+ $sql = "UPDATE `".TB_PREF.($trans_type==ST_PURCHORDER ? 'purch_orders' : 'supp_trans')."` trans,
+ (SELECT person_id, sum(amt) amt from ".TB_PREF."supp_allocations
+ WHERE person_id=".db_escape($person_id)." AND ((trans_type_to=".db_escape($trans_type)." AND trans_no_to=".db_escape($trans_no).")
+ OR (trans_type_from=".db_escape($trans_type)." AND trans_no_from=".db_escape($trans_no)."))) allocated
+ SET
+ trans.alloc=IFNULL(allocated.amt, 0)
+ WHERE trans.supplier_id=person_id AND " . ($trans_type==ST_PURCHORDER ?
+ "trans.order_no=".db_escape($trans_no)
+ : "trans.type=".db_escape($trans_type)." AND trans.trans_no=".db_escape($trans_no));