QGIS action for inserting text in field by hotlink

Question

I hope to make a simple action in QGIS, where the field in my layer column "Process" can change from "NULL" to "Finished". I use hotlink to click on the polygon in the layer, where I want the action to be.

I tried to do use type Generic and

[%Process%]=substr('Finished',0,10)

but this did not work.

I hope somebody can help me.

Answer 1

If you change the Type from Generic to Python, you could use the following instead:

layer = qgis.utils.iface.activeLayer()
layer.startEditing()
idx = layer.fieldNameIndex('Process')
layer.changeAttributeValue([% $id %], idx, 'Finished')
layer.commitChanges()

Before you run your action, you will need to select it from the Layers Panel

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Example:

1. Setting up the action:

   

2. Running action from Identify Features tool by clicking on it:

   

3. Result - value changed from Processing to Finished:

   

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Also tested successfully with Hotlink.