Hi, to allow for drill-down forms, a few months ago, I've created a modified value relation widget with a companion form function that allow to implement dynamic filtering (or altering) of fields in a form.
It can be easily ported in the core (it's basically a clone of the existing value relation widget). The widget is available as a python plugin. http://plugins.qgis.org/plugins/FormAwareValueRelationWidget/ More information here: http://www.itopen.it/a-new-qgis-plugin-allows-dynamic-filtering-of-values-in-forms The main question is if there is any interest in porting this widget into the core, then if this should be 1. a replacement of the existing value relation widget 2. an optional feature of the existing value relation widget 3. a new widget I would like to hear your thoughts about this. -- Alessandro Pasotti w3: www.itopen.it
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