Fix layer definition datasource and provider in API

qgis-app/api/serializers.py

@@ -14,7 +14,7 @@
 from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as _
 from styles.file_handler import read_xml_style, validator as style_validator
-from layerdefinitions.file_handler import validator as layer_validator
+from layerdefinitions.file_handler import get_provider, get_url_datasource, validator as layer_validator
 import tempfile
 
 class ResourceBaseSerializer(serializers.ModelSerializer):
@@ -163,6 +163,9 @@ def validate(self, attrs):
 
                 with open(temp_file.name, 'rb') as qlr_file:
                     layer_validator(qlr_file)
+                    self.url_datasource = get_url_datasource(qlr_file)
+                    self.provider = get_provider(qlr_file)
+
 
         finally:
             import os

qgis-app/api/views.py

@@ -396,6 +396,12 @@ def post(self, request, *args, **kwargs):
             if hasattr(serializer, 'style_type'):
                 serializer.instance.style_type = serializer.style_type
                 serializer.instance.save()
+            if hasattr(serializer, 'url_datasource'):
+                serializer.instance.url_datasource = serializer.url_datasource
+                serializer.instance.save()
+            if hasattr(serializer, 'provider'):
+                serializer.instance.provider = serializer.provider
+                serializer.instance.save()
             return Response(serializer.data, status=status.HTTP_201_CREATED)
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)