public function getDefinition($modelName = null, $reset = false)
{
// we want to use a static variable here for performance
// reasons, but we also need a way to reliably cope when
// (not if) the master list of definitions is emptied
static $oDef = null;
// special case
if ($reset) {
$oDef = null;
return;
}
if ($modelName == null) {
$modelName = get_class($this);
}
if ($oDef === null) {
$oDef = DataModel_Definitions::get($modelName);
DataModel_Definitions::registerCache($this, $modelName);
}
return $oDef;
}
