Update in mysql trigger not working - mysql

Question

I'm creating a trigger to execute after an insert is done into my checkin table but my update statement is not working
DELIMITER $$
DROP TRIGGER IF EXISTS checkins_AINS$$
CREATE TRIGGER `checkins_AINS` AFTER INSERT ON `checkins` FOR EACH ROW
BEGIN
DECLARE client_id INT;
DECLARE duplicate_record INTEGER DEFAULT 0;
DECLARE bpoints INT;
DECLARE business_id INT;
DECLARE CONTINUE HANDLER FOR 1062 SET duplicate_record = 1;
SELECT checkinPoints, id INTO bpoints, business_id FROM businesses WHERE id = new.venue_id;
INSERT INTO clients_checkins_summary(client_id, venue_id, first_checkin, last_checkin,visits)
VALUES(new.client_id, new.venue_id, new.createAt, new.createAt,1);
INSERT INTO clients_points_summary(client_id, business_id,current_points)
VALUES(new.client_id, business_id,bpoints);
IF duplicate_record = 1
THEN
UPDATE clients_checkins_summary
SET last_checkin = new.createAt,
visits = visits + 1
WHERE client_id = new.client_id and venue_id = new.venue_id;
UPDATE clients_points_summary
SET current_points = current_points + bpoints
WHERE client_id = new.client_id and business_id = business_id;
END IF;
END$$
DELIMITER ;
Inserting:
insert into checkins(client_id,venue_id,points,createAt,updateAt)
values (52,19,1,now(),now());
for the first time works fine but when the case of update is trigger is entering into the if but is not update the value.
I trace the variables into a table and all the values are correct but update is not been updating anything.
I missing something?

Answer 1

am I missing something?
Possibly this
UPDATE clients_points_summary
SET current_points = current_points + bpoints
WHERE client_id = new.client_id and business_id = business_id;
The problem here is that your local variable business_id and the column name clients_points_summary.business_id are ambiguous. You could disambiguate as follows:
UPDATE clients_points_summary cps
SET cps.current_points = cps.current_points + bpoints
WHERE cps.client_id = new.client_id and cps.business_id = business_id;