forked from GNUsocial/gnu-social
274 lines
10 KiB
PHP
274 lines
10 KiB
PHP
<?php
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/**
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* Data class for happenings
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*
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* PHP version 5
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*
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* @category Data
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
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* Data class for happenings
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*
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* There's already an Event class in lib/event.php, so we couldn't
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* call this an Event without causing a hole in space-time.
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*
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* "Happening" seemed good enough.
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*
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* @category Event
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* @see Managed_DataObject
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*/
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class Happening extends Managed_DataObject
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{
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const OBJECT_TYPE = 'http://activitystrea.ms/schema/1.0/event';
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public $__table = 'happening'; // table name
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public $id; // varchar(36) UUID
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public $uri; // varchar(191) not 255 because utf8mb4 takes more space
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public $profile_id; // int
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public $start_time; // datetime
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public $end_time; // datetime
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public $title; // varchar(191) not 255 because utf8mb4 takes more space
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public $location; // varchar(191) not 255 because utf8mb4 takes more space
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public $url; // varchar(191) not 255 because utf8mb4 takes more space
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public $description; // text
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public $created; // datetime
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/**
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* The One True Thingy that must be defined and declared.
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*/
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public static function schemaDef()
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{
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return array(
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'description' => 'A real-world happening',
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'fields' => array(
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'id' => array('type' => 'char',
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'length' => 36,
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'not null' => true,
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'description' => 'UUID'),
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'uri' => array('type' => 'varchar',
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'length' => 191,
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'not null' => true),
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'profile_id' => array('type' => 'int', 'not null' => true),
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'start_time' => array('type' => 'datetime', 'not null' => true),
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'end_time' => array('type' => 'datetime', 'not null' => true),
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'title' => array('type' => 'varchar',
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'length' => 191,
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'not null' => true),
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'location' => array('type' => 'varchar',
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'length' => 191),
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'url' => array('type' => 'varchar',
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'length' => 191),
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'description' => array('type' => 'text'),
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'created' => array('type' => 'datetime',
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'not null' => true),
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),
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'primary key' => array('id'),
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'unique keys' => array(
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'happening_uri_key' => array('uri'),
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),
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'foreign keys' => array('happening_profile_id__key' => array('profile', array('profile_id' => 'id')),
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'happening_uri__key' => array('notice', array('uri' => 'uri'))),
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'indexes' => array('happening_created_idx' => array('created'),
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'happening_start_end_idx' => array('start_time', 'end_time')),
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);
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}
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public static function saveActivityObject(Activity $act, Notice $stored)
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{
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if (count($act->objects) !== 1) {
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// TRANS: Exception thrown when there are too many activity objects.
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throw new Exception(_m('Too many activity objects.'));
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}
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$actobj = $act->objects[0];
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if (!ActivityUtils::compareTypes($actobj->type, [Happening::OBJECT_TYPE])) {
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// TRANS: Exception thrown when event plugin comes across a non-event type object.
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throw new Exception(_m('Wrong type for object.'));
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}
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try {
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$other = Happening::getByKeys(['uri' => $actobj->id]);
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throw AlreadyFulfilledException('Happening already exists.');
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} catch (NoResultException $e) {
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// alright, let's save this
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}
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$dtstart = null;
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$dtend = null;
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$location = null;
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$url = null;
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foreach ($actobj->extra as $extra) {
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switch ($extra[0]) {
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case 'dtstart':
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$dtstart = $extra[2];
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case 'dtend':
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$dtend = $extra[2];
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break;
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case 'location':
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// location is optional
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$location = $extra[2];
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break;
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case 'url':
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// url is optional
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$url = $extra[2];
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}
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}
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if(empty($dtstart)) {
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// TRANS: Exception thrown when has no start date
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throw new Exception(_m('No start date for event.'));
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}
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if(empty($dtend)) {
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// TRANS: Exception thrown when has no end date
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throw new Exception(_m('No end date for event.'));
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}
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// convert RFC3339 dates delivered in Activity Stream to MySQL DATETIME date format
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$start_time = new DateTime($dtstart);
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$start_time->setTimezone(new DateTimeZone('UTC'));
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$start_time = $start_time->format('Y-m-d H:i:s');
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$end_time = new DateTime($dtend);
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$end_time->setTimezone(new DateTimeZone('UTC'));
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$end_time = $end_time->format('Y-m-d H:i:s');
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$ev = new Happening();
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$ev->id = UUID::gen();
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$ev->uri = $actobj->id;
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$ev->profile_id = $stored->getProfile()->getID();
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$ev->start_time = $start_time;
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$ev->end_time = $end_time;
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$ev->title = $actobj->title;
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$ev->location = $location;
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$ev->description = $stored->getContent();
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$ev->url = $url;
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$ev->created = $stored->getCreated();
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$ev->insert();
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return $ev;
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}
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public function insert()
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{
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$result = parent::insert();
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if ($result === false) {
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common_log_db_error($this, 'INSERT', __FILE__);
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throw new ServerException(_('Failed to insert '._ve(get_called_class()).' into database'));
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}
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return $result;
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}
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/**
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* Returns the profile's canonical url, not necessarily a uri/unique id
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*
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* @return string $url
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*/
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public function getUrl()
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{
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if (empty($this->url) ||
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!filter_var($this->url, FILTER_VALIDATE_URL)) {
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throw new InvalidUrlException($this->url);
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}
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return $this->url;
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}
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public function getUri()
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{
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return $this->uri;
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}
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public function getStored()
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{
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return Notice::getByKeys(array('uri'=>$this->getUri()));
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}
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static function fromStored(Notice $stored)
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{
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if (!ActivityUtils::compareTypes($stored->getObjectType(), [self::OBJECT_TYPE])) {
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throw new ServerException('Notice is not of type '.self::OBJECT_TYPE);
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}
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return self::getByKeys(array('uri'=>$stored->getUri()));
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}
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function getRSVPs()
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{
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return RSVP::forEvent($this);
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}
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function getRSVP($profile)
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{
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return RSVP::pkeyGet(array('profile_id' => $profile->getID(),
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'event_uri' => $this->getUri()));
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}
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static public function getObjectType()
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{
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return self::OBJECT_TYPE;
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}
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public function asActivityObject()
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{
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$actobj = new ActivityObject();
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$actobj->id = $this->getUri();
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$actobj->type = self::getObjectType();
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$actobj->title = $this->title;
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$actobj->summary = $this->description;
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$actobj->extra[] = array('dtstart',
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array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
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common_date_iso8601($this->start_time));
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$actobj->extra[] = array('dtend',
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array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
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common_date_iso8601($this->end_time));
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$actobj->extra[] = array('location',
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array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
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$this->location);
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try {
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$actobj->extra[] = array('url',
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array('xmlns' => 'urn:ietf:params:xml:ns:xcal'),
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$this->getUrl());
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} catch (InvalidUrlException $e) {
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// oh well, no URL for you!
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}
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/* We don't use these ourselves, but we add them to be nice RSS/XML citizens */
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$actobj->extra[] = array('startdate',
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array('xmlns' => 'http://purl.org/rss/1.0/modules/event/'),
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common_date_iso8601($this->start_time));
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$actobj->extra[] = array('enddate',
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array('xmlns' => 'http://purl.org/rss/1.0/modules/event/'),
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common_date_iso8601($this->end_time));
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$actobj->extra[] = array('location',
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array('xmlns' => 'http://purl.org/rss/1.0/modules/event/'),
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$this->location);
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return $actobj;
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}
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}
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