from authentication.models import User
from rest_framework.serializers import ModelSerializer, ValidationError


class UserSerializer(ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

    def validate(self, data):
        req = User.objects.filter(email=data['email'])
        if req.count() != 0:
            raise ValidationError("Cette adresse email est déjà utilisée.")

        return super().validate(data)