Refactor

app/controllers/concerns/epp/common.rb

@@ -3,7 +3,6 @@ module Epp::Common
 
   included do
     protect_from_forgery with: :null_session
-    helper_method :epp_head
   end
 
   def proxy
@@ -22,12 +21,4 @@ module Epp::Common
   def current_epp_user
     @current_epp_user ||= EppUser.find(epp_session[:epp_user_id]) if epp_session[:epp_user_id]
   end
-
-  def epp_head xml
-    xml.instruct!
-    xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
-      yield
-    end
-  end
-
 end

app/views/epp/domains/check.xml.builder

@@ -1,3 +1,3 @@
-epp_head do
+xml.epp_head do
   xml.bla
 end

app/views/epp/domains/create.xml.builder

@@ -1,5 +1,4 @@
-xml.instruct!
+xml.epp_head do
-xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
   xml.response do
     xml.result('code' => '1000') do
       xml.msg 'Command completed successfully'

app/views/epp/error.xml.builder

@@ -1,5 +1,4 @@
-xml.instruct!
+xml.epp_head do
-xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
   xml.response do
     xml.result('code' => params[:code]) do
       xml.msg(params[:msg], 'lang' => 'en')

app/views/epp/sessions/greeting.xml.builder

@@ -1,4 +1,4 @@
-epp_head(xml) do
+xml.epp_head do
   xml.greeting do
     xml.svID 'EPP server (DSDng)'
     xml.svDate '2014-06-18T17:46:59+03:00'

app/views/epp/sessions/login_fail.xml.builder

@@ -1,5 +1,4 @@
-xml.instruct!
+xml.epp_head do
-xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
   xml.response do
     xml.result('code' => '2501') do
       xml.msg('Authentication error; server closing connection')

app/views/epp/sessions/login_success.xml.builder

@@ -1,5 +1,4 @@
-xml.instruct!
+xml.epp_head do
-xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
   xml.response do
     xml.result('code' => '1000') do
       xml.msg 'Command completed successfully'

app/views/epp/sessions/logout.xml.builder

@@ -1,5 +1,4 @@
-xml.instruct!
+xml.epp_head do
-xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
   xml.response do
     xml.result('code' => '1500') do
       xml.msg 'Command completed successfully; ending session'

config/initializers/load_class_extensions.rb

@@ -0,0 +1 @@
+Dir[File.join(Rails.root, "lib", "ext", "*.rb")].each {|x| require x }

lib/ext/xml_builder.rb

@@ -0,0 +1,10 @@
+require 'builder'
+
+class Builder::XmlMarkup
+  def epp_head
+    self.instruct!
+    self.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
+      yield
+    end
+  end
+end