[experiments][serializers] Fix error thrown from latest version of DRF

beat/web/experiments/serializers.py

@@ -59,6 +59,7 @@ class ExperimentSerializer(ShareableSerializer):
 
     class Meta:
         model = Experiment
+        fields = '__all__'
         default_fields = ShareableSerializer.Meta.default_fields + ['name', 'toolchain',
                                                                     'datasets', 'short_description',
                                                                     'creation_date', 'start_date', 'end_date',
@@ -148,6 +149,7 @@ class AnalyzerSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Block
+        fields = '__all__'
 
     def get_results(self, obj):
         results = {}
@@ -187,6 +189,7 @@ class BlockErrorSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Block
+        fields = '__all__'
 
 
 #----------------------------------------------------------
@@ -211,6 +214,7 @@ class ExperimentResultsSerializer(ShareableSerializer):
 
     class Meta(ShareableSerializer.Meta):
         model = Experiment
+        fields = '__all__'
         default_fields = ['started', 'done', 'failed', 'status', 'blocks_status',
                           'results', 'attestation', 'declaration',
                           'errors', 'sharing', 'accessibility',