from rest_framework import serializers
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from users.serializers import UserSerializer
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class TriggeredBySerializer(UserSerializer):
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class Meta(UserSerializer.Meta):
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fields = ['id', 'email']
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class StateModelSerializer(serializers.Serializer):
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"""
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Serializer for FSM state models.
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Uses Serializer instead of ModelSerializer because BaseState is abstract.
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Works with any concrete state model that inherits from BaseState.
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"""
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id = serializers.UUIDField(read_only=True)
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state = serializers.CharField(read_only=True)
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previous_state = serializers.CharField(read_only=True, allow_null=True)
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transition_name = serializers.CharField(read_only=True, allow_null=True)
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triggered_by = TriggeredBySerializer(read_only=True, allow_null=True)
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reason = serializers.CharField(read_only=True, allow_null=True)
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created_at = serializers.DateTimeField(read_only=True)
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context_data = serializers.JSONField(read_only=True)
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def to_representation(self, instance):
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"""
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Override to exclude triggered_by field for annotators.
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"""
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data = super().to_representation(instance)
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request = self.context.get('request')
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if request and hasattr(request, 'user'):
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user = request.user
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if getattr(user, 'is_annotator', False):
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data.pop('triggered_by', None)
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return data
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class FSMTransitionExecuteRequestSerializer(serializers.Serializer):
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"""
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Request body serializer for executing a manual FSM transition.
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"""
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transition_name = serializers.CharField()
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transition_data = serializers.DictField(required=False, allow_null=True)
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class FSMTransitionExecuteResponseSerializer(serializers.Serializer):
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"""
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Response serializer for manual FSM transition execution.
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"""
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success = serializers.BooleanField(read_only=True)
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new_state = serializers.CharField(read_only=True, allow_null=True)
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state_record = StateModelSerializer(read_only=True, allow_null=True)
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