soap4r mapping problem when using google adwords api

The Google Adwords sample that Nahi included in the samples at
http://dev.ctor.org/soap4r/file/trunk/sample/wsdl/googleAdwords/client.rb
does not work.

In the course of fixing it I ran into a roadblock.
Here's my current fix. I highlight the problems I have fixed, and
areas where I'm not very happy with the fix I found.
---
#!/usr/local/bin/ruby

require 'soap/wsdlDriver'
require 'soap/header/simplehandler'

#wsdl = 'https://adwords.google.com/api/adwords/v2/CampaignService?WSDL'
wsdl = 'CampaignService.wsdl'

class HeaderHandler < SOAP::Header::SimpleHandler
  def initialize(tag, value)
    super(XSD::QName.new(nil, tag))
    @tag = tag
    @value = value
  end

#the initial handler from the sample was wrong, it generated 2 level of tags
  def on_simple_outbound
    @value
  end
end

#problem: wsdl2ruby does not pick up soap/property file, so yields a
certificate error when running against this https url
#run it on local file
# To generate deafult.rb, do like this;
# % wsdl2ruby.rb --wsdl
"https://adwords.google.com/api/adwords/v2/CampaignService?WSDL"
--classdef --force
require 'default'

# I don't have an account of AdWords so the following code is not tested.
# Please tell me ([e-mail]) if you will get good/bad result in
# communicating with AdWords Server...
drv = SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver
#problem: http protocol properties set in soap/property from rubyhome
are not picked up
drv.loadproperty('soap/property')
#print drv.options["client"]["ssl_config"].inspect
#problem: wiredump_dev does not output anything when running in SSL mode
drv.wiredump_dev = STDOUT
#the file based logger works
drv.wiredump_file_base = "log"
drv.headerhandler << HeaderHandler.new('email', '[e-mail]')
drv.headerhandler << HeaderHandler.new('password', 'your_password_here')
drv.headerhandler << HeaderHandler.new('useragent', 'P@ playing with
the API from ruby')
drv.headerhandler << HeaderHandler.new('token', 'your_token_here')
camplist = drv.call("getAllAdWordsCampaigns", GetAllAdWordsCampaigns.new(123))
print camplist
---

When I run that with a valid adwords developer account, the call is
made and the correct repsonse is sent back, as seen in the filke log.
However the mapper barfs.

I incldue the relevant data.
Any idea of where to look for next is welcome.
I run soap4r soap4r-1_5_4, which seem to have fixed a few things
regarding doc/literal encoding style.

stack trace
/usr/lib/ruby/1.8/soap/mapping/wsdlliteralregistry.rb:73: warning:
Object#type is deprecated; use Object#class
/usr/lib/ruby/1.8/soap/mapping/wsdlliteralregistry.rb:73:in
`soap2obj': cannot map SOAP::SOAPElement to Ruby object
(SOAP::Mapping::MappingError)
        from /usr/lib/ruby/1.8/soap/mapping/mapping.rb:126:in `_soap2obj'
        from /usr/lib/ruby/1.8/soap/mapping/mapping.rb:49:in `soap2obj'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:417:in `response_doc_lit'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `collect'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `each'
        from /usr/lib/ruby/1.8/soap/baseData.rb:473:in `each'
        from /usr/lib/ruby/1.8/soap/baseData.rb:473:in `each'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `collect'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `response_doc_lit'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:382:in `response_doc'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:289:in `response_obj'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:129:in `call'
        from /usr/lib/ruby/1.8/soap/rpc/driver.rb:177:in `call'
        from ./client.rb:44
in soap2obj #<SOAP::SOAPElement:0x369636
{https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaignsResponse>

the trace in soap2obj is a print node.inspect

here is the response log
<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Header><responseTime
soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next"
soapenv:mustUnderstand="0"
xmlns="https://adwords.google.com/api/adwords/v2">23</responseTime><operations
soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next"
soapenv:mustUnderstand="0"
xmlns="https://adwords.google.com/api/adwords/v2">3</operations></soapenv:Header>
<soapenv:Body>
<getAllAdWordsCampaignsResponse
xmlns="https://adwords.google.com/api/adwords/v2">
<getAllAdWordsCampaignsReturn><id>6000213</id><name>Campaign
#1</name><status>Active</status><startDate>2005-04-16T21:27:50.000Z</startDate><endDate>2011-01-01T07:59:59.000Z</endDate><dailyBudget>1000000</dailyBudget><optInSearchNetwork>true</optInSearchNetwork><optInContentNetwork>true</optInContentNetwork><languageTargeting><languages>en</languages></languageTargeting><geoTargeting
xsi:nil="true"/></getAllAdWordsCampaignsReturn>
...
</getAllAdWordsCampaignsResponse></soapenv:Body></soapenv:Envelope>

