I have a hosts class with an ip_addresses class which has a host_id attribute. All hosts are associated with a data_center, and all ip_addresses are associated with a network. Networks have a standard IP network definition (192.168.59.0/24) etc. When a user changes that network definition, I need to go through all ip_addresses in the network and change them to agree with the new network definition. For example, if the network is defined as 192.168.59.0/24, and the user changes it to 10.168.59.0/24 in the networks form, I need to change all the ip_addresses in that network to match the new scheme. So I need to know when the network changes. How do I do this? Like, is there a way to add code to the function that sets the network definition?
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