fix hostname error

[kbrock]

this fixes an issue with:

• Disable ip address fields when dhcp is selected #9063

Reproducer:

• http://localhost:3000/vm_infra/explorer#/
• choose a vm
• Lifecycle > clone a vm

Not sure if this needs to handle hostname and/or linux_host_name or the name was wrong.

It calls URL http://localhost:3000/vm_infra/prov_field_changed/new

Data undefined method `[]=' for nil:NilClass [vm_infra/prov_field_changed]

manageiq-ui-classic/app/controllers/application_controller/miq_request_methods.rb:42:in `prov_field_changed'

It also causes another issue on other pages:

all_dialogs[:customize][:fields][:hostname][:read_only] = true
                                           ^^^^^^^^^^^^^^

manageiq-ui-classic/app/controllers/application_controller/miq_request_methods.rb:42:in `prov_field_changed'

[Fryguy]

@GilbertCherrie Please review.

[GilbertCherrie]

@kbrock The provision instance page uses hostname (#9063). It seems that the clone page uses linux_host_name. Would you be able to change this pr so that it can handle both?

[miq-bot]

Checked commit kbrock@ff79958 with ruby 2.7.8, rubocop 1.56.3, haml-lint 0.51.0, and yamllint
1 file checked, 0 offenses detected
Everything looks fine. ⭐

[kbrock]

update:

• supporting hostname and linux_host_name parameters

tested with clone_vm

@GilbertCherrie is this what you had in mind?

[GilbertCherrie]

Yeah this looks good.