Question: any datomic experts around here? I get an exception on a transact and I have no clue how to debug it or should I ask #datomic?

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2017-11-16 09:37:02

Found 15 possible answers.

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conan 2017-11-16 10:16:42 you'll tend to have to wait for the afternoon for help from over the pond
maleghast 2017-11-16 10:20:27 Bore da wishes that he was a datomic expert
thomas 2017-11-16 10:32:24 found the problem of my datomic issue. see #datomic for more details and I agree @maleghast I wish I also knew more about Datomic.. I kinda know what it does conceptually... but no idea how to actually use it and what it all means. (and it wasn't a datomic issue anyway)
maleghast 2017-11-16 11:04:11 @thomas - I am in the same boat. I know about some cool things it can do, but rather expect that I need to have a baptism of fire (i.e. do something with it, make lots of mistakes, learn the hard way), or work with / along side someone generous of spirit who has already got the knowledge (however they got it) and learn from them. There do not appear to be any good books, and online tutorials I have found suffer dreadfully from the “toy app” problem.
thomas 2017-11-16 11:04:57 that sounds like the plan indeed!!
maleghast 2017-11-16 11:05:24 Just need my CEO to get the damn funding in… :wink:
thomas 2017-11-16 11:05:37 I never got round to sit down and just do it... (like so many things...)
maleghast 2017-11-16 11:09:38 ’tis the way the cookie crumbles, sometimes… [Idiomatic / Clojuric Question] - I have a vector of maps, and I want to know how many have a certain value for a certain key. I know I can do this with a reduce, but is there a better / snappier way of doing this? (I am trying to get better at being idiomatic / thinking like a Clojurist) (or if our funding comes in and we have operating money and stuff, there are clear applications for it in what I am doing now) I have two side-projects that I am not doing anything with properly and one of them would use Datomic, so maybe, one day…
otfrom 2017-11-16 13:01:00 what's the preferred way nowadays to integrate test.check w/with clojure.test?/
dominicm 2017-11-16 13:06:23 chicken blood and a red moon
reborg 2017-11-16 13:14:10 @maleghast how big is the vector?
dominicm 2017-11-16 13:14:48 My brain goes to filter and count tbh @maleghast (count (filter #(= :certainly (:key %)) xs))
maleghast 2017-11-16 13:16:19 @dominicm - I like the look of that - seems less heavy-handed than doing a reduce with an incrementing accumulator.
dominicm 2017-11-16 13:16:34 I use reduce very rarely
maleghast 2017-11-16 13:16:53 @reborg - Right now, in development it’s small, but it could reasonable go into the hundreds, perhaps thousand+ maps. @dominicm - I am SURE I use it too much, i.e. when there are better / simpler solutions that I don’t realise I have at my disposal. :slightly_smiling_face:

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