static function getStream($tag, $offset = 0, $limit = 20)
{
$ids = Notice::stream(array('Notice_tag', '_streamDirect'), array($tag), 'notice_tag:notice_ids:' . common_keyize($tag), $offset, $limit);
return Notice::getStreamByIds($ids);
}
function getNotices($offset, $limit, $since_id = null, $max_id = null)
{
$ids = Notice::stream(array($this, '_streamDirect'), array(), 'user_group:notice_ids:' . $this->id, $offset, $limit, $since_id, $max_id);
return Notice::getStreamByIds($ids);
}
/**
* Wrapper for Inbox::stream() and Notice::getStreamByIds() returning
* additional items up to the limit if we were short due to deleted
* notices still being listed in the inbox.
*
* The fast path (when no items are deleted) should be just as fast; the
* offset parameter is applied *before* lookups for maximum efficiency.
*
* This means offset-based paging may show duplicates, but similar behavior
* already exists when new notices are posted between page views, so we
* think people will be ok with this until id-based paging is introduced
* to the user interface.
*
* @param int $user_id
* @param int $offset skip past the most recent N notices (after since_id checks)
* @param int $limit
* @param mixed $since_id return only notices after but not including this id
* @param mixed $max_id return only notices up to and including this id
* @param mixed $own ignored?
* @return array of Notice objects
*
* @todo consider repacking the inbox when this happens?
* @fixme reimplement $own if we need it?
*/
function streamNotices($user_id, $offset, $limit, $since_id, $max_id, $own = false)
{
$ids = self::stream($user_id, $offset, self::MAX_NOTICES, $since_id, $max_id, $own);
// Do a bulk lookup for the first $limit items
// Fast path when nothing's deleted.
$firstChunk = array_slice($ids, 0, $limit);
$notices = Notice::getStreamByIds($firstChunk);
$wanted = count($firstChunk);
// raw entry count in the inbox up to our $limit
if ($notices->N >= $wanted) {
return $notices;
}
// There were deleted notices, we'll need to look for more.
assert($notices instanceof ArrayWrapper);
$items = $notices->_items;
$remainder = array_slice($ids, $limit);
while (count($items) < $wanted && count($remainder) > 0) {
$notice = Notice::staticGet(array_shift($remainder));
if ($notice) {
$items[] = $notice;
} else {
}
}
return new ArrayWrapper($items);
}
function repeatsOfMe($offset = 0, $limit = 20, $since_id = null, $max_id = null)
{
$ids = Notice::stream(array($this, '_repeatsOfMeDirect'), array(), 'user:repeats_of_me:' . $this->id, $offset, $limit, $since_id, $max_id);
return Notice::getStreamByIds($ids);
}
function getNotices($offset = 0, $limit = NOTICES_PER_PAGE, $since_id = 0, $max_id = 0)
{
// XXX: I'm not sure this is going to be any faster. It probably isn't.
$ids = Notice::stream(array($this, '_streamDirect'), array(), 'profile:notice_ids:' . $this->id, $offset, $limit, $since_id, $max_id);
return Notice::getStreamByIds($ids);
}
function repeatStream($limit = 100)
{
$cache = common_memcache();
if (empty($cache)) {
$ids = $this->_repeatStreamDirect($limit);
} else {
$idstr = $cache->get(common_cache_key('notice:repeats:' . $this->id));
if ($idstr !== false) {
$ids = explode(',', $idstr);
} else {
$ids = $this->_repeatStreamDirect(100);
$cache->set(common_cache_key('notice:repeats:' . $this->id), implode(',', $ids));
}
if ($limit < 100) {
// We do a max of 100, so slice down to limit
$ids = array_slice($ids, 0, $limit);
}
}
return Notice::getStreamByIds($ids);
}
/**
* Stream of notices linking to this URL
*
* @param integer $offset Offset to show; default is 0
* @param integer $limit Limit of notices to show
* @param integer $since_id Since this notice
* @param integer $max_id Before this notice
*
* @return array ids of notices that link to this file
*/
function stream($offset = 0, $limit = NOTICES_PER_PAGE, $since_id = 0, $max_id = 0)
{
$ids = Notice::stream(array($this, '_streamDirect'), array(), 'file:notice-ids:' . $this->url, $offset, $limit, $since_id, $max_id);
return Notice::getStreamByIds($ids);
}