It seems to barf on <getAllAdWordsCampaignsResponse
xmlns="https://adwords.google.com/api/adwords/v2">

Here is the rb file generated by wsdl2ruby
require 'xsd/qname'

# {https://adwords.google.com/api/adwords/v2}getCampaign
class GetCampaign
  @@schema_type = "getCampaign"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["id", "SOAP::SOAPInt"]]

  attr_accessor :id

  def initialize(id = nil)
    @id = id
  end
end

# {https://adwords.google.com/api/adwords/v2}getCampaignResponse
class GetCampaignResponse
  @@schema_type = "getCampaignResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getCampaignReturn", "Campaign"]]

  attr_accessor :getCampaignReturn

  def initialize(getCampaignReturn = nil)
    @getCampaignReturn = getCampaignReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}getCampaignList
class GetCampaignList
  @@schema_type = "getCampaignList"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["ids", "SOAP::SOAPInt[]"]]

  attr_accessor :ids

  def initialize(ids = [])
    @ids = ids
  end
end

# {https://adwords.google.com/api/adwords/v2}getCampaignListResponse
class GetCampaignListResponse
  @@schema_type = "getCampaignListResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getCampaignListReturn", "Campaign[]"]]

  attr_accessor :getCampaignListReturn

  def initialize(getCampaignListReturn = [])
    @getCampaignListReturn = getCampaignListReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaigns
class GetAllAdWordsCampaigns
  @@schema_type = "getAllAdWordsCampaigns"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["dummy", "SOAP::SOAPInt"]]

  attr_accessor :dummy

  def initialize(dummy = nil)
    @dummy = dummy
  end
end

# {https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaignsResponse
class GetAllAdWordsCampaignsResponse
  @@schema_type = "getAllAdWordsCampaignsResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getAllAdWordsCampaignsReturn", "Campaign[]"]]

  attr_accessor :getAllAdWordsCampaignsReturn

  def initialize(getAllAdWordsCampaignsReturn = [])
    @getAllAdWordsCampaignsReturn = getAllAdWordsCampaignsReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}addCampaign
class AddCampaign
  @@schema_type = "addCampaign"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaign", "Campaign"]]

  attr_accessor :campaign

  def initialize(campaign = nil)
    @campaign = campaign
  end
end

# {https://adwords.google.com/api/adwords/v2}addCampaignResponse
class AddCampaignResponse
  @@schema_type = "addCampaignResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["addCampaignReturn", "Campaign"]]

  attr_accessor :addCampaignReturn

  def initialize(addCampaignReturn = nil)
    @addCampaignReturn = addCampaignReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}addCampaignList
class AddCampaignList
  @@schema_type = "addCampaignList"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaigns", "Campaign[]"]]

  attr_accessor :campaigns

  def initialize(campaigns = [])
    @campaigns = campaigns
  end
end

# {https://adwords.google.com/api/adwords/v2}addCampaignListResponse
class AddCampaignListResponse
  @@schema_type = "addCampaignListResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["addCampaignListReturn", "Campaign[]"]]

  attr_accessor :addCampaignListReturn

  def initialize(addCampaignListReturn = [])
    @addCampaignListReturn = addCampaignListReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}updateCampaign
class UpdateCampaign
  @@schema_type = "updateCampaign"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaign", "Campaign"]]

  attr_accessor :campaign

  def initialize(campaign = nil)
    @campaign = campaign
  end
end

# {https://adwords.google.com/api/adwords/v2}updateCampaignResponse
class UpdateCampaignResponse
  @@schema_type = "updateCampaignResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = []

  def initialize
  end
end

# {https://adwords.google.com/api/adwords/v2}updateCampaignList
class UpdateCampaignList
  @@schema_type = "updateCampaignList"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaigns", "Campaign[]"]]

  attr_accessor :campaigns

  def initialize(campaigns = [])
    @campaigns = campaigns
  end
end

# {https://adwords.google.com/api/adwords/v2}updateCampaignListResponse
class UpdateCampaignListResponse
  @@schema_type = "updateCampaignListResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = []

