Joomla plugin event triggers

index.php

Each plugin type  has its own set of events that trigger these plugins to execute. Each plugin can use one or more event triggers but there is no need to use all the event triggers available, just pick out the ones you need. You also have the freedom to create your own custom plugin event triggers in your components, however, that is also outside the scope of this book. The following table summarizes the types of plugins available and their respective event triggers:

Plugin type						Event trigger

Authentication					onUserAuthenticate
								onUserAuthorisationFailure

Captcha							onCheckAnswer
								onDisplay
                                onInit

Content							onContentAfterDelete
								onContentAfterDisplay
                                onContentAfterSave
                                onContentAfterTitle
                                onContentBeforeDelete
                                onContentBeforeDisplay
                                onContentBeforeSave
                                onContentChangeState
                                onContentPrepare
                                onContentPrepareData
                                onContentPrepareForm
                                onContentSearch
                                onContentSearchAreas

Editors							onDisplay
                                onGetContent
                                onGetInsertMethod
                                onInit
                                onSave
                                onSetContent

Editors-XTD                     onDisplay

Extension                       onExtensionAfterInstall
                                onExtensionAfterSave
                                onExtensionAfterUninstall
                                onExtensionAfterUpdate
                                onExtensionBeforeInstall
                                onExtensionBeforeSave
                                onExtensionBeforeUninstall
                                onExtensionBeforeUpdate

Quick Icons						onGetIcons

Search							onContentSearchAreas
                                onContentSearch
                                
Smart Search					onFinderAfterDelete
								onFinderAfterSave
                                onFinderBeforeSave
                                onFinderCategoryChangeState
                                onFinderChangeState

System							onAfterDispatch
								onAfterInitialise
                                onAfterRender
                                onAfterRoute

User							onUserAfterDelete
								onUserAfterSave
                                onUserBeforeDelete
                                onUserBeforeSave
                                onUserLogin
                                onUserLogout