class Role < ActiveRecord::Base <\/div>
ROOT = \'root\'<\/div>
ADMIN = \'admin\'<\/div>
USER = \'user\'<\/div>
<\/div>
def <=> other<\/div>
roles = [Role::USER, Role::ADMIN, Role::ROOT]<\/div>
roles.index(name) <=> roles.index(other.name)<\/div>
end<\/div>
end<\/div>
<\/div>
...<\/div>
<\/div>
>> [ Role.admin, Role.root, Role.user ].max<\/div>
=> #<Role id: 1, name: "root"><\/div>
>> [ Role.user ].max<\/div>
=> #<Role id: 3, name: "user"><\/div>
>> [ Role.user, Role.admin ].max<\/div>
=> #<Role id: 2, name: "admin"><\/div>
>> [ Role.root, Role.admin ].max<\/div>
=> #<Role id: 1, name: "root"><\/div>
<\/div><\/pre><\/div>\n \n <\/div>\n\n