If you want to
- Edit the templates
- Create your own widget or shortcode to use with Event Organiser
- Use Event Organiser with other plug-ins such as Gravity Forms
- Simply modify the behaviour of the plug-in, without making changes to the core files
You will probably need to be able to retrieve, create and edit events, venues, categories etc (and other information relating to them). To help with this, Event Organiser provides a growing number of functions and hooks which are documented below.
Note: event categories and tags can be deal with entirely through native WordPress functions (see codex). For everything else, its recommended you use the functions provided by the Event Organiser.
The function reference has been moved here: http://codex.wp-event-organiser.com.
The hook reference has been moved here: http://codex.wp-event-organiser.com/hook-index.html.