gnu-social/plugins/Event/RSVP.php

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<?php
/**
* Data class for event RSVPs
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*
* 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) 2011, StatusNet, Inc.
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*
* 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);
}
/**
* Data class for event RSVPs
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*
* @category Event
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* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*
* @see Managed_DataObject
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*/
class RSVP extends Managed_DataObject
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{
const POSITIVE = 'http://activitystrea.ms/schema/1.0/rsvp-yes';
const POSSIBLE = 'http://activitystrea.ms/schema/1.0/rsvp-maybe';
const NEGATIVE = 'http://activitystrea.ms/schema/1.0/rsvp-no';
public $__table = 'rsvp'; // table name
public $id; // varchar(36) UUID
public $uri; // varchar(255)
public $profile_id; // int
public $event_id; // varchar(36) UUID
public $response; // tinyint
public $created; // datetime
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/**
* Get an instance by key
*
* @param string $k Key to use to lookup (usually 'id' for this class)
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* @param mixed $v Value to lookup
*
* @return RSVP object found, or null for no hits
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*
*/
function staticGet($k, $v=null)
{
return Memcached_DataObject::staticGet('RSVP', $k, $v);
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}
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/**
* Get an instance by compound key
*
* @param array $kv array of key-value mappings
*
* @return Bookmark object found, or null for no hits
*
*/
function pkeyGet($kv)
{
return Memcached_DataObject::pkeyGet('RSVP', $kv);
}
/**
* Add the compound profile_id/event_id index to our cache keys
* since the DB_DataObject stuff doesn't understand compound keys
* except for the primary.
*
* @return array
*/
function _allCacheKeys() {
$keys = parent::_allCacheKeys();
$keys[] = self::multicacheKey('RSVP', array('profile_id' => $this->profile_id,
'event_id' => $this->event_id));
return $keys;
}
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/**
* The One True Thingy that must be defined and declared.
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*/
public static function schemaDef()
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{
return array(
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'description' => 'Plan to attend event',
'fields' => array(
'id' => array('type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID'),
'uri' => array('type' => 'varchar',
'length' => 255,
'not null' => true),
'profile_id' => array('type' => 'int'),
'event_id' => array('type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID'),
'response' => array('type' => 'char',
'length' => '1',
'description' => 'Y, N, or ? for three-state yes, no, maybe'),
'created' => array('type' => 'datetime',
'not null' => true),
),
'primary key' => array('id'),
'unique keys' => array(
'rsvp_uri_key' => array('uri'),
'rsvp_profile_event_key' => array('profile_id', 'event_id'),
),
'foreign keys' => array('rsvp_event_id_key' => array('event', array('event_id' => 'id')),
'rsvp_profile_id__key' => array('profile', array('profile_id' => 'id'))),
'indexes' => array('rsvp_created_idx' => array('created')),
);
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}
function saveNew($profile, $event, $verb, $options=array())
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{
common_debug("RSVP::saveNew({$profile->id}, {$event->id}, '$verb', 'some options');");
if (array_key_exists('uri', $options)) {
$other = RSVP::staticGet('uri', $options['uri']);
if (!empty($other)) {
throw new ClientException(_('RSVP already exists.'));
}
}
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$other = RSVP::pkeyGet(array('profile_id' => $profile->id,
'event_id' => $event->id));
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if (!empty($other)) {
throw new ClientException(_('RSVP already exists.'));
}
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$rsvp = new RSVP();
$rsvp->id = UUID::gen();
$rsvp->profile_id = $profile->id;
$rsvp->event_id = $event->id;
$rsvp->response = self::codeFor($verb);
common_debug("Got value {$rsvp->response} for verb {$verb}");
if (array_key_exists('created', $options)) {
$rsvp->created = $options['created'];
} else {
$rsvp->created = common_sql_now();
}
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if (array_key_exists('uri', $options)) {
$rsvp->uri = $options['uri'];
} else {
$rsvp->uri = common_local_url('showrsvp',
array('id' => $rsvp->id));
}
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$rsvp->insert();
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// XXX: come up with something sexier
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$content = $rsvp->asString();
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$rendered = $rsvp->asHTML();
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$options = array_merge(array('object_type' => $verb),
$options);
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if (!array_key_exists('uri', $options)) {
$options['uri'] = $rsvp->uri;
}
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$eventNotice = $event->getNotice();
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if (!empty($eventNotice)) {
$options['reply_to'] = $eventNotice->id;
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}
$saved = Notice::saveNew($profile->id,
$content,
array_key_exists('source', $options) ?
