How to generate repeating xml elements in Savon?

Question

soapUI generates this comment Zero or more repetitions in many places in the request XML that it builds. This is part of the XML request.

<v1:Attachments>
   <!--Zero or more repetitions:-->
       <v1:Attachment>
             <v1:FileName>?</v1:FileName>
             <v1:FileExtension>?</v1:FileExtension>
             <v1:FileContents>cid:1220950351678</v1:FileContents>
       </v1:Attachment>
 </v1:Attachments>

I am using Savon 2.2.0 for communicating with the external service. Ruby hashes need unique keys. I tried passing an array of hashes in the format

 attachments: [{attachment:
                {file_name: "foo1", 
                file_extension: "bar1", 
                 file_contents:"binary_encoded_content"}}, 
                {attachment:
                {file_name: "foo2", 
                 file_extension: "bar2", 
                 file_contents: "binary_encoded_content"}}]

But in this case Savon just does a to_s on the array. How can I make this work?

Answer 1

attachments: {
  attachment: [
    {
      file_name: "foo1", 
      file_extension: "bar1", 
      file_contents:"binary_encoded_content"
    }, 
    {
      file_name: "foo2", 
      file_extension: "bar2", 
      file_contents: "binary_encoded_content"
    }
  ]
}

Et voila.