translate the operation name to find the namespace

translate the operation name to whatever the global :convert_request_keys_to
option was set to before trying to resolve the namespaces for a qualified message.

fixes #342.

lib/savon/message.rb

@@ -19,7 +19,8 @@ def to_s
       return @message.to_s unless @message.kind_of? Hash
 
       if @element_form_default == :qualified
-        @message = QualifiedMessage.new(@types, @used_namespaces, @request_key_converter).to_hash(@message, [@operation_name.to_s])
+        translated_operation_name = Gyoku.xml_tag(@operation_name, :key_converter => @key_converter).to_s
+        @message = QualifiedMessage.new(@types, @used_namespaces, @request_key_converter).to_hash(@message, [translated_operation_name])
       end
 
       gyoku_options = {

lib/savon/qualified_message.rb

@@ -15,12 +15,12 @@ def to_hash(hash, path)
       return hash.to_s unless hash.kind_of? Hash
 
       hash.inject({}) do |newhash, (key, value)|
-        camelcased_key = Gyoku.xml_tag(key, :key_converter => @key_converter).to_s
-        newpath = path + [camelcased_key]
+        translated_key = Gyoku.xml_tag(key, :key_converter => @key_converter).to_s
+        newpath = path + [translated_key]
 
         if @used_namespaces[newpath]
           newhash.merge(
-            "#{@used_namespaces[newpath]}:#{camelcased_key}" =>
+            "#{@used_namespaces[newpath]}:#{translated_key}" =>
               add_namespaces_to_body(value, @types[newpath] ? [@types[newpath]] : newpath)
           )
         else

spec/integration/ratp_example_spec.rb

@@ -0,0 +1,40 @@
+ require "spec_helper"
+
+describe "RATP example" do
+
+  it "retrieves information about a specific station" do
+    client = Savon.client do
+      # The WSDL document provided by the service.
+      wsdl "http://www.ratp.fr/wsiv/services/Wsiv?wsdl"
+
+      # Lower timeouts so these specs don't take forever when the service is not available.
+      open_timeout 10
+      read_timeout 10
+
+      # Disable logging for cleaner spec output.
+      log false
+    end
+
+    response = client.call(:get_stations) do
+      # For the corrent values to pass for :from_unit and :to_unit, I searched the WSDL for
+      # the "FromUnit" type which is a "TemperatureUnit" enumeration that looks like this:
+      #
+      # <s:simpleType name="TemperatureUnit">
+      #   <s:restriction base="s:string">
+      #     <s:enumeration value="degreeCelsius"/>
+      #     <s:enumeration value="degreeFahrenheit"/>
+      #     <s:enumeration value="degreeRankine"/>
+      #     <s:enumeration value="degreeReaumur"/>
+      #     <s:enumeration value="kelvin"/>
+      #   </s:restriction>
+      # </s:simpleType>
+      #
+      # Support for XS schema types needs to be improved.
+      message(:station => { :id => 1975 }, :limit => 1)
+    end
+
+    station_name = response.body[:get_stations_response][:return][:stations][:name]
+    expect(station_name).to eq("Cite")
+  end
+
+end