From a2880827b4b023a87889138aa39f1182d0265194 Mon Sep 17 00:00:00 2001
From: Mikel Lindsaar <raasdnil@gmail.com>
Date: Wed, 30 Dec 2009 20:43:56 +1100
Subject: Adding :transfer_encoding -> :content_transfer_encoding as part of
 TmailCompat

---
 actionmailer/lib/action_mailer.rb              |  2 --
 actionmailer/lib/action_mailer/base.rb         |  3 ++-
 actionmailer/lib/action_mailer/test_case.rb    |  2 +-
 actionmailer/lib/action_mailer/tmail_compat.rb | 11 +++++++++++
 actionmailer/test/tmail_compat_test.rb         |  9 +++++++++
 5 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/actionmailer/lib/action_mailer.rb b/actionmailer/lib/action_mailer.rb
index 039715c2f5..55ddbb24f4 100644
--- a/actionmailer/lib/action_mailer.rb
+++ b/actionmailer/lib/action_mailer.rb
@@ -45,5 +45,3 @@ module Text
 
   autoload :Format, 'action_mailer/vendor/text_format'
 end
-
-require 'action_mailer/tmail_compat'
\ No newline at end of file
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index aea2498d4d..f34a9bae47 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -1,5 +1,6 @@
 require 'active_support/core_ext/class'
 require 'mail'
+require 'action_mailer/tmail_compat'
 
 module ActionMailer #:nodoc:
   # Action Mailer allows you to send email from your application using a mailer model and views.
@@ -149,7 +150,7 @@ module ActionMailer #:nodoc:
   #
   #       part "text/plain" do |p|
   #         p.body = render_message("signup-as-plain", :account => recipient)
-  #         p.transfer_encoding = "base64"
+  #         p.content_transfer_encoding = "base64"
   #       end
   #     end
   #   end
diff --git a/actionmailer/lib/action_mailer/test_case.rb b/actionmailer/lib/action_mailer/test_case.rb
index 445abd0b89..e8632d4559 100644
--- a/actionmailer/lib/action_mailer/test_case.rb
+++ b/actionmailer/lib/action_mailer/test_case.rb
@@ -1,5 +1,5 @@
 require 'active_support/test_case'
-require 'mail'
+require 'action_mailer/base'
 
 module ActionMailer
   class NonInferrableMailerError < ::StandardError
diff --git a/actionmailer/lib/action_mailer/tmail_compat.rb b/actionmailer/lib/action_mailer/tmail_compat.rb
index cacd79be27..0d6fc13347 100644
--- a/actionmailer/lib/action_mailer/tmail_compat.rb
+++ b/actionmailer/lib/action_mailer/tmail_compat.rb
@@ -6,5 +6,16 @@ module Mail
       content_type(*args)
     end
     
+    
+    alias :old_transfer_encoding :transfer_encoding
+    def transfer_encoding(value = nil)
+      if value
+        STDERR.puts("Message#transfer_encoding is deprecated, please call Message#content_transfer_encoding with the same arguments.\n#{caller}")
+        content_transfer_encoding(value)
+      else
+        old_transfer_encoding
+      end
+    end
+    
   end
 end
\ No newline at end of file
diff --git a/actionmailer/test/tmail_compat_test.rb b/actionmailer/test/tmail_compat_test.rb
index 9b0e91f5f8..faa267e3bf 100644
--- a/actionmailer/test/tmail_compat_test.rb
+++ b/actionmailer/test/tmail_compat_test.rb
@@ -10,5 +10,14 @@ class TmailCompatTest < Test::Unit::TestCase
     end
     assert_equal mail.content_type.string, "text/plain"
   end
+
+  def test_transfer_encoding_raises_deprecation_warning
+    mail = Mail.new
+    STDERR.expects(:puts) # Deprecation warning
+    assert_nothing_raised do
+      mail.transfer_encoding "base64"
+    end
+    assert_equal mail.content_transfer_encoding.value, "base64"
+  end
   
 end
-- 
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