Fix retrieval of file path and layer name

GPKG layers loaded as results from processing algorithms seem to just
have their path as source, while GPKG layers loaded from files manually
have the |layername= in the source, even if filename==layername.

helpers.py

@@ -1,3 +1,4 @@
+import os
 import re
 import importlib
 from typing import Any, List, Iterable
@@ -87,10 +88,20 @@ def getLayerGeomName(layer: QgsVectorLayer):
 
 
 def getLayerGeomNameOgr(layer: QgsVectorLayer):
-    source = layer.source().split('|')
-    gpkg = source[0]
-    lname = source[1].split('=')[1]
-    conn = ogr.Open(gpkg)
+    source = layer.source()
+
+    # layer source *might* include pipe character and then the layername
+    # but when created from a processing algorithm, it might not
+    if "|" in source:
+        split_source = source.split('|')
+        filepath = split_source[0]
+        lname = split_source[1].split('=')[1]
+    else:
+        # assuming we simply got a full path to the file and nothing else
+        filepath = layer.source()
+        lname = os.path.splitext(os.path.basename(filepath))[0]
+
+    conn = ogr.Open(filepath)
     ogrLayer = conn.GetLayerByName(lname)
     columnName = ogrLayer.GetGeometryColumn()
     ogrLayer = None

metadata.txt

@@ -3,7 +3,7 @@ name=Räumlicher Filter
 qgisMinimumVersion=3.22
 description=Spatial filters for PostGIS, GeoPackage and Spatialite layers
 description[de]=Räumliche Filter für PostGIS-, GeoPackage- und Spatialite-Layer
-version=1.0
+version=1.1
 author=WhereGroup GmbH (Peter Gipper, Mathias Gröbe, Johannes Kröger)
 email=info@wheregroup.com