sferik / rails_admin / 2779

94%

master: 96%

Pull #3210

travis-ci

Fix the case where username is nil, not whodunnit

I encounter the problem where paper_trails's whodunnit isn't displayed.
It turned out that `username` method returns nil.
`try` method returns nil when there's no method, so when user doesn't have `email` method,
`@user_class.find(@version.whodunnit).try(:email)` returns nil.
Then, try this out:
`nil rescue nil || :foo`
This returns nil, surprisingly.
This means if user doesn't have email method, username is always nil.
So my fix is like below:
`(nil rescue nil) || :foo`
This returns `:foo` as expected.

1 of 1 new or added line in 1 file covered. (100.0%)

39524 of 41759 relevant lines covered (94.65%)

80701.37 hits per line