Refs #12155 - Use Proc instead of lambda on mailer for Rails 4
Problem: On Rails 3, using a lambda with no arguments works fine in an ActionMailer default. However on Rails 4, the lambda will whine because there is no handling of arguments and ActionMailer is trying to pass a HostMailer.
Solution: Use Procs instead of lambda to allow it to work with and without arguments.
Added by Daniel Lobato Garcia over 8 years ago
Refs #12155 - Use Proc instead of lambda on mailer for Rails 4
Problem:
On Rails 3, using a lambda with no arguments works fine in an
ActionMailer default. However on Rails 4, the lambda will whine because
there is no handling of arguments and ActionMailer is trying to pass a
HostMailer.
Solution:
Use Procs instead of lambda to allow it to work with and without arguments.
How to reproduce the error:
Checkout https://github.com/eLobato/foreman/tree/rails4_from_scratch,
change the -> by ->(args) and put a debug breakpoint inside. Verify
ActionMailer is passed. On Rails 3 this is not the case.
(cherry picked from commit 791e18293f73150d6a5fdd99154a8b149ae3319f)