From Joomla! Documentation
Revision as of 20:08, 16 July 2014 by FuzzyBot
A plugin is a kind of Joomla! extension. Plugins provide functions which are associated with trigger events. Joomla provides a set of core plugin events, but any extension can fire (custom) events. When a particular event occurs, all plugin functions of the type associated with the event are executed in sequence. This is a powerful way of extending the functionality of the Joomla! Platform. It also offers extension developers a way to allow other extensions to respond to their actions, making extensions extensible.
The Joomla! plugin architecture follows the Observer design pattern. The JPlugin class provides the means to register custom plugin code with core or custom events. The JDispatcher class (JEventDispatcher in Joomla 3.x) is an event handler which calls all plugins registered for a particular event, when that event is triggered.
To understand how to install and use a plugin in Joomla it is recommended to read Administration of a Plugin in Joomla
To understand plugins better, you should create a basic plugin for Joomla!.
If you have a basic content plugin in a custom module or component, we recommended reading Triggering content plugins in your extension.
To understand the principles on which the Plugin system works Plugin Developer Overview. To then implement this in a component you have designed it is recommended to read Supporting plugins in your component.
Els complements estan agrupats en funció d'en quin cas s'executaran. La llista de tots els complments agrupats per tipus es pot trobar a aquí (els noms d'una gran quantitat d'esdeveniments ha canviat entre i , mira aquí per trobar la llista completa de canvis). També hi ha diversos tutorials de com fer funcionar aquests complements per ajudar a executar cerques en les extensions utilitzant tant la cerca normal com la intel·ligent:
There are further tutorials using the user triggers on how to create an authentication plugin to help users log into Joomla and creating a profile plugin for Joomla.
A more complex example of using plugins to create a new system router to produce URLs is also available ( only).