMT+02:00 Marina Ciatta <[hidden email]>:

>
> Hello,
>
> Many thanks Gordon, Marie-Noëlle, jdd, for comments and hints.
>
> @Marie-Noëlle
>>
>> I use 2 external USB disks, but they are plugged in when I work
>> with Digikam.
>
> Same for me, only images on currently plugged disks seem to be alive
> and other images seem to be ignored.
>
> @jdd
>>
>> that said, the database is that, a data base and it should be possible
>> to read it directly with scripts, specially in read only mode.
>
> Oh God, you're killing me !
> I am totally unable to do such stuff. My only programming skills are to
> setup
> my coffee machine to start at 7 a.m. :)
>
>
> Just a last question (and after that I promise to shut up)
> Someone sent me a suggestion :
>>
>> Si dovrebbe cercare di fare una copia locale di tutte le tue foto,
>> tutto piccolo per risparmiare spazio ...
>
> I'll translate :
> The suggestion is to build local copies of all images on all usb disks,
> with very reduced size versions to save disk space.
> Sounds this should work, but probably will take a long time so, before
> trying this, I'd like to know if anyone has already implemented such a work,
> and if results are as expected ?
> Thanks,
>
> Saluti,
> Marina
>
>
> --
> - CIATTA M.
> - BOLZANO
> - Ognuno ha il suo rametto di pazzia
> _______________________________________________
> Digikam-users mailing list
> [hidden email]
> https://mail.kde.org/mailman/listinfo/digikam-users

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[tosca]

I wouldn't go that way, as I could be very complicate and confusing, and lead to mistakes ...

I'd rather use bigger disks and/or more units.

Marie-Noëlle

2014-09-20 18:38 GMT+02:00 Marina Ciatta <[hidden email]>:

The suggestion is to build local copies of all images on all usb disks,
with very reduced size versions to save disk space.
Sounds this should work, but probably will take a long time so, before
trying this, I'd like to know if anyone has already implemented such a work,
and if results are as expected ?
Thanks,

Saluti,
Marina

--

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Site personnel - Photographe en Cévennes sur FB

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Le 20/09/2014 18:38, Marina Ciatta a écrit :

> @jdd
>> that said, the database is that, a data base and it should be possible
>> to read it directly with scripts, specially in read only mode.
> Oh God, you're killing me !
> I am totally unable to do such stuff. My only programming skills are to setup
> my coffee machine to start at 7 a.m. :)

depending what you want. If you only want to search the database, you can
provably use:

http://sqlitebrowser.org/

> The suggestion is to build local copies of all images on all usb disks,
> with very reduced size versions to save disk space.

you said "What is expected is to be able to search the database on keywords
and technical hints on images. No images edition is necessary."

sqlite browser should give you the answer

jdd


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Le 20/09/2014 18:49, Marie-Noëlle Augendre a écrit :
> I wouldn't go that way, as I could be very complicate and confusing, and lead
> to mistakes ...
> I'd rather use bigger disks and/or more units.

I see a use case, for an agency with several photographs, each with his own disk.

by the way if it's only for statistics, a sqlite script is not that difficult
to write, sql is pretty simple and example are available everywhere

jdd


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[Marina Ciatta]

Il 2014-09-20 18:48 Gilles Caulier ha scritto:

> Please read this report and especially the last comment from Marcel :
>
> https://bugs.kde.org/show_bug.cgi?id=191494#c29
>
> For more details, ask to Marcel in this file through bugzilla.
>
> Gilles

Thank you very much Gilles for the infos.
Emm, probably the discussion about thumbnails formats was flying a bit
too
high over my skull, but the last comments are clear, how to handle in
search
results images that can't be edited because absent.
So, a not implemented feature, perhaps a disabled (greyed out command)
edition.
Ok, so not a bug, just a wish for a future version :-)

Thanks again,
Marina


Il 2014-09-20 19:03 jdd ha scritto:

>> I wouldn't go that way, as I could be very complicate and confusing,
>> and
>> lead to mistakes ...
>> I'd rather use bigger disks and/or more units.
>
> I see a use case, for an agency with several photographs, each with his
> own
> disk.

This is exactly my use case. Not in a press agency context but only with
images collections, stored on several disks owned by several different
persons.
(Persons that kwon each other, friends, colleagues, students)

> by the way if it's only for statistics, a sqlite script is not that
> difficult
> to write, sql is pretty simple and example are available everywhere

Not for statistics, only search in available images (i.e. collections
that have
been scanned once, and disks returned to their owner).

(This is not a weird idea nor an alien usage, all books libraries work
that way.
In a library you can search the database with your own criteria,
keywords, topics,
authors, then get as results all books matching the criteria. And this
doesn't
imply they are all available at the moment. Some may be on shelves, some
others
may be outside, borrowed by other readers. The important fact is to know
they
exist and how to get access to them.)

Thanks anyway for your suggestions,
Marina


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