3 files changed, 8 insertions, 11 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 6ae3940e6d..0bf60a2c24 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -409,7 +409,7 @@ module ActionMailer #:nodoc:
     protected
 
       def set_payload_for_mail(payload, mail) #:nodoc:
-        payload[:mailer]     = self.name
+        payload[:mailer]     = name
         payload[:message_id] = mail.message_id
         payload[:subject]    = mail.subject
         payload[:to]         = mail.to
@@ -421,11 +421,8 @@ module ActionMailer #:nodoc:
       end
 
       def method_missing(method, *args) #:nodoc:
-        if action_methods.include?(method.to_s)
-          new(method, *args).message
-        else
-          super
-        end
+        return super unless respond_to?(method)
+        new(method, *args).message
       end
     end
 
diff --git a/actionmailer/lib/action_mailer/old_api.rb b/actionmailer/lib/action_mailer/old_api.rb
index b8c15df263..0396f0775e 100644
--- a/actionmailer/lib/action_mailer/old_api.rb
+++ b/actionmailer/lib/action_mailer/old_api.rb
@@ -247,8 +247,8 @@ module ActionMailer
         [ nil, {} ]
       else
         ctype, *attrs = @content_type.split(/;\s*/)
-        attrs = attrs.inject({}) { |h,s| k,v = s.split(/\=/, 2); h[k] = v; h }
-        [ctype, {"charset" => @charset}.merge(attrs)]
+        attrs = Hash[attrs.map { |attr| attr.split(/\=/, 2) }]
+        [ctype, {"charset" => @charset}.merge!(attrs)]
       end
     end
   end
diff --git a/actionmailer/lib/action_mailer/railtie.rb b/actionmailer/lib/action_mailer/railtie.rb
index 86136bdafd..d67a5b6521 100644
--- a/actionmailer/lib/action_mailer/railtie.rb
+++ b/actionmailer/lib/action_mailer/railtie.rb
@@ -14,9 +14,9 @@ module ActionMailer
       paths   = app.config.paths
       options = app.config.action_mailer
 
-      options.assets_dir      ||= paths.public.to_a.first
-      options.javascripts_dir ||= paths.public.javascripts.to_a.first
-      options.stylesheets_dir ||= paths.public.stylesheets.to_a.first
+      options.assets_dir      ||= paths["public"].first
+      options.javascripts_dir ||= paths["public/javascripts"].first
+      options.stylesheets_dir ||= paths["public/stylesheets"].first
 
       # make sure readers methods get compiled
       options.asset_path           ||= nil