Call procedure in mysql - mysql

Question

I have a table , that store friendship like :
Friend : f_id , f_userid1 , f_userid2 , f_status .
If user a is friend with user b , I only insert one row :
f_userid1 = a , f_userid2 = b
I want to check if I have this friendship row , change the status to zero , I have created a procedure for it :
BEGIN
DECLARE fid INT(15);
-- check for first one
SELECT f_id INTO fid FROM f WHERE
f_userid1 = #userid1
AND f_userid2 = #userid2;
SET oup = 1;
IF(fid = 0) THEN
SET oup = 2;
-- check for SECOUND one
SELECT f_id INTO fid FROM f WHERE f_userid2 = #userid1 AND f_userid1 = #userid2;
END IF;
-- if statment
IF(fid > 0) THEN
SET oup = 3;
-- we need to update the exiting request
UPDATE f SET f_userid1 = #userid1 , f_userid2 = #userid2 , f_status = 0 WHERE f_id = #fid ;
END IF;
END
I have a row like here before
f_id = 1 , f_userid1 = a . f_userid2 = b , f_status = 1;
It runs successfully , but no row affacted !
I have added output and It only return 1 ;
where is my problem ?

Answer 1

Why not write it in a single query?
UPDATE f
SET f_status = 0
WHERE ( f_userid1 = #userid1 AND f_userid2 = #userid2 )
OR ( f_userid1 = #userid2 AND f_userid2 = #userid1 );