[Refactor] Move autocomplete methods to an AutocompleteController
If the Autocomplete methods are moved to a common AutocompleteController, it would be easier to share them with different parts of Redmine. This would make adding things like an issue autocomplete for the Issue Relations trivial.
#7 Updated by Etienne Massip about 2 years ago
I don't think there should be an autocomplete dedicated controller with methods concerning issues, others categories, users, etc.
I think these autocomplete methods shoud stay in issue_controller, etc. and may use an autocomplete helper tightly linked to the application_helper.