  def initialize
  end
end

# {https://adwords.google.com/api/adwords/v2}getOptimizeAdServing
class GetOptimizeAdServing
  @@schema_type = "getOptimizeAdServing"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaignId", "SOAP::SOAPInt"]]

  attr_accessor :campaignId

  def initialize(campaignId = nil)
    @campaignId = campaignId
  end
end

# {https://adwords.google.com/api/adwords/v2}getOptimizeAdServingResponse
class GetOptimizeAdServingResponse
  @@schema_type = "getOptimizeAdServingResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getOptimizeAdServingReturn", "SOAP::SOAPBoolean"]]

  attr_accessor :getOptimizeAdServingReturn

  def initialize(getOptimizeAdServingReturn = nil)
    @getOptimizeAdServingReturn = getOptimizeAdServingReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}setOptimizeAdServing
class SetOptimizeAdServing
  @@schema_type = "setOptimizeAdServing"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaignId", "SOAP::SOAPInt"], ["enable",
"SOAP::SOAPBoolean"]]

  attr_accessor :campaignId
  attr_accessor :enable

  def initialize(campaignId = nil, enable = nil)
    @campaignId = campaignId
    @enable = enable
  end
end

# {https://adwords.google.com/api/adwords/v2}setOptimizeAdServingResponse
class SetOptimizeAdServingResponse
  @@schema_type = "setOptimizeAdServingResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = []

  def initialize
  end
end

# {https://adwords.google.com/api/adwords/v2}getCampaignStats
class GetCampaignStats
  @@schema_type = "getCampaignStats"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["campaignIds", "SOAP::SOAPInt[]"], ["start",
"SOAP::SOAPDateTime"], ["v_end", ["SOAP::SOAPDateTime",
XSD::QName.new(nil, "end")]]]

  attr_accessor :campaignIds
  attr_accessor :start

  def end
    @v_end
  end

  def end=(value)
    @v_end = value
  end

  def initialize(campaignIds = [], start = nil, v_end = nil)
    @campaignIds = campaignIds
    @start = start
    @v_end = v_end
  end
end

# {https://adwords.google.com/api/adwords/v2}getCampaignStatsResponse
class GetCampaignStatsResponse
  @@schema_type = "getCampaignStatsResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getCampaignStatsReturn", "StatsRecord[]"]]

  attr_accessor :getCampaignStatsReturn

  def initialize(getCampaignStatsReturn = [])
    @getCampaignStatsReturn = getCampaignStatsReturn
  end
end

# {https://adwords.google.com/api/adwords/v2}Keyword
class Keyword
  @@schema_type = "Keyword"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["type", "KeywordType"], ["maxCpc",
"SOAP::SOAPLong"], ["adGroupId", "SOAP::SOAPInt"], ["language",
"SOAP::SOAPString"], ["status", "KeywordStatus"], ["negative",
"SOAP::SOAPBoolean"], ["destinationUrl", "SOAP::SOAPString"], ["text",
"SOAP::SOAPString"], ["id", "SOAP::SOAPInt"], ["exemptionRequest",
"SOAP::SOAPString"]]

  attr_accessor :type
  attr_accessor :maxCpc
  attr_accessor :adGroupId
  attr_accessor :language
  attr_accessor :status
  attr_accessor :negative
  attr_accessor :destinationUrl
  attr_accessor :text
  attr_accessor :id
  attr_accessor :exemptionRequest

  def initialize(type = nil, maxCpc = nil, adGroupId = nil, language =
nil, status = nil, negative = nil, destinationUrl = nil, text = nil,
id = nil, exemptionRequest = nil)
    @type = type
    @maxCpc = maxCpc
    @adGroupId = adGroupId
    @language = language
    @status = status
    @negative = negative
    @destinationUrl = destinationUrl
    @text = text
    @id = id
    @exemptionRequest = exemptionRequest
  end
end

# {https://adwords.google.com/api/adwords/v2}LanguageTarget
class LanguageTarget < ::Array
  @@schema_type = "string"
  @@schema_ns = "http://www.w3.org/2001/XMLSchema"
end

# {https://adwords.google.com/api/adwords/v2}GeoTarget
class GeoTarget
  @@schema_type = "GeoTarget"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["countries", "SOAP::SOAPString[]"], ["regions",
"SOAP::SOAPString[]"], ["metros", "SOAP::SOAPString[]"], ["cities",
"SOAP::SOAPString[]"]]

  attr_accessor :countries
  attr_accessor :regions
  attr_accessor :metros
  attr_accessor :cities

  def initialize(countries = [], regions = [], metros = [], cities = [])
    @countries = countries
    @regions = regions
    @metros = metros
    @cities = cities
  end
end

