How to change lookup field in Model.viewset to other unique parameter in Django Rest Framework?

Question

I am using Modelviewset in django rest framework. I want to change lookup field to email(unique) instead of id. I have tried adding lookup_field = 'email' inside my Schema viewset but it is not working. This is what i am getting { "detail": "Not found." } How do I resolve this.

my Views.py:

class SchemaViewSet(mixins.CreateModelMixin, mixins.ListModelMixin, mixins.RetrieveModelMixin, viewsets.GenericViewSet):

    queryset = models.Schema.objects.all()
    serializer_class = serializers.SchemaSerializer
    lookup_field = 'email'

my models.py:

class Schema(models.Model):
    """Database model for Schema """

    name= models.TextField()
    version = models.TextField()
    email = models.EmailField(unique = True )


    def __str__(self):
        return self.email

my serializers.py:

class SchemaSerializer(serializers.ModelSerializer):
    """Serializes Schema"""

    class Meta:
        model = models.Schema
        fields = (  'id', 'name', 'version', 'email')

Answer 1

Update your code as follow:

class SchemaSerializer(serializers.ModelSerializer):
"""Serializes Schema"""

class Meta:
    model = models.Schema
    fields = ("id", "email")
    lookup_field = "email"


class SchemaViewSet(viewsets.ModelViewSet):
    queryset = models.Schema.objects.all()
    serializer_class = serializers.SchemaSerializer
    lookup_field = "email"
    lookup_value_regex = "[^/]+"