/**
* A static method implementing the Singleton pattern, persisting in between sessions
*
* @param boolean $forceCreate Forcibly create a new instance of the object
* @param boolean $OnlyDBMode Create an object that only runs on DB mode.
* @return JoomlapackCUBE
* @static
*/
function &getInstance($forceCreate = false, $OnlyDBMode = false)
{
static $instance;
if (is_object($instance) && !$forceCreate) {
JoomlapackLogger::WriteLog(_JP_LOG_DEBUG, "JoomlapackCUBE::getInstance - Object in memory (OK)");
// An object already exists in memory. Return this.
return $instance;
} else {
if ($forceCreate) {
// If we are forced to create, we fool the code below by making it think that the CUBE
// doesn't exist in the database.
JoomlapackLogger::WriteLog(_JP_LOG_DEBUG, "JoomlapackCUBE::getInstance - Forced creation, removing CUBEObject");
$count = -1;
JoomlapackTables::DeleteVar('CUBEObject');
} else {
// Otherwise, look into the database for a stored CUBE object
$count = JoomlapackTables::CountVar('CUBEObject');
}
if ($count != 1) {
// No stored object, we are forced to create a fresh object or something really
// odd is going on with MySQL!
JoomlapackLogger::WriteLog(_JP_LOG_DEBUG, "JoomlapackCUBE::getInstance - Not found in database, creating new instance");
$instance = new JoomlapackCUBE($OnlyDBMode);
return $instance;
} else {
// Load from db
JoomlapackLogger::WriteLog(_JP_LOG_DEBUG, "JoomlapackCUBE::getInstance - Loading from database");
// Get the includes first!
JoomlapackCUBE::retrieveEngineIncludes();
// Then load the object
$serialized = JoomlapackTables::ReadVar('CUBEObject');
$instance = unserialize($serialized);
return $instance;
}
}
}