# {https://adwords.google.com/api/adwords/v2}Campaign
class Campaign
  @@schema_type = "Campaign"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["id", "SOAP::SOAPInt"], ["name",
"SOAP::SOAPString"], ["status", "CampaignStatus"], ["startDate",
"SOAP::SOAPDateTime"], ["endDate", "SOAP::SOAPDateTime"],
["dailyBudget", "SOAP::SOAPLong"], ["optInSearchNetwork",
"SOAP::SOAPBoolean"], ["optInContentNetwork", "SOAP::SOAPBoolean"],
["campaignNegativeKeywords", "Keyword[]"], ["languageTargeting",
"LanguageTarget"], ["geoTargeting", "GeoTarget"]]

  attr_accessor :id
  attr_accessor :name
  attr_accessor :status
  attr_accessor :startDate
  attr_accessor :endDate
  attr_accessor :dailyBudget
  attr_accessor :optInSearchNetwork
  attr_accessor :optInContentNetwork
  attr_accessor :campaignNegativeKeywords
  attr_accessor :languageTargeting
  attr_accessor :geoTargeting

  def initialize(id = nil, name = nil, status = nil, startDate = nil,
endDate = nil, dailyBudget = nil, optInSearchNetwork = nil,
optInContentNetwork = nil, campaignNegativeKeywords = [],
languageTargeting = nil, geoTargeting = nil)
    @id = id
    @name = name
    @status = status
    @startDate = startDate
    @endDate = endDate
    @dailyBudget = dailyBudget
    @optInSearchNetwork = optInSearchNetwork
    @optInContentNetwork = optInContentNetwork
    @campaignNegativeKeywords = campaignNegativeKeywords
    @languageTargeting = languageTargeting
    @geoTargeting = geoTargeting
  end
end

# {https://adwords.google.com/api/adwords/v2}ApiException
class ApiException
  @@schema_type = "ApiException"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["code", "SOAP::SOAPInt"], ["internal",
"SOAP::SOAPBoolean"], ["message", "SOAP::SOAPString"], ["trigger",
"SOAP::SOAPString"], ["violations", "SOAP::SOAPString"]]

  attr_accessor :code
  attr_accessor :internal
  attr_accessor :message
  attr_accessor :trigger
  attr_accessor :violations

  def initialize(code = nil, internal = nil, message = nil, trigger =
nil, violations = nil)
    @code = code
    @internal = internal
    @message = message
    @trigger = trigger
    @violations = violations
  end
end

# {https://adwords.google.com/api/adwords/v2}StatsRecord
class StatsRecord
  @@schema_type = "StatsRecord"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["averagePosition", "SOAP::SOAPDouble"],
["clicks", "SOAP::SOAPLong"], ["conversionRate", "SOAP::SOAPDouble"],
["conversions", "SOAP::SOAPLong"], ["cost", "SOAP::SOAPLong"], ["id",
"SOAP::SOAPLong"], ["impressions", "SOAP::SOAPLong"]]

  attr_accessor :averagePosition
  attr_accessor :clicks
  attr_accessor :conversionRate
  attr_accessor :conversions
  attr_accessor :cost
  attr_accessor :id
  attr_accessor :impressions

  def initialize(averagePosition = nil, clicks = nil, conversionRate =
nil, conversions = nil, cost = nil, id = nil, impressions = nil)
    @averagePosition = averagePosition
    @clicks = clicks
    @conversionRate = conversionRate
    @conversions = conversions
    @cost = cost
    @id = id
    @impressions = impressions
  end
end

# {https://adwords.google.com/api/adwords/v2}KeywordStatus
module KeywordStatus
  Deleted = "Deleted"
  Disabled = "Disabled"
  Disapproved = "Disapproved"
  InTrial = "InTrial"
  Normal = "Normal"
  OnHold = "OnHold"
end

# {https://adwords.google.com/api/adwords/v2}KeywordType
module KeywordType
  Broad = "Broad"
  Exact = "Exact"
  Phrase = "Phrase"
end

# {https://adwords.google.com/api/adwords/v2}CampaignStatus
module CampaignStatus
  Active = "Active"
  Deleted = "Deleted"
  Ended = "Ended"
  Paused = "Paused"
  Pending = "Pending"
  Suspended = "Suspended"
end

