Magento

change price data type in DB by exec these sql statement

 UPDATE `eav_attribute` SET `attribute_model` = NULL ,
 `backend_model` = '',
 `backend_type` = 'int',
 `backend_table` = '',
 `frontend_model` = '',
 `frontend_input` = 'price',
 `frontend_label` = 'price',
 `frontend_class` = '',
 `source_model` = '',
 `default_value` = '' WHERE `attribute_id` =99 LIMIT 1 ;

then exec

insert into catalog_product_entity_int (entity_type_id, attribute_id,   store_id, entity_id, value)

select entity_type_id, attribute_id, store_id, entity_id, value from catalog_product_entity_decimal where attribute_id=99;

change currencyFormat in /lib/zend/locale/data/fa.xml to <currencyFormats>

          <currencyFormatLength>
              <currencyFormat>
                  <pattern references="R046">#,##0 ¤;'‪'-#,##0'‬' ¤</pattern>
              </currencyFormat>
          </currencyFormatLength>
      </currencyFormats>

delete from catalog_product_entity_decimal where attribute_id=99; in /lib/zend/currency.php line 63: change

      'precision' => 2,               // precision for currency

to

      'precision' => 0,               // precision for currency