GetPropertyBaseType: Bitrix method

      
<?php 
//  GetPropertyBaseType()
//  /dist/bitrix/modules/bizproc/classes/general/activity.php:168

    
public function GetPropertyBaseType($propertyName)
    {
        
$rootActivity $this->GetRootActivity();
        return 
$rootActivity->arFieldTypes[$rootActivity->arPropertiesTypes[$propertyName]["Type"]]["BaseType"];
    }