from rest_framework import serializers

from iconolab.models import Annotation

class AnnotationSerializer(serializers.ModelSerializer):

	tags = serializers.HyperlinkedRelatedField(many=True, read_only=True, view_name='get')

	class Meta:

		model = Annotation

		fields = ('id', 'title', 'description', 'fragment', 'tags')

	def create(self, validated_data):

		"""

		Create a new Annotation

		"""

		return Annotation.create(**validated_data)

	def update(self, instance, validated_data):

		instance.title = validated_data.get('title', instance.title)

		instance.description = validated_data.get('description', instance.description)

		instance.fragment = validated_data.get('fragment', instance.fragment)

		instance.save()

		return instance