/**
* @param mixed $id
* @return WeLearn_DTO_IDTO
*/
public function remover($id)
{
$UUID = CassandraUtil::import($id);
$paginaRemovida = $this->recuperar($id);
$aulaUUID = CassandraUtil::import($paginaRemovida->getAula()->getId());
$this->_cf->remove($UUID->bytes);
$this->_paginaPorAulaCF->remove($aulaUUID->bytes, array($paginaRemovida->getNroOrdem()));
$curso = $paginaRemovida->getAula()->getModulo()->getCurso();
$cursoUUID = CassandraUtil::import($curso->getId());
$this->_contadorCF->add($this->_keyContador, $cursoUUID->bytes, -1);
$controlePaginaDao = WeLearn_DAO_DAOFactory::create('ControlePaginaDAO', null, false);
$idsAlunos = WeLearn_DAO_DAOFactory::create('AlunoDAO')->recuperarTodasIdsPorCurso($curso);
for ($i = 0; $i < count($idsAlunos); $i++) {
$cfKey = $idsAlunos[$i] . '::' . $curso->getId();
$controlePaginaDao->decrementarPaginasVistas($cfKey);
}
$paginaRemovida->setPersistido(false);
return $paginaRemovida;
}
/**
* Increments or decrements a counter.
*
* `value` should be an integer, either positive or negative, to be added
* to a counter column. By default, `value` is 1.
*
* This method is not idempotent. Retrying a failed add may result
* in a double count. You should consider using a separate
* ConnectionPool with retries disabled for column families
* with counters.
*
* Only available in Cassandra 0.8.0 and later.
*
* @param string $key the row to insert or update the columns in
* @param mixed $column the column name of the counter
* @param int $value the amount to adjust the counter by
* @param mixed $superColumn the super column to use if this is a
* super column family
* @param cassandra_ConsistencyLevel $writeConsistencyLevel affects the guaranteed
* number of nodes that must respond before the operation returns
* @param ECassandraConnection $cassandraConnection a separate connection pool to execute this kind of query.
* If this value is left null, the current pool will be used.
*/
public function add($key, $column, $value = 1, $superColumn = null, $writeConsistencyLevel = null, $cassandraConnection = null)
{
if (empty($this->_columnFamily)) {
$this->init();
}
// If no separate connection is specified, use the current connection.
if ($cassandraConnection === null) {
$cassandraConnection = $this;
$columnFamily = $this->_columnFamily;
} else {
// Create a new ColumnFamily instance to execute this query.
$columnFamily = new ColumnFamily($cassandraConnection->getConnectionPool(), $this->cfName());
$shouldDispose = true;
}
$returnValue = $columnFamily->add($key, $column, $value, $superColumn, $writeConsistencyLevel);
// If the column family is newly created, dispose it.
if (isset($shouldDispose) && $shouldDispose === true) {
$columnFamily = null;
}
return $returnValue;
}
}
$keyspace_name = '';
if (isset($_POST['keyspace_name'])) {
$keyspace_name = $_POST['keyspace_name'];
}
$columnfamily_name = '';
if (isset($_POST['columnfamily_name'])) {
$columnfamily_name = $_POST['columnfamily_name'];
}
try {
$pool = new ConnectionPool($keyspace_name, $cluster_helper->getArrayOfNodesForCurrentCluster(), null, 5, 5000, 5000, 10000, $cluster_helper->getCredentialsForCurrentCluster());
$column_family = new ColumnFamily($pool, $columnfamily_name);
if ($action == 'dec') {
$value *= -1;
}
$column_family->add($key, $column, $value, $super_column);
$new_value = $column_family->get($key);
if ($column_family->cfdef->column_type == 'Super') {
$new_value = $new_value[$super_column][$column];
} else {
$new_value = $new_value[$column];
}
redirect('counters.php?keyspace_name=' . $keyspace_name . '&columnfamily_name=' . $columnfamily_name . '&new_value=' . $new_value);
} catch (Exception $e) {
$_SESSION['message'] = $e->getMessage();
redirect('counters.php?keyspace_name=' . $keyspace_name . '&columnfamily_name=' . $columnfamily_name . '&error=1');
}
}
if (!$included_header) {
echo getHTML('header.php');
if (!$is_valid_action) {
/**
* @param string $chaveParticipacaoCurso
*/
public function decrementarPaginasVistas($chaveParticipacaoCurso)
{
$this->_contadorCF->add($this->_keyContador, $chaveParticipacaoCurso, -1);
}