The error happens in soap/mapping/wsdlliteralregistry.rb

  # node should be a SOAPElement
  def soap2obj(node, obj_class = nil)
          print "in soap2obj #{node.inspect}"
    unless obj_class.nil?
      raise MappingError.new("must not reach here")
    end
    begin
      return any2obj(node)
    rescue MappingError
    end
    if @excn_handler_soap2obj
      begin
        return @excn_handler_soap2obj.call(node) { |yield_node|
            Mapping._soap2obj(yield_node, self)
          }
      rescue Exception
      end
    end
    raise MappingError.new("cannot map #{node.type.name} to Ruby object")
  end

I guess the problem must lie in the fact that the class
GetAllAdWordsCampaignsResponse is not known to the registry, to be
applied to the response element
{https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaignsResponse>

# {https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaignsResponse
class GetAllAdWordsCampaignsResponse
  @@schema_type = "getAllAdWordsCampaignsResponse"
  @@schema_ns = "https://adwords.google.com/api/adwords/v2"
  @@schema_element = [["getAllAdWordsCampaignsReturn", "Campaign[]"]]

How is this registry informed about the classes that must be used for
mapping when using the wsdl files?
Is there a message to be sent to drv in order to let it know about
default.rb classes?

A few hours later after finding this other sample
I now generate the client driver myself using wsdl2ruby
wsdl2ruby.rb --wsdl CampaignService.wsdl --type client

Now I understand where the mapping is defined.
Still the new program yields the same error

---
#!/usr/local/bin/ruby

require 'soap/wsdlDriver'
require 'soap/header/simplehandler'

wsdl = 'https://adwords.google.com/api/adwords/v2/CampaignService?WSDL'

class HeaderHandler < SOAP::Header::SimpleHandler
  def initialize(tag, value)
    super(XSD::QName.new(nil, tag))
    @tag = tag
    @value = value
  end

#the initial handler from the sample was wrong, it generated 2 level of tags
  def on_simple_outbound
    @value
  end
end

#problem: wsdl2ruby does not pick up soap/property file, so yields a
certificate error when running against this https url
#run it on local file
# To generate deafult.rb, do like this;
# % wsdl2ruby.rb --wsdl
"https://adwords.google.com/api/adwords/v2/CampaignService?WSDL"
--classdef --force
#require 'default'

# I don't have an account of AdWords so the following code is not tested.
# Please tell me ([e-mail]) if you will get good/bad result in
# communicating with AdWords Server...
#drv = SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver

require 'defaultDriver.rb'
require 'yaml'

prefs = YAML::load( File.open('adwords.yaml', 'r'))
headers = prefs['headers']

drv = CampaignService.new()

#problem: http protocol properties set in soap/property from rubyhome
are not picked up
drv.loadproperty('soap/property')
#problem: wiredump_dev does not output anything when running in SSL mode
#drv.wiredump_dev = STDOUT
#the file based logger works
drv.wiredump_file_base = "log"

headers.each {|key, value| drv.headerhandler << HeaderHandler.new(key, value)}

puts drv.getAllAdWordsCampaigns(GetAllAdWordsCampaigns.new(123))
---

/usr/lib/ruby/1.8/soap/mapping/wsdlliteralregistry.rb:73:in
`soap2obj': cannot map SOAP::SOAPElement to Ruby object
(SOAP::Mapping::MappingError)
        from /usr/lib/ruby/1.8/soap/mapping/mapping.rb:126:in `_soap2obj'
        from /usr/lib/ruby/1.8/soap/mapping/mapping.rb:49:in `soap2obj'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:417:in `response_doc_lit'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `collect'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `each'
        from /usr/lib/ruby/1.8/soap/baseData.rb:473:in `each'
        from /usr/lib/ruby/1.8/soap/baseData.rb:473:in `each'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `collect'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:416:in `response_doc_lit'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:382:in `response_doc'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:289:in `response_obj'
        from /usr/lib/ruby/1.8/soap/rpc/proxy.rb:129:in `call'
        from /usr/lib/ruby/1.8/soap/rpc/driver.rb:177:in `call'
        from /usr/lib/ruby/1.8/soap/rpc/driver.rb:231:in
`getAllAdWordsCampaigns'
        from /usr/lib/ruby/1.8/soap/rpc/driver.rb:226:in
`getAllAdWordsCampaigns'
        from ./client.rb:39
in soap2obj #<SOAP::SOAPElement:0x36be68
{https://adwords.google.com/api/adwords/v2}getAllAdWordsCampaignsResponse>

It is as if the mapping defined in CampaignService is not used.

Thanks in advance for any hints.

P@