function Streams_after_Streams_Stream_save_Streams_greeting($params)
{
$s = $params['stream'];
$parts = explode('/', $s->name, 3);
if (count($parts) < 3) {
throw new Q_Exception_WrongValue(array('field' => 'stream name', 'range' => 'Streams/greeting/$communityId'));
}
$communityId = $parts[2];
$p = new Streams_Participant();
$p->publisherId = $communityId;
$p->streamName = "Streams/community/main";
$p->userId = $s->publisherId;
if ($p->retrieve()) {
$p->setExtra('Streams/greeting', $s->content);
$p->save();
}
}
/**
* If the user is participating in the stream, sets state of participant row
* as "left" and posts a "Streams/leave" type message to the stream
* @method leave
* @param $options=array() {array}
* An associative array of options. The keys can be:<br/>
* "userId": The user who is leaving the stream. Defaults to the logged-in user.
* "skipAccess": if true, skip access check for whether user can join
* @param $participant=null {reference}
* Optional reference to a participant object that will be filled
* to point to the participant object, if any.
* @return {boolean}
*/
function leave($options = array(), &$participant = null)
{
$stream = $this->fetchAsUser($options, $userId);
if (empty($options['skipAccess']) and !$stream->testWriteLevel('join')) {
if (!$stream->testReadLevel('see')) {
throw new Streams_Exception_NoSuchStream();
}
throw new Users_Exception_NotAuthorized();
}
$participant = new Streams_Participant();
$participant->publisherId = $stream->publisherId;
$participant->streamName = $stream->name;
$participant->userId = $userId;
if (!$participant->retrieve()) {
throw new Q_Exception_MissingRow(array('table' => 'participant', 'criteria' => "userId = {$userId}, publisherId = {$stream->publisherId}, name = {$stream->name}"));
}
// Remove from participant list
if ($participant->state === 'left') {
return false;
}
$participant->state = 'left';
if (!$participant->save()) {
return false;
}
Q_Utils::sendToNode(array("Q/method" => "Streams/Stream/leave", "participant" => Q::json_encode($participant->toArray()), "stream" => Q::json_encode($stream->toArray())));
// Post Streams/leave message to the stream
$stream->post($userId, array('type' => 'Streams/leave'), true);
// Now post Streams/left message to Streams/participating
Streams_Message::post($userId, $userId, 'Streams/participating', array('type' => 'Streams/left', 'content' => '', 'instructions' => Q::json_encode(array('publisherId' => $stream->publisherId, 'streamName' => $stream->name))), true);
return true;
}
/**
* Create or update subscription
*/
function Streams_subscription_put($params)
{
$items = array();
$subscribed = 'no';
$updateTemplate = true;
$streamName = Streams::requestedName();
$publisherId = Streams::requestedPublisherId(true);
$user = Users::loggedInUser(true);
extract($_REQUEST);
$items = json_decode($items, true);
$stream = Streams::fetchOne($user->id, $publisherId, $streamName);
if (!$stream) {
throw new Q_Exception_MissingRow(array('table' => 'stream', 'criteria' => compact('publisherId', 'streamName')));
}
$rules = Streams_Rule::select('*')->where(array('ofUserId' => $user->id, 'publisherId' => $publisherId, 'streamName' => $streamName))->fetchDbRows(null, '', 'ordinal');
$types = Q_Config::get('Streams', 'types', $stream->type, 'messages', array());
if ($subscribed !== 'no') {
// update rules
while ($item = array_pop($items)) {
// join "grouped" message types to $items
foreach ($types as $type => $msg) {
if ($msg['title'] == $item['filter']->labels and $type != $item['filter']->types) {
$items[] = (object) array('deliver' => $item->deliver, 'filter' => array('types' => $type, 'labels' => $msg['title'], 'notifications' => $item['filter']->notifications));
}
}
if (!($rule = array_pop($rules))) {
$rule = new Streams_Rule();
$rule->ofUserId = $user->id;
$rule->publisherId = $publisherId;
$rule->streamName = $streamName;
$rule->relevance = 1;
}
$rule->filter = Q::json_encode($item['filter']);
$rule->deliver = Q::json_encode($item['deliver']);
$rule->save();
}
}
foreach ($rules as $rule) {
$rule->remove();
}
$streams_subscription = new Streams_Subscription();
$streams_subscription->streamName = $streamName;
$streams_subscription->publisherId = $publisherId;
$streams_subscription->ofUserId = $user->id;
$streams_subscription->filter = Q::json_encode(array());
$streams_subscription->retrieve();
$streams_participant = new Streams_Participant();
$streams_participant->publisherId = $publisherId;
$streams_participant->streamName = $streamName;
$streams_participant->userId = $user->id;
$streams_participant->state = 'participating';
$streams_participant->reason = '';
$streams_participant->retrieve();
$streams_participant->subscribed = $subscribed;
$streams_participant->save();
if ($subscribed === 'yes') {
$stream->subscribe(array('skipRules' => true));
} else {
$stream->unsubscribe();
}
}
/**
* Assigns unique id to 'token' field if not set
* Saves corresponding row in Streams_Invited table
* Inserting a new invite affects corresponding row in Streams_Participant table
* @method beforeSave
* @param {array} $modifiedFields
* The fields that have been modified
* @return {array}
*/
function beforeSave($modifiedFields)
{
if (!$this->retrieved) {
if (!isset($modifiedFields['token'])) {
$this->token = $modifiedFields['token'] = self::db()->uniqueId(self::table(), 'token', array('length' => Q_Config::get('Streams', 'invites', 'tokens', 'length', 16), 'characters' => Q_Config::get('Streams', 'invites', 'tokens', 'characters', 'abcdefghijklmnopqrstuvwxyz')));
}
$p = new Streams_Participant();
$p->publisherId = $modifiedFields['publisherId'];
$p->streamName = $modifiedFields['streamName'];
$p->userId = $modifiedFields['userId'];
if (!$p->retrieve()) {
$p->state = 'invited';
$p->reason = '';
$p->save();
}
}
if (array_key_exists('state', $modifiedFields) or array_key_exists('expireTime', $modifiedFields)) {
$invited = new Streams_Invited();
$invited->userId = $this->userId;
// shouldn't change
$invited->token = $this->token;
// shouldn't change
if (array_key_exists('state', $modifiedFields)) {
$invited->state = $modifiedFields['state'];
}
if (array_key_exists('expireTime', $modifiedFields)) {
$invited->expireTime = $modifiedFields['expireTime'];
}
$invited->save(true);
}
return parent::beforeSave($modifiedFields);
}
