/**
* Change user level to higher one.
*
* <code>
* $context = "com_user.registration";
*
* $keys = array(
* "id" => 1,
* "group_id" => 2
* );
*
* // Create user badge object based.
* $level = new Gamification\Level\Level(\JFactory::getDbo());
* $level->load($keys);
*
* $levelManager = new Gamification\User\Level\LevelManager(\JFactory::getDbo());
* $levelManager->setLevel($level);
*
* if ($levelManager->give($context, $userId, $options)) {
* // ...
* }
* </code>
*
* @param string $context
* @param int $userId
* @param array $options
*
* @throws \UnexpectedValueException
* @throws \RuntimeException
* @throws \InvalidArgumentException
*
* @return null|Level
*/
public function levelUp($context, $userId, array $options = array())
{
if (!$this->level instanceof BasicLevel) {
throw new \UnexpectedValueException('It is missing user level object.');
}
$keys = array('user_id' => $userId, 'group_id' => $this->level->getGroupId());
$userLevel = new Level(\JFactory::getDbo());
$userLevel->load($keys);
// Implement JObservableInterface: Pre-processing by observers
$this->observers->update('onBeforeLevelUp', array($context, &$userLevel, &$options));
if (!$userLevel->getId()) {
$keys['level_id'] = $this->level->getId();
$userLevel->startLeveling($keys);
} else {
if ((int) $this->level->getId() === (int) $userLevel->getLevelId()) {
return null;
}
// Change the current rank ID with another one.
$userLevel->setLevelId($this->level->getId());
$userLevel->store();
}
// Implement JObservableInterface: Post-processing by observers
$this->observers->update('onAfterLevelUp', array($context, &$userLevel, &$options));
return $userLevel;
}
/**
* Prepare current and next levels.
*
* @throws \RuntimeException
*/
public function prepareData()
{
$userPoints = (int) $this->points->getPointsNumber();
// Get current level.
$keys = array('user_id' => $this->points->getUserId(), 'group_id' => $this->points->getPoints()->getGroupId());
$userLevel = new UserLevel($this->db);
$userLevel->load($keys);
$this->currentUnit = $userLevel->getLevel();
// Get incoming level.
$query = $this->db->getQuery(true);
$query->select('a.id, a.title, a.value, a.published, a.points_id, a.points_number, a.rank_id, a.group_id')->from($this->db->quoteName('#__gfy_levels', 'a'))->where('a.points_id = ' . (int) $this->points->getPointsId())->where('a.published = ' . (int) Constants::PUBLISHED)->where('a.points_number > ' . $userPoints)->order('a.points_number ASC');
$this->db->setQuery($query, 0, 1);
$result = (array) $this->db->loadAssoc();
if (count($result) > 0) {
$this->nextUnit = new BasicLevel($this->db);
$this->nextUnit->bind($result);
$this->percentageCurrent = (int) MathHelper::calculatePercentage($userPoints, $this->nextUnit->getPointsNumber());
$this->percentageNext = 100 - $this->percentageCurrent;
} else {
$this->percentageCurrent = 100;
$this->percentageNext = 100;
}
}
protected function prepareLevelObject($levelId)
{
if ($levelId > 0) {
$key = StringHelper::generateMd5Hash(BasicLevel::class, $levelId);
if ($this->container !== null) {
if ($this->container->exists($key)) {
$this->level = $this->container->get($key);
} else {
$this->level = new BasicLevel($this->db);
$this->level->setContainer($this->container);
$this->level->load($levelId);
$this->container->set($key, $this->level);
}
} else {
$this->level = new BasicLevel($this->db);
$this->level->load($levelId);
}
}
}
