[Qgis-user] Drill-down forms with multiple selections option
Pedro VenĂ¢ncio
pedrongvenancio at gmail.com
Sat Nov 23 05:47:26 PST 2019
Hi all,
I'm building a form with two fields of "Value Relation Widgets", one
depending on the other.
This works really well as explained here https://youtu.be/ipezh4KXrgo by
Alessandro, but I would like that both fields have the multiple selections
option.
Here is a sample project:
https://cld.pt/dl/download/db1a1787-0adc-4633-a0c9-356c41f269eb/drilldown_multiple.zip
In that project, I have two shapefiles (one configured without and another
configured with 'Allow multiple selections') and two csv files (Value
Relation sources).
So, without multiple selections option, I simply use
"di" = current_value( 'DISTRITOS')
as filter expression.
This does not work with multiple selections, because this option saves the
multiple values between braces: {Value1,Value2,...}.
So, how could I use the filter here, to have the second field filtered by
the options selected in the first field?
Thank you very much!
Best regards,
Pedro VenĂ¢ncio
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