Revert "Merge pull request #7202 from asanghi/perform_deliveries_in_mail"

Reverting because it feels backward to specify a delivery to not
be performed while the e-mail is being composed. It is simpler (and
makes more sense) to delegate the responsibility to the calling code.

actionmailer/CHANGELOG.md

@@ -1,12 +1,5 @@
 ## Rails 4.0.0 (unreleased) ##
 
-* Prevent mail from being delievered within the mailer actions by setting `perform_deliveries: false` *Aditya Sanghi*
-
-    mail :to => user.email, :subject => "Campaign", :perform_deliveries => user.sendable?
-
-    Global perform_deliveries flag when set to false is not overridden however. This allows you to stop some emails
-    from being delivered based on Spam Content/Unsubscribed User criterion from within the mailer action.
-
 * Allow to set default Action Mailer options via `config.action_mailer.default_options=` *Robert Pankowecki*
 
 * Raise an `ActionView::MissingTemplate` exception when no implicit template could be found. *Damien Mathieu*

actionmailer/lib/action_mailer/base.rb

@@ -683,7 +683,7 @@ module ActionMailer #:nodoc:
       m.charset = charset = headers[:charset]
 
       # Set configure delivery behavior
-      wrap_delivery_behavior!(headers.delete(:delivery_method),headers.delete(:perform_deliveries))
+      wrap_delivery_behavior!(headers.delete(:delivery_method))
 
       # Assign all headers except parts_order, content_type and body
       assignable = headers.except(:parts_order, :content_type, :body, :template_name, :template_path)

actionmailer/lib/action_mailer/delivery_methods.rb

@@ -57,7 +57,7 @@ module ActionMailer
         self.delivery_methods = delivery_methods.merge(symbol.to_sym => klass).freeze
       end
 
-      def wrap_delivery_behavior(mail, method=nil, perform_deliveries_header=nil) #:nodoc:
+      def wrap_delivery_behavior(mail, method=nil) #:nodoc:
         method ||= self.delivery_method
         mail.delivery_handler = self
 
@@ -74,7 +74,7 @@ module ActionMailer
           mail.delivery_method(method)
         end
 
-        mail.perform_deliveries    = perform_deliveries && (perform_deliveries_header.nil? || perform_deliveries_header)
+        mail.perform_deliveries    = perform_deliveries
         mail.raise_delivery_errors = raise_delivery_errors
       end
     end

actionmailer/test/delivery_methods_test.rb

@@ -82,7 +82,6 @@ class MailDeliveryTest < ActiveSupport::TestCase
     def welcome(hash={})
       mail(DEFAULT_HEADERS.merge(hash))
     end
-
   end
 
   def setup
@@ -130,18 +129,6 @@ class MailDeliveryTest < ActiveSupport::TestCase
     DeliveryMailer.welcome.deliver
   end
 
-  test "does not perform deliveries if customized per instance" do
-    DeliveryMailer.perform_deliveries = true
-    m = DeliveryMailer.welcome(:perform_deliveries => false)
-    assert_equal(false,m.perform_deliveries)
-  end
-
-  test "does not perform deliveries if globally set to off but instance instructs delivery" do
-    DeliveryMailer.perform_deliveries = false
-    m = DeliveryMailer.welcome(:perform_deliveries => true)
-    assert_equal(false,m.perform_deliveries)
-  end
-
   test "does not append the deliveries collection if told not to perform the delivery" do
     DeliveryMailer.perform_deliveries = false
     DeliveryMailer.deliveries.clear