/**
* returns all avaliable ids for a specific model type
*
* @param string $model_name
* @return array
* @author Craig Ulliott
*/
function get_model_ids($model_name)
{
// build an empty of this model type
$m = m($model_name);
// query to get all the ids
$result = DB::getArray('select `' . $m->getPrimaryKey() . '` from `' . $m->getDatabase() . '`.`' . $m->getTable() . '`');
// simplify this nested array
return array_suck($result);
}
/**
* Return an array of ids for users that are friends with the given user
*
* @param User $user
* @return array
*/
public static function getFriendIDs(UserModel $user)
{
// need a session user for this function
if (!($session_user = self::$user)) {
return array();
}
// build unique cache key (method, owner_id, viewer_id)
$cache_key = self::buildCacheKey(__METHOD__, $user->getID(), $session_user->getID());
// if friends data is already in the cache, return it straight away
if ($friendIDs = Cache::get($cache_key)) {
return $friendIDs;
}
// this will hold the friend ids
$friendIDs = array();
// this holds the FB profile data
$fb_data = array();
// we may need to hit FB twice for the friends list if the session is expired
$results = self::tryAndRetry('_getFriends', array($user));
// process results
if ($results) {
foreach ($results as $row) {
// if we didnt get a name then skip it, user probably has privacy settings that make the data unineresting on the site
if (isset($row['name']) && $row['name']) {
$fb_data[$row['uid']] = $row;
}
}
}
// if we found friends, find the friends with wib
if ($fb_data) {
// convert network ids to person ids and build the user objects
$uids = array_keys($fb_data);
$sql = 'SELECT personID FROM wib_person.facebook WHERE facebookID IN (' . implode(',', $uids) . ')';
$rows = DB::getArray($sql, __LINE__, __FILE__);
$friendIDs = array_suck($rows);
}
// if friendIDs data isn't empty, cache it
if (!empty($friendIDs)) {
Cache::add($cache_key, $friendIDs, 1, 1, FB_CACHE_DURATION);
}
return $friendIDs;
}