/**
* Change user rank to higher one.
*
* <code>
* $context = "com_user.registration";
*
* $keys = array(
* "id" => 1,
* "group_id" => 2
* );
*
* // Create user badge object based.
* $rank = new Gamification\Rank\Rank(\JFactory::getDbo());
* $rank->load($keys);
*
* $rankManager = new Gamification\User\Rank\RankManager(\JFactory::getDbo());
* $rankManager->setRank($rank);
*
* if ($rankManager->give($context, $userId, $options)) {
* // ...
* }
* </code>
*
* @param string $context
* @param int $userId
* @param array $options
*
* @throws \UnexpectedValueException
* @throws \RuntimeException
* @throws \InvalidArgumentException
*
* @return null|Rank
*/
public function give($context, $userId, array $options = array())
{
if (!$this->rank instanceof BasicRank) {
throw new \UnexpectedValueException('It is missing user rank object.');
}
$keys = array('user_id' => $userId, 'group_id' => $this->rank->getGroupId());
$userRank = new Rank(\JFactory::getDbo());
$userRank->load($keys);
// Implement JObservableInterface: Pre-processing by observers
$this->observers->update('onBeforeGiveRank', array($context, &$userRank, &$options));
if (!$userRank->getId()) {
// Start ranking.
$keys['rank_id'] = $this->rank->getId();
$userRank->startRanking($keys);
} else {
if ((int) $this->rank->getId() === (int) $userRank->getRankId()) {
return null;
}
// Change the current rank ID with another one.
$userRank->setRankId($this->rank->getId());
$userRank->store();
}
// Implement JObservableInterface: Post-processing by observers
$this->observers->update('onAfterGiveRank', array($context, &$userRank, &$options));
return $userRank;
}
/**
* Set Rank object.
*
* <code>
* $rankId = 1;
* $rank = new Gamification\Rank\Rank(\JFactory::getDbo());
* $rank->load($rankId);
*
* $level = new Gamification\Level\Level(\JFactory::getDbo());
* $level->setRank($rank);
* </code>
*
* @param Rank $rank
* @throws \UnexpectedValueException
* @throws \OutOfBoundsException
*
* @return self
*/
public function setRank(Rank $rank)
{
$this->rank = $rank;
if ($this->rank_id > 0 and $this->rank_id !== $rank->getId()) {
throw new \UnexpectedValueException('The points ID already exists and it does not much with new Rank object.');
}
$this->rank_id = $rank->getId();
// Add the points object in the container.
$key = StringHelper::generateMd5Hash(Points::class, $this->rank_id);
if ($this->container !== null and !$this->container->exists($key)) {
$this->container->set($key, $this->rank);
}
return $this;
}
public function isRankAchieved(Rank $rank, $userId = 0)
{
if (!$userId and $this->id > 0) {
$userId = $this->id;
}
$query = $this->db->getQuery(true);
$query->select('COUNT(*)')->from($this->db->quoteName('#__gfy_userranks', 'a'))->where('a.rank_id = ' . (int) $rank->getId())->where('a.user_id = ' . (int) $userId)->where('a.group_id = ' . (int) $rank->getGroupId());
$this->db->setQuery($query, 0, 1);
return (bool) $this->db->loadResult();
}
