update termination of cable in customs scripts

[vaas299]

Hi everyone,

I would like to copy the cables and create new ones that will be on other terminations with customs scripts. For that I make this script :

---

from django.utils.text import slugify
from extras.scripts import *

from dcim.choices import DeviceStatusChoices, SiteStatusChoices, RackStatusChoices, LocationStatusChoices
from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site, Rack, Location, Interface, Cable
from extras.scripts import *

class test(Script):

...

def run(self, data, commit):

    # PARTIE CABLE
    for cable in Cable.objects.all():

        if "FR01" in cable.a_terminations[0].device.name : 
            
            ret = cable.a_terminations[0].device.name.replace('FR01','FR02')
            
            for device in Device.objects.filter(site=siteToUpdate):

                if ret1 == device.name :
                    
                    for interface in device.interfaces.all():

                        if interface.name == cable.a_terminations[0].name:

                            cable.a_terminations[0].id = interface.id 
        
        allCable.append(cable)


    for y in allCable:

        cableSet = Cable(
            
            label = y.label,
            type = y.type,
            status = y.status,
            tenant = y.tenant,
            description = y.description,
            color = y.color,
            length = y.length,
            length_unit = y.length_unit,
            a_terminations = y.a_terminations,
            comments = y.comments,
            tags = y.tags
            
        )


        cableSet.full_clean()
        cableSet.save()
        self.log_success(f"Created new device : {cableSet}")    

---

However when I change the id of interface of a_termination[0], termination keeps its old ID.
Please does anyone know how to change the terminations of a cable ?
Thanks

Best regard