- CONSTRAINT `origin` FOREIGN KEY (`source`) REFERENCES `players` (`id`),
- CONSTRAINT `addressable` FOREIGN KEY (`destination`) REFERENCES `players` (`id`),
+ CONSTRAINT `origin` FOREIGN KEY (`source`) REFERENCES `players` (`id`)
+ ON DELETE CASCADE,
+ CONSTRAINT `addressable` FOREIGN KEY (`destination`) REFERENCES `players` (`id`)
+ ON DELETE CASCADE,