Serializers sin modelos

Modelo Original

models.py

class Person(TimeStampedModel):
    """  Modelo para registrar personas de una agenda  """

    full_name = models.CharField(
        'Nombres', 
        max_length=50,
    )
    job = models.CharField(
        'Trabajo', 
        max_length=30,
        blank=True
    )
    email = models.EmailField(
        blank=True, 
        null=True
    )
    phone = models.CharField(
        'telefono',
        max_length=15,
        blank=True,
    )
    hobbies = models.ManyToManyField(Hobby)

    class Meta:
        verbose_name = 'Persona'
        verbose_name_plural = 'Personas'
    
    def __str__(self):
        return self.full_name

Construimos un modelo en el serializer

serializer.py

class PersonaSerializer(serializers.Serializer):
    id = serializers.IntegerField()
    full_name = serializers.CharField()
    job = serializers.CharField()
    email = serializers.CharField()
    phone = serializers.CharField()

views.py

from .models import Person,Reunion
#
from .serializer import (

    PersonSerializer,
    PersonaSerializer,
)


class PersonApiLista(ListAPIView):

    # serializer_class= PersonaSerializer
    serializer_class= PersonaSerializer

    def get_queryset(self):
        return Person.objects.all()

urls.py

    path(
        'api/personas/',
        views.PersonApiLista.as_view(),
        name=''
    ),

Añadir un aartirbuto que no este presente en el modelo

seriallizers.py

class PersonaSerializer(serializers.Serializer):
    id = serializers.IntegerField()
    full_name = serializers.CharField()
    job = serializers.CharField()
    email = serializers.CharField()
    phone = serializers.CharField()
    activo = serializers.BooleanField(default=False)  #required=False

-----------------------Portafolio Apartado EXTRA----------------------------------

serializers.py

class ProjectSerializer(serializers.ModelSerializer):
    class Meta:
        model=Project
        fields=(
            'id',
            'title',
            'description',
            'image',
            'tags',
            'category',
        )

class TagSerializer(serializers.ModelSerializer):
    class Meta:
        model = Tag
        fields = ['id', 'name', 'active', 'created', 'updated']

class Project2Serializer(serializers.Serializer):
    id = serializers.IntegerField()
    title = serializers.CharField()
    description = serializers.CharField()
    image = serializers.CharField()
    tags = TagSerializer(many=True)  # Utilizar el serializador de Tag
    category = serializers.CharField()
    status = serializers.BooleanField(required=False)  #default=False

views.py

class Project2ApiLista(ListAPIView):
    # serializer_class= PersonaSerializer
    serializer_class= Project2Serializer

    def get_queryset(self):
        return Project.objects.all()

urls.py

    path(
        'api/proyectos2/',
        views.Project2ApiLista.as_view(),
        name=''
    ),