from soap4r-ml
I am working on a Rails app that needs to access an externally
provided web service. As a result, I would like to use both soap4r
and Rails (ActiveRecord, ActiveSupport, etc.) in a single app.
Unfortunately, both soap4r and activesupport expect certain objects to
respond to to_xml, but each expects different symantics. The result
is a runtime exception when I try to send a request to my web service.
RuntimeError: Not all elements respond to to_xml
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/array/conversions.rb:48:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/baseData.rb:749:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/array/conversions.rb:66:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/array/conversions.rb:66:in `each'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/array/conversions.rb:66:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/vendor/builder/xmlbase.rb:140:in `call'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/vendor/builder/xmlbase.rb:140:in `_nested_structures'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/vendor/builder/xmlbase.rb:60:in `method_missing'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/vendor/builder/xmlbase.rb:32:in `__send__'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/vendor/builder/xmlbase.rb:32:in `tag!'
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/
active_support/core_ext/array/conversions.rb:66:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/baseData.rb:749:in `to_xml'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/generator.rb:72:in `encode_data'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/generator.rb:121:in `encode_element'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/element.rb:125:in `encode'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/element.rb:124:in `each'
... 6 levels...
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/generator.rb:75:in `encode_data'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/generator.rb:60:in `generate'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/processor.rb:30:in `marshal'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/rpc/proxy.rb:255:in `marshal'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/rpc/proxy.rb:167:in `route'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/rpc/proxy.rb:142:in `call'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.5.20070605/lib/
soap/rpc/driver.rb:180:in `call'
When soap4r asks an Array whether it responds (normally it would not),
activesupport's extensions to the array cause it to indicate that it
does. Array#to_xml expects all its contained objects to also respond
to to_xml.
I understand that this is not strictly a bug in either soap4r or
Rails, but it does prevent me from using both together. What would
you propose?
Thanks,
Layne Miller
