Refactor update creation api

This merge request does the following:

• Raise DRF errors rather than returning response to take advantage of the DRF exception handling mechanism
• Create serialisers for PUT request to simplify the code
• Improve validation checks in several places
• Fixes several issues in DRF infrastructure uses
• Fixes JSON fields handling
• Remove routes that do no fully qualify objects
• Implement a custom DRF exception handler that will allow to log errors
• Improve testing
• Improve permission management

beat/web/algorithms/serializers.py

@@ -32,7 +32,7 @@ import beat.core.algorithm
 from rest_framework import serializers
 from operator import itemgetter
 
-from ..code.serializers import CodeSerializer, CodeCreationSerializer
+from ..code.serializers import CodeSerializer, CodeCreationSerializer, CodeModSerializer
 from ..libraries.serializers import LibraryReferenceSerializer
 from ..dataformats.serializers import ReferencedDataFormatSerializer
 from ..attestations.serializers import AttestationSerializer
@@ -52,6 +52,12 @@ class AlgorithmCreationSerializer(CodeCreationSerializer):
         beat_core_class = beat.core.algorithm.Algorithm
 
 
+class AlgorithmModSerializer(CodeModSerializer):
+    class Meta(CodeModSerializer.Meta):
+        model = Algorithm
+        beat_core_class = beat.core.algorithm.Algorithm
+
+
 # ----------------------------------------------------------