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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
* @category Piwik
* @package Piwik
*/
use Piwik\Common;
/**
* The DataTable_Manager registers all the instanciated DataTable and provides an
* easy way to access them. This is used to store all the DataTable during the archiving process.
* At the end of archiving, the ArchiveProcessor will read the stored datatable and record them in the DB.
*
* @package Piwik
* @subpackage Piwik_DataTable
*/
class Piwik_DataTable_Manager
{
static private $instance = null;
/**
* Returns instance
*
* @return Piwik_DataTable_Manager
*/
static public function getInstance()
{
if (self::$instance == null) {
self::$instance = new self;
}
return self::$instance;
}
/**
* Array used to store the DataTable
*
* @var array
*/
private $tables = array();
/**
* Id of the next inserted table id in the Manager
* @var int
*/
protected $nextTableId = 1;
/**
* Add a DataTable to the registry
*
* @param Piwik_DataTable $table
* @return int Index of the table in the manager array
*/
public function addTable($table)
{
$this->tables[$this->nextTableId] = $table;
$this->nextTableId++;
return $this->nextTableId - 1;
}
/**
* Returns the DataTable associated to the ID $idTable.
* NB: The datatable has to have been instanciated before!
* This method will not fetch the DataTable from the DB.
*
* @param int $idTable
* @throws Exception If the table can't be found
* @return Piwik_DataTable The table
*/
public function getTable($idTable)
{
if (!isset($this->tables[$idTable])) {
throw new Exception(sprintf("This report has been reprocessed since your last click. To see this error less often, please increase the timeout value in seconds in Settings > General Settings. (error: id %s not found).", $idTable));
}
return $this->tables[$idTable];
}
/**
* Returns the latest used table ID
*
* @return int
*/
public function getMostRecentTableId()
{
return $this->nextTableId - 1;
}
/**
* Delete all the registered DataTables from the manager
*/
public function deleteAll($deleteWhenIdTableGreaterThan = 0)
{
foreach ($this->tables as $id => $table) {
if ($id > $deleteWhenIdTableGreaterThan) {
$this->deleteTable($id);
}
}
if ($deleteWhenIdTableGreaterThan == 0) {
$this->tables = array();
$this->nextTableId = 1;
}
}
/**
* Deletes (unsets) the datatable given its id and removes it from the manager
* Subsequent get for this table will fail
*
* @param int $id
*/
public function deleteTable($id)
{
if (isset($this->tables[$id])) {
Common::destroy($this->tables[$id]);
$this->setTableDeleted($id);
}
}
/**
* Remove the table from the manager (table has already been unset)
*
* @param int $id
*/
public function setTableDeleted($id)
{
$this->tables[$id] = null;
}
/**
* Debug only. Dumps all tables currently registered in the Manager
*/
public function dumpAllTables()
{
echo "<hr />Piwik_DataTable_Manager->dumpAllTables()<br />";
foreach ($this->tables as $id => $table) {
if (!($table instanceof Piwik_DataTable)) {
echo "Error table $id is not instance of datatable<br />";
var_export($table);
} else {
echo "<hr />";
echo "Table (index=$id) TableId = " . $table->getId() . "<br />";
echo $table;
echo "<br />";
}
}
echo "<br />-- End Piwik_DataTable_Manager->dumpAllTables()<hr />";
}
}
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