$options['source'] : 'web',
$options);
return $saved;
}
function codeFor($verb)
{
switch ($verb) {
case RSVP::POSITIVE:
return 'Y';
break;
case RSVP::NEGATIVE:
return 'N';
break;
case RSVP::POSSIBLE:
return '?';
break;
default:
throw new Exception("Unknown verb {$verb}");
}
}
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static function verbFor($code)
{
switch ($code) {
case 'Y':
return RSVP::POSITIVE;
break;
case 'N':
return RSVP::NEGATIVE;
break;
case '?':
return RSVP::POSSIBLE;
break;
default:
throw new Exception("Unknown code {$code}");
}
}
function getNotice()
{
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$notice = Notice::staticGet('uri', $this->uri);
if (empty($notice)) {
throw new ServerException("RSVP {$this->id} does not correspond to a notice in the DB.");
}
return $notice;
}
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static function fromNotice($notice)
{
return RSVP::staticGet('uri', $notice->uri);
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}
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static function forEvent($event)
{
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$rsvps = array(RSVP::POSITIVE => array(),
RSVP::NEGATIVE => array(),
RSVP::POSSIBLE => array());
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$rsvp = new RSVP();
$rsvp->event_id = $event->id;
if ($rsvp->find()) {
while ($rsvp->fetch()) {
$verb = self::verbFor($rsvp->response);
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$rsvps[$verb][] = clone($rsvp);
}
}
return $rsvps;
}
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function getProfile()
{
$profile = Profile::staticGet('id', $this->profile_id);
if (empty($profile)) {
throw new Exception("No profile with ID {$this->profile_id}");
}
return $profile;
}
function getEvent()
{
$event = Happening::staticGet('id', $this->event_id);
if (empty($event)) {
throw new Exception("No event with ID {$this->event_id}");
}
return $event;
}
function asHTML()
{
return self::toHTML($this->getProfile(),
$this->getEvent(),
$this->response);
}
function asString()
{
return self::toString($this->getProfile(),
$this->getEvent(),
$this->response);
}
static function toHTML($profile, $event, $response)
{
$fmt = null;
$notice = $event->getNotice();
switch ($response) {
case 'Y':
$fmt = _("<span class='automatic event-rsvp'><a href='%1s'>%2s</a> is attending <a href='%3s'>%4s</a>.</span>");
break;
case 'N':
$fmt = _("<span class='automatic event-rsvp'><a href='%1s'>%2s</a> is not attending <a href='%3s'>%4s</a>.</span>");
break;
case '?':
$fmt = _("<span class='automatic event-rsvp'><a href='%1s'>%2s</a> might attend <a href='%3s'>%4s</a>.</span>");
break;
default:
throw new Exception("Unknown response code {$response}");
break;
}
return sprintf($fmt,
htmlspecialchars($profile->profileurl),
htmlspecialchars($profile->getBestName()),
htmlspecialchars($notice->bestUrl()),
htmlspecialchars($event->title));
}
static function toString($profile, $event, $response)
{
$fmt = null;
$notice = $event->getNotice();
switch ($response) {
case 'Y':
$fmt = _("%1s is attending %2s.");
break;
case 'N':
$fmt = _("%1s is not attending %2s.");
break;
case '?':
$fmt = _("%1s might attend %2s.>");
break;
default:
throw new Exception("Unknown response code {$response}");
break;
}
return sprintf($fmt,
$profile->getBestName(),
$event->title);
}
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}