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Plugin/Events/User

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Contents

5.3 User Events for Plugin System

5.3.1 Overview

In a standard installation of Joomla! 1.5 we have several predefined events which, when triggered, call functions in the associated plugins. For more information on plugins, look here.

The user events are divided into two parts. First we have the events used while authentication of a user takes place:

 *onLoginUser
 *onLogoutUser
 *onAuthenticate
 *onAuthenticateFailure
 

Second we have the events triggered during user management:

 *onBeforeStoreUser
 *onAfterStoreUser
 *onBeforeDeleteUser
 *onAfterDeleteUser

5.3.2 onLoginUser

5.3.2.1 Description

This event is triggered after the user is authenticated against the Joomla! user-base. If one plugin returns false, the entire authentication process fails.

5.3.2.2 Parameters

Two parameters: credentials, and remember.\\ Credentials is an array with this structure:\\ ['username']\\ ['password']\\ Remember is a boolean, set to true if the login needs to be remembered by the application.

5.3.2.3 Return Value

Boolean

5.3.2.4 Used in files

 *libraries/joomla/application/application.php
 *plugins/user/joomla.php

5.3.2.5 Examples

 *plugins/user/example.php
 

5.3.3 onLogoutUser

5.3.3.1 Description

This event is triggered before the user is logged out of the system. If one plugin returns false, the global logout fails.

5.3.3.2 Parameters

Array of credentials. Structure:\\ ['username']\\ ['id']\\

5.3.3.3 Return Value

Boolean

5.3.3.4 Used in files

 *libraries/joomla/application/application.php
 *plugins/user/joomla.php

5.3.3.5 Examples

 *plugins/user/example.php

5.3.4 onAuthenticate

5.3.4.1 Description

This event is triggered to verify that a set of login credentials is valid.

5.3.4.2 Parameters

Array of credentials. Structure:\\ ['username']\\ ['password']\\ Alternative authentication mechanisms can supply additional credentials.

5.3.4.3 Return Value

An array of JAuthenticateResponse objects detailing the results of each called plugin, including success or failure.

5.3.4.4 Used in files

 *libraries/joomla/application/user/authentication.php
 *plugins/authentication/gmail.php
 *plugins/authentication/joomla.php
 *plugins/authentication/ldap.php

5.3.4.5 Examples

 *plugins/authentication/example.php

5.3.5 onLoginFailure

5.3.5.1 Description

This event is triggered whenever a user authentication request is failed by any plugin.

5.3.5.2 Parameters

Two parameters. The credentials array for the user (see onAuthenticate), and the JAuthenticateResponse that caused the failure.

5.3.5.3 Return Value

Unknown. The return value appears to be ignored in any case.

5.3.5.4 Used in files

 *libraries/joomla/application/user/authentication.php

5.3.6 onBeforeStoreUser

5.3.6.1 Description

This event is triggered before a new user is stored in the database.

5.3.6.2 Parameters

Two parameters:

 *An associative array of the columns in the user table.
 *A unique identifier for this user.

5.3.6.3 Return Value

None

5.3.6.4 Used in files

 *libraries/joomla/user/user.php

5.3.6.5 Examples

 *plugins/user/example.php

5.3.7 onAfterStoreUser

5.3.7.1 Description

This event is triggered after a new user has been stored in the database.

5.3.7.2 Parameters

Two parameters:

 *An associative array of the columns in the user table.
 *A unique identifier for this user.

5.3.7.3 Return Value

None

5.3.7.4 Used in files

 *libraries/joomla/user/user.php

5.3.7.5 Examples

 *plugins/user/example.php

5.3.8 onBeforeDeleteUser

5.3.8.1 Description

The event is triggered when a user is about to be deleted from the system.

5.3.8.2 Parameters

An associative array containing user information. Structure:\\ ['id']\\

5.3.8.3 Return Value

None.

5.3.8.4 Used in files

 *libraries/joomla/user/user.php
 *plugins/user/joomla.php

5.3.8.5 Examples

 *plugins/user/example.php

5.3.9 onAfterDeleteUser

5.3.9.1 Description

The event is triggered after a user has been deleted from the system.

5.3.9.2 Parameters

Three parameters: user information, delete result, and error result. User information is an associative array. Structure:\\ ['id']\\ Delete result is boolean true if the delete succeeded or an error message on failure.\\ Error result is a JError object detailing the error, if any.

5.3.9.3 Return Value

None.

5.3.9.4 Used in files

 *libraries/joomla/user/user.php
 *plugins/user/joomla.php

5.3.9.5 Examples

 *plugins/user/example.php