How do I add attributes to a nested XML array using Savon? - ruby

Question

I am using savon version 2.2 to call some SOAP services. For simple services everything is working OK. However one service has a complex structure like the example below with both repeating groups and attributes on each group:
<sch:RequestControl>
<sch:requestID>6989668868</sch:requestID>
</sch:RequestControl>
<sch:InquiryParam>
<sch:crmParam name="AccountNumber">1234567</sch:crmParam>
<sch:crmParam name="History">1</sch:crmParam>
</sch:InquiryParam>
My current message looks like this:
<RequestControl>
<requestID>6989668868</requestID>
</RequestControl>
<InquiryParam>
<crmParam>1234567</crmParam>
<attributes>
<crmParam>
<name>AccountNumber</name>
</crmParam>
</attributes>
</InquiryParam>
<InquiryParam>
<crmParam>1</crmParam>
<attributes>
<crmParam>
<name>History</name>
</crmParam>
</attributes>
</InquiryParam>
The above is produced using this logic:
message = { :RequestControl =>
{ :requestID => 6989668868 },
:InquiryParam => [
{ :crmParam => { :content! => #account_number } ,
:attributes => { "crmParam" => {"name" => "AccountNumber"} } },
{ :crmParam => { :content! => #history } ,
:attributes => { "crmParam" => {"name" => "History"} } } ]
}
I've tried various combinations using :crmParam => { :content! => #account_number, :attributes => {'name'=>'AccountNumber'} } and similar based on the savon and gyoku documentation but have run onto a brick wall in getting the XML to format like the example. I know I can brute force the message by assigning it to xml but that makes it difficult to see what's going on.
Can anyone suggest a fix to have the attributes inside the crmParam tags?

Answer 1

I'm not sure Savon handles a Ruby array as you'd like, but the following script should give you a better idea what you can do.
require 'savon'
c = Savon.client(endpoint: "http://www.example.com",
namespace: "urn:ns.example.com",
log: true,
log_level: :debug,
pretty_print_xml: true)
r = c.call(:call,
:message => {
:InquiryParam => [
{"crmParam" => 123,
:attributes! => { "crmParam" => { "name" => "AccountNumber" }}},
{"crmParam" => 456,
:attributes! => { "crmParam" => { "name" => "history" }}}
]
}