Bug report #18301

Processing tools don't ask for input layer when choosing directly a multi layer datasource

Added by Tobias Wendorff about 2 years ago. Updated over 1 year ago.

Status:Open
Priority:Normal
Assignee:-
Category:Processing/Core
Affected QGIS version:3.4.0 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:26192

Description

When loading a GeoPackage as an input for processing (direct loading without loading it in QGIS), the tool doesn't ask which layer to use. Tools like intersect, buffer don't work and you can't select the field of a layer.

History

#1 Updated by Tobias Wendorff over 1 year ago

  • Assignee deleted (Victor Olaya)

This is still a problem. It seems like you can't select a layer...

#2 Updated by Giovanni Manghi over 1 year ago

  • Affected QGIS version changed from 3.0.0 to 3.3(master)
  • Subject changed from QGIS3: tools don't ask for a layer (GPKG) to Processing tools don't ask for a layer (GPKG)
  • Category changed from Processing/QGIS to Processing/Core

#3 Updated by Andrea Giudiceandrea over 1 year ago

Confirmed also for SQLite and FileGDB (maybe others) multilayer containers.

In processing algorithms dialog window it is not possible to properly select a layer ("Select file" in the algorithm dialog window) from GPKG, SQLite, FileGDB (maybe others) multilayer containers as input layer if it is not already present in the map.

It is only possible to select the GPKG / SQLite / FileGDB file but not to specify which of the layer contained in it must be used as input layer. In this case, only the layer with layerid=0 is always used by the processing algorithm.

#4 Updated by Andrea Giudiceandrea over 1 year ago

Confirmed on 3.4.0

#5 Updated by Giovanni Manghi over 1 year ago

  • Affected QGIS version changed from 3.3(master) to 3.4.0

#6 Updated by Tobias Wendorff over 1 year ago

Andrea Giudiceandrea wrote:

Confirmed on 3.4.0

And on 3.5-dev, too. Actually, it's not only GPKG, really all others with multilayers, too: GeoJSON, OSM etc.
At least there should be a warning that only the first (random?) layer gets used.

#7 Updated by Giovanni Manghi over 1 year ago

  • Subject changed from Processing tools don't ask for a layer (GPKG) to Processing tools don't ask for input layer when choosing directly a multi layer datasource

Tobias Wendorff wrote:

Andrea Giudiceandrea wrote:

Confirmed on 3.4.0

And on 3.5-dev, too.

not surprising given the age of 3.4

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