Question

Starting with a MySQL trigger like this:

delimiter #

create trigger comments_after_ins_trig after insert on comments
for each row
begin
  insert into comment_types (comment, user_id) values (new.comment, new.user_id);
end#

Let’s say I wanted to split the inserts into different table, for instance if comment contains a vulgar word (LOCATE('sh**', comment) > 0), instead of comment_types I want to insert into a table called vulgar_comments, if the comment contains the words “thanks” or “nice” insert into nice_comments, etc. Basically how do I make the table name to insert into variable for that trigger?

Answer 1

Try this one, I have tested this and this works on my end:

delimiter $$
drop trigger if exists `comments_after_ins_trig`$$
create trigger `comments_after_ins_trig` after insert on comments
for each row
begin
 if(locate("sh**", new.comment) > 0) then
   insert into vulgar_comments(comment, user_id) values (new.comment, new.user_id);
 else
   insert into comment_types (comment, user_id) values (new.comment, new.user_id);
 end if;
end$$

delimiter ;