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-rw-r--r--actionmailer/lib/action_mailer/base.rb73
1 files changed, 45 insertions, 28 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 1ab68d2953..7eae76f93b 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -15,11 +15,17 @@ module ActionMailer
#
# $ rails generate mailer Notifier
#
- # The generated model inherits from <tt>ActionMailer::Base</tt>. A mailer model defines methods
+ # The generated model inherits from <tt>ApplicationMailer</tt> which in turn
+ # inherits from <tt>ActionMailer::Base</tt>. A mailer model defines methods
# used to generate an email message. In these methods, you can setup variables to be used in
# the mailer views, options on the mail itself such as the <tt>:from</tt> address, and attachments.
#
- # class Notifier < ActionMailer::Base
+ # class ApplicationMailer < ActionMailer::Base
+ # default from: 'from@exmaple.com'
+ # layout 'mailer'
+ # end
+ #
+ # class Notifier < ApplicationMailer
# default from: 'no-reply@example.com',
# return_path: 'system@example.com'
#
@@ -39,11 +45,8 @@ module ActionMailer
# in the same manner as <tt>attachments[]=</tt>
#
# * <tt>headers[]=</tt> - Allows you to specify any header field in your email such
- # as <tt>headers['X-No-Spam'] = 'True'</tt>. Note, while most fields like <tt>To:</tt>
- # <tt>From:</tt> can only appear once in an email header, other fields like <tt>X-Anything</tt>
- # can appear multiple times. If you want to change a field that can appear multiple times,
- # you need to set it to nil first so that Mail knows you are replacing it and not adding
- # another field of the same name.
+ # as <tt>headers['X-No-Spam'] = 'True'</tt>. Note that declaring a header multiple times
+ # will add many fields of the same name. Read #headers doc for more information.
#
# * <tt>headers(hash)</tt> - Allows you to specify multiple headers in your email such
# as <tt>headers({'X-No-Spam' => 'True', 'In-Reply-To' => '1234@message.id'})</tt>
@@ -55,7 +58,7 @@ module ActionMailer
#
# The mail method, if not passed a block, will inspect your views and send all the views with
# the same name as the method, so the above action would send the +welcome.text.erb+ view
- # file as well as the +welcome.text.html.erb+ view file in a +multipart/alternative+ email.
+ # file as well as the +welcome.html.erb+ view file in a +multipart/alternative+ email.
#
# If you want to explicitly render only certain templates, pass a block:
#
@@ -87,7 +90,8 @@ module ActionMailer
# name as the method in your mailer model. For example, in the mailer defined above, the template at
# <tt>app/views/notifier/welcome.text.erb</tt> would be used to generate the email.
#
- # Variables defined in the model are accessible as instance variables in the view.
+ # Variables defined in the methods of your mailer model are accessible as instance variables in their
+ # corresponding view.
#
# Emails by default are sent in plain text, so a sample view for our model example might look like this:
#
@@ -128,11 +132,6 @@ module ActionMailer
#
# config.action_mailer.default_url_options = { host: "example.com" }
#
- # When you decide to set a default <tt>:host</tt> for your mailers, then you need to make sure to use the
- # <tt>only_path: false</tt> option when using <tt>url_for</tt>. Since the <tt>url_for</tt> view helper
- # will generate relative URLs by default when a <tt>:host</tt> option isn't explicitly provided, passing
- # <tt>only_path: false</tt> will ensure that absolute URLs are generated.
- #
# = Sending mail
#
# Once a mailer action and template are defined, you can deliver your message or create it and save it
@@ -180,7 +179,7 @@ module ActionMailer
#
# Sending attachment in emails is easy:
#
- # class ApplicationMailer < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# def welcome(recipient)
# attachments['free_book.pdf'] = File.read('path/to/file.pdf')
# mail(to: recipient, subject: "New account information")
@@ -196,7 +195,7 @@ module ActionMailer
# If you need to send attachments with no content, you need to create an empty view for it,
# or add an empty body parameter like this:
#
- # class ApplicationMailer < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# def welcome(recipient)
