In the previous question, this is the link:
QGIS automatic fill of the attribute table by expression
I got help from a colleague and solved the problem of automatic fill of attributes and the code
clamp(
1,
length(regexp_replace(Naziv,'[^-]',''))+1,
3
)
does the job perfectly if I use it in the field calculator.
When I entered the code in the form attributes and set it to be the default value -> Preview shows '1' but fills the attribute table with the value 'NULL'.
And to make it even more interesting, if I record a line with Mergin Maps in that project and synchronize the data, the table is correctly filled with the value it should be.
Red
? What is the data source (Geopacke, Shapefile, other)? I also see you have a Form layout, maybe that does interfere? Could you share your project with (dummy) data?