pslockout/authserver/authserver/api/serializers.py

from django.contrib.auth.models import User
from rest_framework import serializers

from . import models

class CategorySerializer(serializers.HyperlinkedModelSerializer):
    url = serializers.HyperlinkedIdentityField(view_name='category-detail', lookup_field='slug')

    class Meta:
        model = models.Category
        fields = '__all__'

class ToolSerializer(serializers.HyperlinkedModelSerializer):
    url = serializers.HyperlinkedIdentityField(view_name='tool-detail', lookup_field='slug')
    category = serializers.HyperlinkedRelatedField(
            view_name='category-detail',
            lookup_field='slug',
            queryset=models.Category.objects.all()
        )

    class Meta:
        model = models.Tool
        fields = '__all__'

class ToolDataSerializer(serializers.HyperlinkedModelSerializer):
    url = serializers.HyperlinkedIdentityField(view_name='category-detail', lookup_field='slug')
    tools = ToolSerializer(many=True)

    class Meta:
        model = models.Category
        fields = '__all__'

class ProfileSerializer(serializers.HyperlinkedModelSerializer):
    user = serializers.StringRelatedField()
    cards = serializers.StringRelatedField(many=True, read_only=True)
    authorized_tools = serializers.SlugRelatedField(
            many=True,
            slug_field='slug',
            queryset=models.Tool.objects.all()
        )

    class Meta:
        model = models.Profile
        fields = '__all__'

class UserSerializer(serializers.ModelSerializer):
    profile = ProfileSerializer(read_only=True)

    class Meta:
        model = User
        fields = ('username', 'profile')
        depth = 1