[digiKam-users] Advanced search and hierarchical tags

[Olivier Croquette]

On 28.02.21 17:02, Maik Qualmann wrote:
> The advanced search cannot do this. But in principle it is the same if you
> select the tag "Car" in the left sidebar and have activated [x] Include Tag
> Sub-Tree under Menu-> View.

OK, this is indeed a way to do the positive search, but it doesn't work 
for the negative search.

The negative search is for instance required in the "Events" use case. I 
need to find the items without a tag underneath "Events" so that I can 
add it.

A workaround would be to use the "Include Tag Sub-Tree" to show all 
items with an event, add the "Events" tag explicitly to them, use the 
Advanced search to find items without the "Events" tag, do my work, and 
then remove the "Events" tag again. This would probably work, I need to 
try it out, but it's very cumbersome and will change the metadata most 
of the files twice. Or I let the "Events" tag on them, but it is not 
very nice.

Do you think the "subtree" capability would be a good addition to the 
"Advanced search"? I could write a feature request, or even have a look 
how to implement it, even though I am not sure if this the best way to 
start contributing to Digikam.

Olivier