Feature "Additional Data for Page Editor Plugins"

[fneumann]

See https://www.iias.de/docu/goto_docu_wiki_wpage_4731_1357.html

Page component plugins can now maintain their own database tables or object like files etc. They may store the ids of additional data and object in the properties of their page content. To support this, they must:

• overwrite the onClone() and onDelete() methods of their base class
• set the $supports_export= true in their plugin.php (like repository object plugins)
• implement an il<plugin_name>Exporter class as child of ilPageComponentPluginExporter
• implement an il<plugin_name>Importer class as child of ilPageComponentPluginImporter

A Test plugin demonstrating this can be found here:
https://github.com/fneumann/TestPageComponent

[alex40724]

Looks ok to me, I will make some deeper analysis in the next days.