We have developed a datatype which creates a dropdown/listbox from an external XML file. By selecting an entry in this dropdown, the user stores the unique identifier from the XML file. This identifier can then be used to fetch the complete record from the XML file, combining it with the information stored in the content object.
Maybe you could use the same approach in your project? Contact me at info[at]contactivity[//dot//].com if you need the code (ezp version 4).
Kind regards, Sebastiaan
Certified eZ publish developer with over 9 years of eZ publish experience. Available for challenging eZ publish projects as a technical consultant, project manager, trouble shooter or strategic advisor.
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