Bug report #21735: WMS Client: GetFeatureInfo in JSON format doesn't display numeric attribute values - QGIS Application - QGIS Issue Tracking

Bug report #21735

WMS Client: GetFeatureInfo in JSON format doesn't display numeric attribute values

Added by Andreas Neumann about 5 years ago. Updated almost 5 years ago.

Status:	Closed
Priority:	Normal
Assignee:	Alessandro Pasotti
Category:	Web Services clients/WMS
Affected QGIS version:	3.7(master)	Regression?:	No
Operating System:	All	Easy fix?:	No
Pull Request or Patch supplied:	Yes	Resolution:	fixed/implemented
Crashes QGIS or corrupts data:	No	Copied to github as #:	29550

Description

When doing a GetFeatureInfo request on the service

https://services.geo.zg.ch/ows/Gebaeudebrueter

and choosing "feature" (application/json) as format, all numeric values are not shown. Potentially, other data types might also be affected (haven't tested boolean or other data types).

Click on a point feature and switch between the formats. Numeric attribute values (e.g. "Anzahlnistkästen", "bfs_nr", "Postleitzahl", etc.) are displayed fine in text and html format, but not when choosing JSON/Geojson as format.

Note that in HTML and Text format, numeric values are displayed, correctly, but in JSON format (Format=Feature) all numeric values are omitted.

See screenshots attached.

Here is the corresponding manual request:

https://services.geo.zg.ch/ows/Gebaeudebrueter?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetFeatureInfo&BBOX=2682488,1222987,2683185,1223726&CRS=EPSG:2056&WIDTH=899&HEIGHT=952&LAYERS=zg.geaeudebrueter&STYLES=&FORMAT=image/png&QUERY_LAYERS=zg.geaeudebrueter&INFO_FORMAT=application/json&I=312&J=362&FEATURE_COUNT=10

GetFeatureInfo_text.png - GeFeatureInfo result as text/plain (49.8 KB) Andreas Neumann, 2019-04-02 02:19 PM

GetFeatureInfo_json.png - GetFeatureInfo result as application/json (57.9 KB) Andreas Neumann, 2019-04-02 02:19 PM