$err = substr("Failed Delete {$target_table} refs {$source_table}:{$source_col}", 0, 64);
$trigger .="
SET mid = 0;
- IF OLD.id > 0 THEN
+ IF OLD.{$target_col} > 0 THEN
SELECT count(*) into mid FROM {$source_table} WHERE {$source_col} = OLD.{$target_col} LIMIT 1;
IF mid > 0 THEN
UPDATE `$err` SET x = 1;