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update SamplePlugin.php also

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Evan Prodromou 2010-01-03 11:18:26 -10:00
parent 1348c6e819
commit e940790241
1 changed files with 230 additions and 19 deletions
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plugins/Sample/SamplePlugin.php
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<?php
/*
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009, StatusNet, Inc.
*
* A sample module to show best practices for StatusNet plugins
*
* PHP version 5
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
@ -15,44 +19,251 @@
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Sample
* @package StatusNet
* @author Brion Vibber <brionv@status.net>
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
/**
* @package SamplePlugin
* @maintainer Your Name <you@example.com>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Sample plugin main class
*
* Each plugin requires a main class to interact with the StatusNet system.
*
* The main class usually extends the Plugin class that comes with StatusNet.
*
* The class has standard-named methods that will be called when certain events
* happen in the code base. These methods have names like 'onX' where X is an
* event name (see EVENTS.txt for the list of available events). Event handlers
* have pre-defined arguments, based on which event they're handling. A typical
* event handler:
*
* function onSomeEvent($paramA, &$paramB)
* {
* if ($paramA == 'jed') {
* throw new Exception(sprintf(_m("Invalid parameter %s"), $paramA));
* }
* $paramB = 'spock';
* return true;
* }
*
* Event handlers must return a boolean value. If they return false, all other
* event handlers for this event (in other plugins) will be skipped, and in some
* cases the default processing for that event would be skipped. This is great for
* replacing the default action of an event.
*
* If the handler returns true, processing of other event handlers and the default
* processing will continue. This is great for extending existing functionality.
*
* If the handler throws an exception, processing will stop, and the exception's
* error will be shown to the user.
*
* To install a plugin (like this one), site admins add the following code to
* their config.php file:
*
* addPlugin('Sample');
*
* Plugins must be installed in one of the following directories:
*
* local/plugins/{$pluginclass}.php
* local/plugins/{$name}/{$pluginclass}.php
* local/{$pluginclass}.php
* local/{$name}/{$pluginclass}.php
* plugins/{$pluginclass}.php
* plugins/{$name}/{$pluginclass}.php
*
* Here, {$name} is the name of the plugin, like 'Sample', and {$pluginclass} is
* the name of the main class, like 'SamplePlugin'. Plugins that are part of the
* main StatusNet distribution go in 'plugins' and third-party or local ones go
* in 'local'.
*
* Simple plugins can be implemented as a single module. Others are more complex
* and require additional modules; these should use their own directory, like
* 'local/plugins/{$name}/'. All files related to the plugin, including images,
* JavaScript, CSS, external libraries or PHP modules should go in the plugin
* directory.
*
* @category Sample
* @package StatusNet
* @author Brion Vibber <brionv@status.net>
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class SamplePlugin extends Plugin
{
function onInitializePlugin()
/**
* Plugins are configured using public instance attributes. To set
* their values, site administrators use this syntax:
*
* addPlugin('Sample', array('attr1' => 'foo', 'attr2' => 'bar'));
*
* The same plugin class can be initialized multiple times with different
* arguments:
*
* addPlugin('EmailNotify', array('sendTo' => 'evan@status.net'));
* addPlugin('EmailNotify', array('sendTo' => 'brionv@status.net'));
*
*/
public $attr1 = null;
public $attr2 = null;
/**
* Initializer for this plugin
*
* Plugins overload this method to do any initialization they need,
* like connecting to remote servers or creating paths or so on.
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function initialize()
{
// Event handlers normally return true to indicate that all is well.
//
// Returning false will cancel further processing of any other
// plugins or core code hooking the same event.
return true;
}
/**
* Hook for RouterInitialized event.
* Cleanup for this plugin
*
* Plugins overload this method to do any cleanup they need,
* like disconnecting from remote servers or deleting temp files or so on.
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function cleanup()
{
return true;
}
/**
* Database schema setup
*
* Plugins can add their own tables to the StatusNet database. Plugins
* should use StatusNet's schema interface to add or delete tables. The
* ensureTable() method provides an easy way to ensure a table's structure
* and availability.
*
* By default, the schema is checked every time StatusNet is run (say, when
* a Web page is hit). Admins can configure their systems to only check the
* schema when the checkschema.php script is run, greatly improving performance.
* However, they need to remember to run that script after installing or
* upgrading a plugin!
*
* @see Schema
* @see ColumnDef
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onCheckSchema()
{
$schema = Schema::get();
// For storing user-submitted flags on profiles
$schema->ensureTable('user_greeting_count',
array(new ColumnDef('user_id', 'integer', null,
true, 'PRI'),
new ColumnDef('greeting_count', 'integer')));
return true;
}
/**
* Load related modules when needed
*
* Most non-trivial plugins will require extra modules to do their work. Typically
* these include data classes, action classes, widget classes, or external libraries.
*
* This method receives a class name and loads the PHP file related to that class. By
* tradition, action classes typically have files named for the action, all lower-case.
* Data classes are in files with the data class name, initial letter capitalized.
*
* Note that this method will be called for *all* overloaded classes, not just ones
* in this plugin! So, make sure to return true by default to let other plugins, and
* the core code, get a chance.
*
* @param string $cls Name of the class to be loaded
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onAutoload($cls)
{
$dir = dirname(__FILE__);
switch ($cls)
{
case 'HelloAction':
include_once $dir . '/' . strtolower(mb_substr($cls, 0, -6)) . '.php';
return false;
case 'User_greeting_count':
include_once $dir . '/'.$cls.'.php';
return false;
default:
return true;
}
}
/**
* Map URLs to actions
*
* This event handler lets the plugin map URLs on the site to actions (and
* thus an action handler class). Note that the action handler class for an
* action will be named 'FoobarAction', where action = 'foobar'. The class
* must be loaded in the onAutoload() method.
*
* @param Net_URL_Mapper $m path-to-action mapper
* @return boolean hook return
*
* @return boolean hook value; true means continue processing, false means stop.
*/
function onRouterInitialized($m)
{
$m->connect(':nickname/samples',
array('action' => 'showsamples'),
array('feed' => '[A-Za-z0-9_-]+'));
$m->connect('settings/sample',
array('action' => 'samplesettings'));
$m->connect('main/hello',
array('action' => 'hello'));
return true;
}
/**
* Modify the default menu to link to our custom action
*
* Using event handlers, it's possible to modify the default UI for pages
* almost without limit. In this method, we add a menu item to the default
* primary menu for the interface to link to our action.
*
* The Action class provides a rich set of events to hook, as well as output
* methods.
*
* @param Action $action The current action handler. Use this to
* do any output.
*
* @return boolean hook value; true means continue processing, false means stop.
*
* @see Action
*/
function onEndPrimaryNav($action)
{
// common_local_url() gets the correct URL for the action name
// we provide
$action->menuItem(common_local_url('hello'),
_m('Hello'), _m('A warm greeting'), false, 'nav_hello');
return true;
}
}