Bug report #17421
processing: adding refactor fields alg into a model throws an error
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Nyall Dawson | ||
| Category: | Processing/Core | ||
| Affected QGIS version: | master | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | fixed/implemented |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 25318 |
Description
When trying to add refactor fields to a model, the following error is thrown at the user:
An error has occurred while executing Python code:
processing.gui.wrappers.InvalidParameterValue
Traceback (most recent call last):
File "/home/webmaster/apps/share/qgis/python/plugins/processing/modeler/ModelerDialog.py", line 584, in addAlgorithm
self._addAlgorithm(alg)
File "/home/webmaster/apps/share/qgis/python/plugins/processing/modeler/ModelerDialog.py", line 593, in _addAlgorithm
dlg = ModelerParametersDialog(alg, self.model)
File "/home/webmaster/apps/share/qgis/python/plugins/processing/modeler/ModelerParametersDialog.py", line 77, in __init__
self.setupUi()
File "/home/webmaster/apps/share/qgis/python/plugins/processing/modeler/ModelerParametersDialog.py", line 206, in setupUi
wrapper.postInitialize(list(self.wrappers.values()))
File "/home/webmaster/apps/share/qgis/python/plugins/processing/algs/qgis/ui/FieldsMappingPanel.py", line 480, in postInitialize
self.setLayer(wrapper.value())
File "/home/webmaster/apps/share/qgis/python/plugins/processing/gui/wrappers.py", line 1013, in value
return self.comboValue(validator, combobox=self.combo)
File "/home/webmaster/apps/share/qgis/python/plugins/processing/gui/wrappers.py", line 170, in comboValue
raise InvalidParameterValue()
processing.gui.wrappers.InvalidParameterValue
Associated revisions
[processing] fix error when adding refactor fields alg in empty model
(fixes #17421)
History
#1
Updated by Giovanni Manghi about 7 years ago
- Status changed from Open to Feedback
I cna't confirm this on master/osgeo4w. Anyway I have seen this (once) when trying to edit the refactor field alg already added to a model
Traceback (most recent call last):
File "C:/OSGEO4~1/apps/qgis-dev/./python/plugins\processing\algs\qgis\ui\FieldsMappingPanel.py", line 144, in rowCount
return self._mapping.__len__()
AttributeError: 'NoneType' object has no attribute '__len__'
#2
Updated by Andreas Neumann almost 7 years ago
@Matthieu - I just tested with a recent master and it seems to work ok. I have other issues with expression context - Matthias is working on it - but other than that I can run a model with a "Feature Source" and connect it to the "Refactor Fields" algorithm.
#3
Updated by Mathieu Pellerin - nIRV almost 7 years ago
- Assignee changed from Victor Olaya to Nyall Dawson
- Status changed from Feedback to Open
Sorry, I should have mentioned that the error occurs when the algorithm is added in an empty modeler (i.e. no feature source / vector layer input yet)
Steps to reproduce- Create a new model
- Add the refactor fields algorithm
- You'll get thrown an error stack
#4
Updated by Mathieu Pellerin - nIRV almost 7 years ago
- % Done changed from 0 to 100
- Status changed from Open to Closed
Applied in changeset qgis|97f749e6b41338da0e1ee508e2634f5760be966c.
#5
Updated by Giovanni Manghi almost 7 years ago
- Resolution set to fixed/implemented