CTasksReportHelper::appendDateTimeUserFieldsAsShort

static function appendDateTimeUserFieldsAsShort(BitrixMainEntityBase $entity)
{
	/** @global CDatabase $DB */
	global $DB;

	// Advanced fields for datetime user fields
	$dateFields = array();
	foreach($entity->getFields() as $field)
	{
		if ($field instanceof BitrixMainEntityExpressionField)
		{
			$arUF = self::detectUserField($field);
			if ($arUF['isUF'])
			{
				$ufDataType = self::getUserFieldDataType($arUF);
				if ($ufDataType === 'datetime' && $arUF['ufInfo']['MULTIPLE'] !== 'Y')
				{
					$dateFields[] = array(
						'def' => array(
							'data_type' => 'datetime',
							'expression' => array(
								$DB->DatetimeToDateFunction('%s'), $arUF['ufInfo']['FIELD_NAME']
							)
						),
						'name' => $arUF['ufInfo']['FIELD_NAME'].self::UF_DATETIME_SHORT_POSTFIX
					);
				}
			}
		}
	}
	foreach ($dateFields as $fieldInfo)
	{
		if (!$entity->hasField($fieldInfo['name']))
		{
			$entity->addField($fieldInfo['def'], $fieldInfo['name']);
		}
	}
}