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require 'delegate'
module ActionMailer
# The <tt>ActionMailer::MessageDelivery</tt> class is used by
# <tt>ActionMailer::Base</tt> when creating a new mailer.
# <tt>MessageDelivery</tt> is a wrapper (+Delegator+ subclass) around a lazy
# created <tt>Mail::Message</tt>. You can get direct access to the
# <tt>Mail::Message</tt>, deliver the email or schedule the email to be sent
# through Active Job.
#
# Notifier.welcome(User.first) # an ActionMailer::MessageDelivery object
# Notifier.welcome(User.first).deliver_now # sends the email
# Notifier.welcome(User.first).deliver_later # enqueue email delivery as a job through Active Job
# Notifier.welcome(User.first).message # a Mail::Message object
class MessageDelivery < Delegator
def initialize(mailer, mail_method, *args) #:nodoc:
@mailer = mailer
@mail_method = mail_method
@args = args
end
def __getobj__ #:nodoc:
@obj ||= begin
mailer = @mailer.new
mailer.process @mail_method, *@args
mailer.message
end
end
def __setobj__(obj) #:nodoc:
@obj = obj
end
# Returns the Mail::Message object
def message
__getobj__
end
# Enqueues the email to be delivered through Active Job. When the
# job runs it will send the email using +deliver_now!+. That means
# that the message will be sent bypassing checking +perform_deliveries+
# and +raise_delivery_errors+, so use with caution.
#
# Notifier.welcome(User.first).deliver_later!
# Notifier.welcome(User.first).deliver_later!(wait: 1.hour)
# Notifier.welcome(User.first).deliver_later!(wait_until: 10.hours.from_now)
#
# Options:
#
# * <tt>:wait</tt> - Enqueue the email to be delivered with a delay
# * <tt>:wait_until</tt> - Enqueue the email to be delivered at (after) a specific date / time
# * <tt>:queue</tt> - Enqueue the email on the specified queue
def deliver_later!(options={})
enqueue_delivery :deliver_now!, options
end
# Enqueues the email to be delivered through Active Job. When the
# job runs it will send the email using +deliver_now+.
#
# Notifier.welcome(User.first).deliver_later
# Notifier.welcome(User.first).deliver_later(wait: 1.hour)
# Notifier.welcome(User.first).deliver_later(wait_until: 10.hours.from_now)
#
# Options:
#
# * <tt>:wait</tt> - Enqueue the email to be delivered with a delay.
# * <tt>:wait_until</tt> - Enqueue the email to be delivered at (after) a specific date / time.
# * <tt>:queue</tt> - Enqueue the email on the specified queue.
def deliver_later(options={})
enqueue_delivery :deliver_now, options
end
# Delivers an email without checking +perform_deliveries+ and +raise_delivery_errors+,
# so use with caution.
#
# Notifier.welcome(User.first).deliver_now!
#
def deliver_now!
message.deliver!
end
# Delivers an email:
#
# Notifier.welcome(User.first).deliver_now
#
def deliver_now
message.deliver
end
private
def enqueue_delivery(delivery_method, options={})
args = @mailer.name, @mail_method.to_s, delivery_method.to_s, *@args
ActionMailer::DeliveryJob.set(options).perform_later(*args)
end
end
end
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