Support the use of underscored symbols when registering interceptors and observers like we do elsewhere within Rails.
Add the ability to intercept emails before previewing in a similar fashion to how emails can be intercepted before delivery.
class CSSInlineStyler def self.previewing_email(message) # inline CSS styles end end ActionMailer::Base.register_preview_interceptor CSSInlineStyler
Add mailer previews feature based on 37 Signals mail_view gem.
mail()without arguments serves as getter for the current mail message and keeps previously set headers.
class MailerWithCallback < ActionMailer::Base after_action :a_callback def welcome mail subject: "subject", to: ["email@example.com"] end def a_callback mail # => returns the current mail message end end
Instrument the generation of Action Mailer messages. The time it takes to generate a message is written to the log.
Invoke mailer defaults as procs only if they are procs, do not convert with
to_proc. That an object is convertible to a proc does not mean it's meant to be always used as a proc.
Please check 4-0-stable for previous changes.