Show HN: O'Doyle Rules – a new rules engine for Clojure

Show HN: O'Doyle Rules – a new rules engine for Clojure(github.com)

100 points by gw 5 years ago | 18 comments

harperlee 5 years ago |

I like it so much when a project tells you its limitations in the front page, and compares itself with (and points to) possible alternatives in a useful fashion; it should be standard! But is always awesome! THANK YOU!!

capableweb 5 years ago |

Best video to see how this rules engine work would be to watch the following video: https://www.youtube.com/watch?v=6_mDiH5_hSc

Zach shows how a simple RPG game is implemented with play-cljc and odoyle-rules

stingraycharles 5 years ago | |

Thanks for sharing, I’m ashamed to admit that I never really “got” these rule engines, but seeing this example finally made things click for me.

Am I correct that there’s a very large overlap between rule engines and workflow engines, and one could use a rule engine like this to implement workflows?

adamkl 5 years ago | | |

I have been playing with the idea that a rule engine would work well with a state machine.

State machine manages the workflow, rule engine determines which transitions to execute?

Maybe that is overkill, but I've been trying to build a model in my head on how to model complex business processes.

kyleblarson 5 years ago |

I hope I'm not the only one here old enough to get the reference in the engine's name.

optimuspaul 5 years ago | |

I must be too old because I didn't get it.

tmh88j 5 years ago | | |

It's from the movie Billy Madison. There was a family of bullies with the last name of O'Doyle, and everytime they picked on someone afterwards they would say "O'Doyle Rules". They eventually had an incident with a banana peel, but you'll have to watch the movie for that one ;)

athaht 5 years ago | | |

https://m.youtube.com/watch?v=XVO3NJCPIoY

neovive 5 years ago | |

You're not alone :) Now off I go to check if Billy Madison is on Netflix.

grimgrin 5 years ago | |

prob the biggest reason i don't like these type of comments is that the replies will really never be interesting. there is no way for them to be, by nature of the parent not being interesting

and i'm not even shaming you, but finally creating words for my thought when i'm irritated heh

edit: by nature of the parent comment, you are able to unfold the origin of the name (and there was no reference elsewhere). ok, fine then :P

stallmanite 5 years ago | |

You are not I assure you.

leovander 5 years ago | |

He does have drawing of O'Doyle at the top of the readme.

tyre 5 years ago | |

not at all. I'm a 90s child and found this hilarious

strontian 5 years ago |

This author is really talented and creates a lot of interesting projects. I spent some time reviewing nightcoders.net and the code quality is really impressive.

christophilus 5 years ago | |

That link is broken. I think you meant this: https://github.com/oakes/Nightcoders

And that is now a read only project. So, I guess it’s defunct.

mischov 5 years ago |

The author also has a Nim version, https://github.com/paranim/pararules