user_url_constrainer.rb « constraints « lib - gitlab.com/gitlab-org/gitlab-foss.git - Unnamed repository; edit this file 'description' to name the repository.
require 'constraints/namespace_url_constrainer'
class UserUrlConstrainer < NamespaceUrlConstrainer
def find_resource(id)
User.find_by('lower(username) = ?', id.downcase)
end
end