gistfile1.txt

class Book(models.Model):
	name = models.CharField(max_length= 200)
	author = models.CharField(max_length=100)
	publisher = models.CharField (max_length = 200)

class Chapter (models.Model):
	book = models.ForeignKey(Book, related_name ='chapter')
	title = models.CharField(max_length=300)

class Section (models.Model):
	chapter = models.ForeignKey(Chapter, related_name='section')
	body = models.TextField()
	 


class BookSerializer(serializers.ModelSerializer):
    chapter = serializers.SlugRelatedField(
        many=True,
        read_only=True,
        slug_field='title'
     )

    class Meta:
        model = Book
        fields = ('name', 'author', 'chapter')

class ChapterSerializer(serializers.ModelSerializer):
    section = serializers.HyperlinkedRelatedField(
        many=True,
        read_only=True,
        view_name='section-detail'
    )

    class Meta:
        model = Chapter
        fields = ('body', 'section')