Bug report #21089
[processing] SAGA algorithms cannot produce non-shp output
| Status: | Closed | ||
|---|---|---|---|
| Priority: | High | ||
| Assignee: |  Victor Olaya | ||
| Category: | Processing/SAGA | ||
| Affected QGIS version: | 3.5(master) | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 28907 |
Description
Looks like the mechanism that was implemented in 2.x, which allowed to handle any output format (Processing called saga to create a SHP, and then transparently converted that to the desired format under the hood) is gone in the current implementation.
If that's on purpose, i guess it whould be documented, and SAGA algorithms should not run in that case, showing a warning message. If it's not intended, it's an important regression.
Associated revisions
[processing] do not allow using unsupported file formats
Show warning message if user selects incompatible output file format
fixes #21089
[processing] do not allow using unsupported file formats
Show warning message if user selects incompatible output file format
fixes #21089
(cherry picked from commit 13bff9620c39e110852f4623e3ad9c3ec5ba260c)
[processing] do not allow using unsupported file formats
Show warning message if user selects incompatible output file format
fixes #21089
(cherry picked from commit 13bff9620c39e110852f4623e3ad9c3ec5ba260c)
History
#1
Updated by Victor Olaya almost 6 years ago
Looks like it is not implemented. The supportedOutputVectorLayerExtensions method is not being used (just for the extensions in the file diaalog, but not for any other thing).
The logic for all this was here in 2.x:
https://github.com/qgis/QGIS/blob/release-2_18/python/plugins/processing/core/GeoAlgorithm.py#L271
I will add it to the SAGA algorithm, and eventually it can be moved upstream.
#2
Updated by Alexander Bruy almost 6 years ago
If I'm not wrong this was intentional change. SAGA outputs left in its native formats to avoid any possible data loss during automated conversion, this especially critical for rasters.
#3
Updated by Victor Olaya almost 6 years ago
Ah, cool. Then I guess that what we need is some warning message. Or, at least, if the file extension is not correct, fix it on-the-fly so the algorithm doesnt fail
#4
Updated by Victor Olaya almost 6 years ago
- % Done changed from 0 to 100
- Status changed from Open to Closed
Applied in changeset qgis|13bff9620c39e110852f4623e3ad9c3ec5ba260c.