<?php
/**
* Data class for event RSVPs
*
* 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.
*
* 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('GNUSOCIAL')) { exit(1); }
/**
* Data class for event RSVPs
*
* @category Event
* @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
*/
class RSVP extends Managed_DataObject
{
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(191) not 255 because utf8mb4 takes more space
public $profile_id; // int
public $event_uri; // varchar(191) not 255 because utf8mb4 takes more space
public $response; // tinyint
public $created; // datetime
/**
* The One True Thingy that must be defined and declared.
*/
public static function schemaDef()
{
return array(
'description' => 'Plan to attend event',
'fields' => array(
'id' => array('type' => 'char',
'length' => 36,
'not null' => true,
'description' => 'UUID'),
'uri' => array('type' => 'varchar',
'length' => 191,
'not null' => true),
'profile_id' => array('type' => 'int'),
'event_uri' => array('type' => 'varchar',
'length' => 191,
'not null' => true,
'description' => 'Event URI'),
'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_uri'),
),
'foreign keys' => array('rsvp_event_uri_key' => array('happening', array('event_uri' => 'uri')),
'rsvp_profile_id__key' => array('profile', array('profile_id' => 'id'))),
'indexes' => array('rsvp_created_idx' => array('created')),
);
}
static public function beforeSchemaUpdate()
{
$table = strtolower(get_called_class());
$schema = Schema::get();
$schemadef = $schema->getTableDef($table);
// 2015-12-31 RSVPs refer to Happening by event_uri now, not event_id. Let's migrate!
if (isset($schemadef['fields']['event_uri'])) {
// We seem to have already migrated, good!
return;
}
// this is a "normal" upgrade from StatusNet for example
echo "\nFound old $table table, upgrading it to add 'event_uri' field...";
$schemadef['fields']['event_uri'] = array('type' => 'varchar', 'length' => 191, 'not null' => true, 'description' => 'Event URI');
$schemadef['fields']['uri']['length'] = 191; // we likely don't have to discover too long keys here
$schema->ensureTable($table, $schemadef);
$rsvp = new RSVP();
$rsvp->find();
while ($rsvp->fetch()) {
$event = Happening::getKV('id', $rsvp->event_id);
if (!$event instanceof Happening) {
$rsvp->delete();
continue;
}
$orig = clone($rsvp);
$rsvp->event_uri = $event->uri;
$rsvp->updateWithKeys($orig);
}
print "DONE.\n";
print "Resuming core schema upgrade...";
}
static function saveActivityObject(Activity $act, Notice $stored)
{
$target = Notice::getByKeys(array('uri'=>$act->target->id));
if (!ActivityUtils::compareTypes($target->getObjectType(), [ Happening::OBJECT_TYPE ])) {
throw new ClientException('RSVP not aimed at a Happening');
}
// FIXME: Maybe we need some permission handling here, though I think it's taken care of in saveActivity?
try {
$other = RSVP::getByKeys( [ 'profile_id' => $stored->getProfile()->getID(),
'event_uri' => $target->getUri(),
] );
// TRANS: Client exception thrown when trying to save an already existing RSVP ("please respond").
throw new AlreadyFulfilledException(_m('RSVP already exists.'));
} catch (NoResultException $e) {
// No previous RSVP, so go ahead and add.
}
$rsvp = new RSVP();
$rsvp->id = UUID::gen(); // remove this
$rsvp->uri = $stored->getUri();
$rsvp->profile_id = $stored->getProfile()->getID();
$rsvp->event_uri = $target->getUri();
$rsvp->response = self::codeFor($stored->getVerb());
$rsvp->created = $stored->getCreated();
$rsvp->insert();
self::blow('rsvp:for-event:%s', $target->getUri());
return $rsvp;
}
static public function getObjectType()
{
return ActivityObject::ACTIVITY;
}
public function asActivityObject()
{
$happening = $this->getEvent();
$actobj = new ActivityObject();
$actobj->id = $this->getUri();
$actobj->type = self::getObjectType();
$actobj->title = $this->asString();
$actobj->content = $this->asString();
$actobj->target = array($happening->asActivityObject());
return $actobj;
}
static function codeFor($verb)
{
switch (true) {
case ActivityUtils::compareVerbs($verb, [RSVP::POSITIVE]):
return 'Y';
break;
case ActivityUtils::compareVerbs($verb, [RSVP::NEGATIVE]):
return 'N';
break;
case ActivityUtils::compareVerbs($verb, [RSVP::POSSIBLE]):
return '?';
break;
default:
// TRANS: Exception thrown when requesting an undefined verb for RSVP.
throw new Exception(sprintf(_m('Unknown verb "%s".'),$verb));
}
}
static function verbFor($code)
{
switch ($code) {
case 'Y':
case 'yes':
return RSVP::POSITIVE;
break;
case 'N':
case 'no':
return RSVP::NEGATIVE;
break;
case '?':
case 'maybe':
return RSVP::POSSIBLE;
break;
default:
// TRANS: Exception thrown when requesting an undefined code for RSVP.