# attachments['free_book.pdf'] = File.read('path/to/file.pdf')
# mail(to: recipient, subject: "New account information", body: "")
@@ -208,7 +207,7 @@ module ActionMailer
# You can also specify that a file should be displayed inline with other HTML. This is useful
# if you want to display a corporate logo or a photo.
#
- # class ApplicationMailer < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# def welcome(recipient)
# attachments.inline['photo.png'] = File.read('path/to/photo.png')
# mail(to: recipient, subject: "Here is what we look like")
@@ -247,7 +246,7 @@ module ActionMailer
# Action Mailer provides some intelligent defaults for your emails, these are usually specified in a
# default method inside the class definition:
#
- # class Notifier < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# default sender: 'system@example.com'
# end
#
@@ -265,7 +264,7 @@ module ActionMailer
# As you can pass in any header, you need to either quote the header as a string, or pass it in as
# an underscored symbol, so the following will work:
#
- # class Notifier < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# default 'Content-Transfer-Encoding' => '7bit',
# content_description: 'This is a description'
# end
@@ -273,7 +272,7 @@ module ActionMailer
# Finally, Action Mailer also supports passing <tt>Proc</tt> objects into the default hash, so you
# can define methods that evaluate as the message is being generated:
#
- # class Notifier < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# default 'X-Special-Header' => Proc.new { my_method }
#
# private
@@ -298,7 +297,7 @@ module ActionMailer
# This may be useful, for example, when you want to add default inline attachments for all
# messages sent out by a certain mailer class:
#
- # class Notifier < ActionMailer::Base
+ # class Notifier < ApplicationMailer
# before_action :add_inline_attachment!
#
# def welcome
@@ -494,7 +493,7 @@ module ActionMailer
# Sets the defaults through app configuration:
#
- # config.action_mailer.default { from: "no-reply@example.org" }
+ # config.action_mailer.default(from: "no-reply@example.org")
#
# Aliased by ::default_options=
def default(value = nil)
@@ -587,8 +586,6 @@ module ActionMailer
}
ActiveSupport::Notifications.instrument("process.action_mailer", payload) do
- lookup_context.skip_default_locale!
-
super
@_message = NullMail.new unless @_mail_was_called
end
@@ -625,6 +622,26 @@ module ActionMailer
# The resulting <tt>Mail::Message</tt> will have the following in its header:
#
# X-Special-Domain-Specific-Header: SecretValue
+ #
+ # Note about replacing already defined headers:
+ #
+ # * +subject+
+ # * +sender+
+ # * +from+
+ # * +to+
+ # * +cc+
+ # * +bcc+
+ # * +reply-to+
+ # * +orig-date+
+ # * +message-id+
+ # * +references+
+ #
+ # Fields can only appear once in email headers while other fields such as
+ # <tt>X-Anything</tt> can appear multiple times.
+ #
+ # If you want to replace any header which already exists, first set it to
+ # +nil+ in order to reset the value otherwise another field will be added
+ # for the same header.
def headers(args = nil)
if args
@_message.headers(args)
@@ -685,8 +702,8 @@ module ActionMailer
# The main method that creates the message and renders the email templates. There are
# two ways to call this method, with a block, or without a block.
#
- # Both methods accept a headers hash. This hash allows you to specify the most used headers
- # in an email message, these are:
+ # It accepts a headers hash. This hash allows you to specify
+ # the most used headers in an email message, these are:
#
# * +:subject+ - The subject of the message, if this is omitted, Action Mailer will
# ask the Rails I18n class for a translated +:subject+ in the scope of
@@ -835,7 +852,7 @@ module ActionMailer
when user_content_type.present?
user_content_type
when m.has_attachments?
- if m.attachments.detect { |a| a.inline? }
+ if m.attachments.detect(&:inline?)
["multipart", "related", params]
else
["multipart", "mixed", params]
@@ -890,7 +907,7 @@ module ActionMailer
if templates.empty?
raise ActionView::MissingTemplate.new(paths, name, paths, false, 'mailer')
else
- templates.uniq { |t| t.formats }.each(&block)
+ templates.uniq(&:formats).each(&block)
end
end