Editing Contribute: Plugins/ExportPluginsList (section)

== Dealing With Lists ==
In this example the output_list method is overridden in the export plugin to provide column headers. The original method just concatenates the output from the output_dataobj subroutine called on every DataObj in the list.

Note that the method is not provided with a bare array of DataObjs, but a List object is provided within the opts hash. To get an array of DataObjs to loop over you must then call that List object's get_record method.