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Created attachment 5775 [details]
patch to add XML output to Database.php

When developing extensions or other features that use AJAX and custom database queries there is no current function to return a database query as an XML document to the AJAX script.

Attached is a diff file which introduces a function to create an XML document based on a Database transaction.  Insert, Update and Delete queries should return a boolean value, when parsed through the returnXML() function will generate an XML document as so:

{for queries that have returned as TRUE}
<root>
  <result>OK</result>
</root>

{for queries that have returned as FALSE}
<root>
  <result>FAIL</result>
</root>

Select queries which should return a ResultWrapper object, when parsed throught the returnXML() function will generate an XML document as so:

<root>
  <result>
    <fieldname_1>row1_result1</fieldname_1>
    <fieldname_2>row2_result1</fieldname_2>
  </result>
  <result>
    <fieldname_1>row1_result2</fieldname_1>
    <fieldname_2>row2_result2</fieldname_2>
  </result>
</root>

Where the row_titles are the field names from the database transaction.