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| -rw-r--r-- | plugins/Sample/User_greeting_count.php | 169 | ||||
| -rw-r--r-- | plugins/Sample/hello.php | 166 |
2 files changed, 335 insertions, 0 deletions
diff --git a/plugins/Sample/User_greeting_count.php b/plugins/Sample/User_greeting_count.php new file mode 100644 index 000000000..77fb9afeb --- /dev/null +++ b/plugins/Sample/User_greeting_count.php @@ -0,0 +1,169 @@ +<?php +/** + * Data class for counting greetings + * + * PHP version 5 + * + * @category Data + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://status.net/ + * + * StatusNet - the distributed open-source microblogging tool + * Copyright (C) 2009, StatusNet, Inc. + * + * 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 + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * 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/>. + */ + +if (!defined('STATUSNET')) { + exit(1); +} + +require_once INSTALLDIR . '/classes/Memcached_DataObject.php'; + +/** + * Data class for counting greetings + * + * We use the DB_DataObject framework for data classes in StatusNet. Each + * table maps to a particular data class, making it easier to manipulate + * data. + * + * Data classes should extend Memcached_DataObject, the (slightly misnamed) + * extension of DB_DataObject that provides caching, internationalization, + * and other bits of good functionality to StatusNet-specific data classes. + * + * @category Action + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://status.net/ + * + * @see DB_DataObject + */ + +class User_greeting_count extends Memcached_DataObject +{ + public $__table = 'user_greeting_count'; // table name + public $user_id; // int(4) primary_key not_null + public $greeting_count; // int(4) + + /** + * Get an instance by key + * + * This is a utility method to get a single instance with a given key value. + * + * @param string $k Key to use to lookup (usually 'user_id' for this class) + * @param mixed $v Value to lookup + * + * @return User_greeting_count object found, or null for no hits + * + */ + + function staticGet($k, $v=null) + { + return Memcached_DataObject::staticGet('User_greeting_count', $k, $v); + } + + /** + * return table definition for DB_DataObject + * + * DB_DataObject needs to know something about the table to manipulate + * instances. This method provides all the DB_DataObject needs to know. + * + * @return array array of column definitions + */ + + function table() + { + return array('user_id' => DB_DATAOBJECT_INT + DB_DATAOBJECT_NOTNULL, + 'greeting_count' => DB_DATAOBJECT_INT); + } + + /** + * return key definitions for DB_DataObject + * + * DB_DataObject needs to know about keys that the table has; this function + * defines them. + * + * @return array key definitions + */ + + function keys() + { + return array('user_id' => 'K'); + } + + /** + * Magic formula for non-autoincrementing integer primary keys + * + * If a table has a single integer column as its primary key, DB_DataObject + * assumes that the column is auto-incrementing and makes a sequence table + * to do this incrementation. Since we don't need this for our class, we + * overload this method and return the magic formula that DB_DataObject needs. + * + * @return array magic three-false array that stops auto-incrementing. + */ + + function sequenceKey() + { + return array(false, false, false); + } + + /** + * Increment a user's greeting count and return instance + * + * This method handles the ins and outs of creating a new greeting_count for a + * user or fetching the existing greeting count and incrementing its value. + * + * @param integer $user_id ID of the user to get a count for + * + * @return User_greeting_count instance for this user, with count already incremented. + */ + + static function inc($user_id) + { + $gc = User_greeting_count::staticGet('user_id', $user_id); + + if (empty($gc)) { + + $gc = new User_greeting_count(); + + $gc->user_id = $user_id; + $gc->greeting_count = 1; + + $result = $gc->insert(); + + if (!$result) { + throw Exception(sprintf(_m("Could not save new greeting count for %d"), + $user_id)); + } + + } else { + + $orig = clone($gc); + + $gc->greeting_count++; + + $result = $gc->update($orig); + + if (!$result) { + throw Exception(sprintf(_m("Could not increment greeting count for %d"), + $user_id)); + } + } + + return $gc; + } +} diff --git a/plugins/Sample/hello.php b/plugins/Sample/hello.php new file mode 100644 index 000000000..0cfd8a1c3 --- /dev/null +++ b/plugins/Sample/hello.php @@ -0,0 +1,166 @@ +<?php +/** + * Give a warm greeting to our friendly user + * + * PHP version 5 + * + * @category Sample + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://status.net/ + * + * StatusNet - the distributed open-source microblogging tool + * Copyright (C) 2009, StatusNet, Inc. + * + * 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 + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * 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/>. + */ + +if (!defined('STATUSNET')) { + exit(1); +} + +/** + * Give a warm greeting to our friendly user + * + * This sample action shows some basic ways of doing output in an action + * class. + * + * Action classes have several output methods that they override from + * the parent class. + * + * @category Sample + * @package StatusNet + * @author Evan Prodromou <evan@status.net> + * @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3 + * @link http://status.net/ + */ + +class HelloAction extends Action +{ + var $user = null; + var $gc = null; + + /** + * Take arguments for running + * + * This method is called first, and it lets the action class get + * all its arguments and validate them. It's also the time + * to fetch any relevant data from the database. + * + * Action classes should run parent::prepare($args) as the first + * line of this method to make sure the default argument-processing + * happens. + * + * @param array $args $_REQUEST args + * + * @return boolean success flag + */ + + function prepare($args) + { + parent::prepare($args); + + $this->user = common_current_user(); + + if (!empty($this->user)) { + $this->gc = User_greeting_count::inc($this->user->id); + } + + return true; + } + + /** + * Handle request + * + * This is the main method for handling a request. Note that + * most preparation should be done in the prepare() method; + * by the time handle() is called the action should be + * more or less ready to go. + * + * @param array $args $_REQUEST args; handled in prepare() + * + * @return void + */ + + function handle($args) + { + parent::handle($args); + + $this->showPage(); + } + + /** + * Title of this page + * + * Override this method to show a custom title. + * + * @return string Title of the page + */ + + function title() + { + if (empty($this->user)) { + return _m('Hello'); + } else { + return sprintf(_m('Hello, %s'), $this->user->nickname); + } + } + + /** + * show content in the content area + * + * The default StatusNet page has a lot of decorations: menus, + * logos, tabs, all that jazz. This method is used to show + * content in the content area of the page; it's the main + * thing you want to overload. + * + * @return void + */ + + function showContent() + { + if (empty($this->user)) { + $this->element('p', array('class' => 'greeting'), + _m('Hello, stranger!')); + } else { + $this->element('p', array('class' => 'greeting'), + sprintf(_m('Hello, %s'), $this->user->nickname)); + $this->element('p', array('class' => 'greeting_count'), + sprintf(_m('I have greeted you %d time(s).'), + $this->gc->greeting_count)); + } + } + + /** + * Return true if read only. + * + * Some actions only read from the database; others read and write. + * The simple database load-balancer built into StatusNet will + * direct read-only actions to database mirrors (if they are configured), + * and read-write actions to the master database. + * + * This defaults to false to avoid data integrity issues, but you + * should make sure to overload it for performance gains. + * + * @param array $args other arguments, if RO/RW status depends on them. + * + * @return boolean is read only action? + */ + + function isReadOnly($args) + { + return false; + } +} |