KeyError Post DjangoRestFramework - django

Question

I'm new on Django Rest Framework and when I want to POST data I get a error: KeyError: 'id_area' I do not know what I'm doing wrong. Here's my code:
in my models.py
class Area(models.Model):
id_area = models.AutoField(primary_key=True)
APM = 'apm'
BUSINESS = 'business'
DESARROLLO = 'desarrollo'
SISTEMAS = 'sistemas'
ATENTUSIANOS_CHOICES = (
(APM, 'Apm'),
(BUSINESS, 'Business'),
(DESARROLLO, 'Desarrollo'),
(SISTEMAS, 'Sistemas'),
)
nombre = models.CharField(max_length=255, choices=ATENTUSIANOS_CHOICES)
class Meta:
verbose_name = 'Área'
verbose_name_plural = 'Áreas'
def __str__(self):
return self.nombre
class Atentusiano(models.Model):
id_atentusiano = models.AutoField(primary_key=True)
nombre = models.CharField(max_length=255, blank=False, null=False)
apellido = models.CharField(max_length=255, blank=False, null=False)
correo = models.CharField(max_length=255, blank=False, null=False, unique=True)
anexo = models.CharField(max_length=255, blank=True, null=True)
area = models.ForeignKey(Area, related_name='areas', on_delete=models.CASCADE)
class Meta:
verbose_name = 'Atentusiano'
verbose_name_plural = 'Atentusianos'
ordering = ['nombre']
def __str__(self):
return self.nombre + ' ' + self.apellido
in my serializers.py
class AreaSerializer(serializers.ModelSerializer):
areas = serializers.CharField(read_only=True)
class Meta:
model = Area
fields = ('id_area', 'nombre', 'areas')
class AtentusianoSerializer(serializers.ModelSerializer):
atentusianos = serializers.CharField(read_only=True)
area = serializers.CharField(source='area.nombre', read_only=True)
id_area = serializers.CharField(source='area.id_area')
class Meta:
model = Atentusiano
fields = ['id_atentusiano', 'nombre', 'apellido', 'correo', 'anexo', 'id_area', 'area', 'atentusianos']
def create(self, validated_data):
area_data = validated_data.pop('id_area')
area = models.Area.objects.create(**area_data)
atentusiano = models.Atentusiano.objects.create(area=area, **validated_data)
return atentusiano
And in my views.py
class AtentusianoView(viewsets.ModelViewSet):
queryset = Atentusiano.objects.all()
serializer_class = AtentusianoSerializer
class AreaView(viewsets.ModelViewSet):
queryset = Area.objects.all()
serializer_class = AreaSerializer
The problem is that when I want to Post data, for example:
{
"nombre": "name",
"apellido": "lastname",
"correo": "email#gmail.com",
"anexo": "1364",
"id_area": "1"
}
i got this error area_data = validated_data.pop('id_area')
KeyError: 'id_area'
I need help please

Answer 1

you should pop like this,
class AtentusianoSerializer(serializers.ModelSerializer):
.....
.....
class Meta:
model = Atentusiano
fields = ['id_atentusiano', 'nombre', 'apellido', 'correo', 'anexo', 'id_area', 'area', 'atentusianos']
def create(self, validated_data):
id_area = validated_data.pop('area')['id_area'] # here the correction
area = Area.objects.create(id_area=id_area) # an additional correction
atentusiano = Atentusiano.objects.create(area=area, **validated_data)
return atentusiano
EDIT: As id_area value, you are passing a string instead of an integer which will through another error. Also not,
area = models.Area.objects.create(**area_data)
it should be,
area = Area.objects.create(id_area=id_area)