public function _leadEmail($from, $to, $action)
{
switch ($action) {
case static::ACT_CONVERT_TO_OBJECT:
/* @var $from ProjectEntity */
$to->leadEmail = $from->getProperty(ProjectPropertyEntity::NAME_LEAD_EMAIL);
break;
case static::ACT_CONVERT_TO_ENTITY:
/* @var $to ProjectEntity */
break;
case static::ACT_GET_FILTER_CRITERIA:
return [[]];
}
}