Respaldo anes de irme

Sistemas/serializers.py

@@ -5,8 +5,7 @@ from Clientes.models import Clientes
 
 class SistemaPrimaryKeyRelatedField(serializers.PrimaryKeyRelatedField):
     def to_internal_value(self,data):
-        try:
-            print(Sistema.objects.get(nombre_sistema=data))
+        try:            
             return Sistema.objects.get(nombre_sistema=data)
         except Sistema.DoesNotExist:
             raise serializers.ValidationError("Sistema no existe")
@@ -21,18 +20,28 @@ class ClientPrimaryKeyRelatedField(serializers.PrimaryKeyRelatedField):
 class DeviceSerializer(serializers.ModelSerializer):
     client = ClientPrimaryKeyRelatedField(queryset=Clientes.objects.all())    
     sistema = SistemaPrimaryKeyRelatedField(queryset=Sistema.objects.all())
+    
+    #this read_only fields not are required to be updated in the serializer.
+    #however in the model are required in other instantiation like queries, forms, are required to add it    
     token = serializers.CharField(read_only=True)
+    macAddress = serializers.CharField(read_only=True)
     class Meta:
         model =Device
-        fields = ('client','sistema','device_name','device_os', 'ip_address','token')
+        fields = ('client','sistema','device_name','device_os', 'ip_address','token', 'macAddress')
+
+    #this assign the masAddress value from 
+    #the request context passed throught argument in the view to the serializer
+    #given that the macAddres field are read_Only in the beggining of this serialazer
+    #we need passing the post data to the creation instance before commited to the DB
+    def create(self, validated_data):        
+        validated_data['macAddress']= self.context['request'].data.get('macAddress')
+        return super().create(validated_data)
 
-    
     def validate(self, data):
         sistema = data.get('sistema', None)
         client = data.get('client', None)
         try:
-            sistemaxCli =  sistemas_por_cliente.objects.get(id_sistema=sistema,cliente=client)
-            print('validate spc', sistemaxCli)
+            sistemaxCli =  sistemas_por_cliente.objects.get(id_sistema=sistema,cliente=client)            
         except sistemas_por_cliente.DoesNotExist:
             raise serializers.ValidationError('No existe licencia para este sistmea y/o cliente')                
         if sistemaxCli.num_licencias <= Device.objects.filter(sistema=sistemaxCli.id_sistema).count():