xos/synchronizer/model_policies/model_policy_Controller.py

from collections import defaultdict
from synchronizers.new_base.modelaccessor import *

def handle(controller):
    # relations for all sites
    ctrls_by_site = defaultdict(list)
    ctrl_sites = ControllerSite.objects.all()
    for ctrl_site in ctrl_sites:
        ctrls_by_site[ctrl_site.site.id].append(ctrl_site.controller.id)

    sites = Site.objects.all()
    for site in sites:
        if site.id not in ctrls_by_site or controller.id not in ctrls_by_site[site.id]:
            controller_site = ControllerSite(controller=controller, site=site)
            controller_site.save()

    # relations for all slices
    ctrls_by_slice = defaultdict(list)
    ctrl_slices = ControllerSlice.objects.all()
    for ctrl_slice in ctrl_slices:
        ctrls_by_slice[ctrl_slice.slice.id].append(ctrl_slice.controller.id)

    slices = Slice.objects.all()
    for slice in slices:
        if slice.id not in ctrls_by_slice or controller.id not in ctrls_by_slice[slice.id]:
            controller_slice = ControllerSlice(controller=controller, slice=slice)
            controller_slice.save()

    # relations for all users
    ctrls_by_user = defaultdict(list)
    ctrl_users = ControllerUser.objects.all()
    for ctrl_user in ctrl_users:
        ctrls_by_user[ctrl_user.user.id].append(ctrl_user.controller.id)

    users = User.objects.all()
    for user in users:
        if user.id not in ctrls_by_user or controller.id not in ctrls_by_user[user.id]:
            controller_user = ControllerUser(controller=controller, user=user)
            controller_user.save()

    # relations for all networks
    ctrls_by_network = defaultdict(list)
    ctrl_networks = ControllerNetwork.objects.all()
    for ctrl_network in ctrl_networks:
        ctrls_by_network[ctrl_network.network.id].append(ctrl_network.controller.id)

    networks = Network.objects.all()
    for network in networks:
        if network.id not in ctrls_by_network or controller.id not in ctrls_by_network[network.id]:
            controller_network = ControllerNetwork(controller=controller, network=network)
            if network.subnet and network.subnet.strip():
                controller_network.subnet = network.subnet.strip()
            controller_network.save()

    # relations for all images
    ctrls_by_image = defaultdict(list)
    ctrl_images = ControllerImages.objects.all()
    for ctrl_image in ctrl_images:
        ctrls_by_image[ctrl_image.image.id].append(ctrl_image.controller.id)

    images = Image.objects.all()
    for image in images:
        if image.id not in ctrls_by_image or controller.id not in ctrls_by_image[image.id]:
            controller_image = ControllerImages(controller=controller, image=image)
            controller_image.save()