Class AnnotationSerializer

label_studio/data_export/serializers.py:27–62

class AnnotationSerializer(FlexFieldsModelSerializer):
    completed_by = serializers.PrimaryKeyRelatedField(read_only=True)
    result = serializers.SerializerMethodField()
    state = FSMStateField(read_only=True)  # FSM state for annotations

    class Meta:
        model = Annotation
        fields = '__all__'
        expandable_fields = {'completed_by': (CompletedBySerializer,)}

    def to_representation(self, instance):
        """Override to conditionally exclude FSM state field when feature flags are disabled."""
        from core.current_request import CurrentContext
        from core.feature_flags import flag_set

        ret = super().to_representation(instance)

        # Remove state field from output if either feature flag is disabled
        user = CurrentContext.get_user()
        if not (
            flag_set('fflag_feat_fit_568_finite_state_management', user=user)
            and flag_set('fflag_feat_fit_710_fsm_state_fields', user=user)
        ):
            ret.pop('state', None)

        return ret

    def get_result(self, obj):
        # run frames extraction on param, result and result type
        if (
            obj.result
            and self.context.get('interpolate_key_frames', False)
            and is_video_object_tracking(parsed_config=obj.project.get_parsed_config())
        ):
            return extract_key_frames(obj.result)
        return obj.result


class BaseExportDataSerializer(FlexFieldsModelSerializer):