throw new ClientException(sprintf(_m('Unknown code "%s".'), $code));
}
}
public function getUri()
{
return $this->uri;
}
public function getEventUri()
{
return $this->event_uri;
}
public function getStored()
{
return Notice::getByKeys(['uri' => $this->getUri()]);
}
static function fromStored(Notice $stored)
{
return self::getByKeys(['uri' => $stored->getUri()]);
}
static function byEventAndActor(Happening $event, Profile $actor)
{
return self::getByKeys(['event_uri' => $event->getUri(),
'profile_id' => $actor->getID()]);
}
static function forEvent(Happening $event)
{
$keypart = sprintf('rsvp:for-event:%s', $event->getUri());
$idstr = self::cacheGet($keypart);
if ($idstr !== false) {
$ids = explode(',', $idstr);
} else {
$ids = array();
$rsvp = new RSVP();
$rsvp->selectAdd();
$rsvp->selectAdd('id');
$rsvp->event_uri = $event->getUri();
if ($rsvp->find()) {
while ($rsvp->fetch()) {
$ids[] = $rsvp->id;
}
}
self::cacheSet($keypart, implode(',', $ids));
}
$rsvps = array(RSVP::POSITIVE => array(),
RSVP::NEGATIVE => array(),
RSVP::POSSIBLE => array());
foreach ($ids as $id) {
$rsvp = RSVP::getKV('id', $id);
if (!empty($rsvp)) {
$verb = self::verbFor($rsvp->response);
$rsvps[$verb][] = $rsvp;
}
}
return $rsvps;
}
function getProfile()
{
return Profile::getByID($this->profile_id);
}
function getEvent()
{
return Happening::getByKeys(['uri' => $this->getEventUri()]);
}
function asHTML()
{
return self::toHTML($this->getProfile(),
$this->getEvent(),
$this->response);
}
function asString()
{
return self::toString($this->getProfile(),
$this->getEvent(),
$this->response);
}
static function toHTML(Profile $profile, Happening $event, $response)
{
$fmt = null;
switch ($response) {
case 'Y':
// TRANS: HTML version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile URL, %2$s a profile name,
// TRANS: %3$s is an event URL, %4$s an event title.
$fmt = _m("<span class='automatic event-rsvp'><a href='%1\$s'>%2\$s</a> is attending <a href='%3\$s'>%4\$s</a>.</span>");
break;
case 'N':
// TRANS: HTML version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile URL, %2$s a profile name,
// TRANS: %3$s is an event URL, %4$s an event title.
$fmt = _m("<span class='automatic event-rsvp'><a href='%1\$s'>%2\$s</a> is not attending <a href='%3\$s'>%4\$s</a>.</span>");
break;
case '?':
// TRANS: HTML version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile URL, %2$s a profile name,
// TRANS: %3$s is an event URL, %4$s an event title.
$fmt = _m("<span class='automatic event-rsvp'><a href='%1\$s'>%2\$s</a> might attend <a href='%3\$s'>%4\$s</a>.</span>");
break;
default:
// TRANS: Exception thrown when requesting a user's RSVP status for a non-existing response code.
// TRANS: %s is the non-existing response code.
throw new Exception(sprintf(_m('Unknown response code %s.'),$response));
}
if (empty($event)) {
$eventUrl = '#';
// TRANS: Used as event title when not event title is available.
// TRANS: Used as: Username [is [not ] attending|might attend] an unknown event.
$eventTitle = _m('an unknown event');
} else {
$eventUrl = $event->getStored()->getUrl();
$eventTitle = $event->title;
}
return sprintf($fmt,
htmlspecialchars($profile->getUrl()),
htmlspecialchars($profile->getBestName()),
htmlspecialchars($eventUrl),
htmlspecialchars($eventTitle));
}
static function toString($profile, $event, $response)
{
$fmt = null;
switch ($response) {
case 'Y':
// TRANS: Plain text version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile name, %2$s is an event title.
$fmt = _m('%1$s is attending %2$s.');
break;
case 'N':
// TRANS: Plain text version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile name, %2$s is an event title.
$fmt = _m('%1$s is not attending %2$s.');
break;
case '?':
// TRANS: Plain text version of an RSVP ("please respond") status for a user.
// TRANS: %1$s is a profile name, %2$s is an event title.
$fmt = _m('%1$s might attend %2$s.');
break;
default:
// TRANS: Exception thrown when requesting a user's RSVP status for a non-existing response code.
// TRANS: %s is the non-existing response code.
throw new Exception(sprintf(_m('Unknown response code %s.'),$response));
break;
}
if (empty($event)) {
// TRANS: Used as event title when not event title is available.
// TRANS: Used as: Username [is [not ] attending|might attend] an unknown event.
$eventTitle = _m('an unknown event');
} else {
$eventTitle = $event->title;
}
return sprintf($fmt,
$profile->getBestName(),
$eventTitle);
}
public function delete($useWhere=false)
{
self::blow('rsvp:for-event:%s', $this->id);
return parent::delete($useWhere);
}
public function insert()
{
$result = parent::insert();
if ($result === false) {
common_log_db_error($this, 'INSERT', __FILE__);
throw new ServerException(_('Failed to insert '._ve(get_called_class()).' into database'));
}
return $result;
}
}