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mperham--sidekiq/lib/sidekiq/extensions/action_mailer.rb

37 lines
1.2 KiB
Ruby

require 'sidekiq/extensions/generic_proxy'
module Sidekiq
module Extensions
##
# Adds 'delay' and 'delay_for' to ActionMailer to offload arbitrary email
# delivery to Sidekiq. Example:
#
# UserMailer.delay.send_welcome_email(new_user)
# UserMailer.delay_for(5.days).send_welcome_email(new_user)
# UserMailer.delay_until(5.days.from_now).send_welcome_email(new_user)
class DelayedMailer
include Sidekiq::Worker
def perform(yml)
(target, method_name, args) = YAML.load(yml)
msg = target.send(method_name, *args)
# The email method can return nil, which causes ActionMailer to return
# an undeliverable empty message.
msg.deliver if msg && (msg.to || msg.cc || msg.bcc) && msg.from
end
end
module ActionMailer
def delay(options={})
Proxy.new(DelayedMailer, self, options)
end
def delay_for(interval, options={})
Proxy.new(DelayedMailer, self, options.merge('at' => Time.now.to_f + interval.to_f))
end
def delay_until(timestamp, options={})
Proxy.new(DelayedMailer, self, options.merge('at' => timestamp.to_f))
end
end
end
end