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QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)
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Value relation widget filter expression should have access to parent table attributes. #18295

Open qgib opened 10 years ago

qgib commented 10 years ago

Author Name: cgsbob - (cgsbob -) Original Redmine Issue: 9745

Redmine category:unknown

I was thinking that if the Value relation widget filter expression should have access to parent table attributes. So, if I have a "county" attribute in the parent table, I can create an expression for the Value relation widget that will filter all cities in that county. If the "county" attribute is null, I will get all cities.

qgib commented 10 years ago

Author Name: Matthias Kuhn (@m-kuhn)

On a related note: My mid-term goal are a) to move the "Value Relation" widget to make use of the information defined in the "relations" b) to include support for relations in expressions

so once that's done this should be possible

qgib commented 7 years ago

Author Name: Giovanni Manghi (@gioman)

qgib commented 7 years ago

Author Name: Jürgen Fischer (@jef-n)