workspace
stringclasses 4
values | channel
stringclasses 4
values | text
stringlengths 1
3.93k
| ts
stringlengths 26
26
| user
stringlengths 2
11
|
|---|---|---|---|---|
clojurians | clojure | the point is, we would like to log each of those actions with coresponding users | 2017-11-19T18:39:54.000112 | Logan |
clojurians | clojure | for example USER A added entity B with name C , or USER D edited entity (fields E F G) with values ( H I J) .. basicaly an activity log | 2017-11-19T18:41:12.000145 | Logan |
clojurians | clojure | that is readable for non-programmer admin user | 2017-11-19T18:41:24.000120 | Logan |
clojurians | clojure | ah got you! interesting feature. sincerely IDK. the Rails equivalent would be <https://github.com/airblade/paper_trail> which wraps every CRUD action with an object to be persisted, including a `whodunnit` column | 2017-11-19T18:44:26.000012 | Kristy |
clojurians | clojure | <https://blog.clubhouse.io/auditing-with-reified-transactions-in-datomic-f1ea30610285> | 2017-11-19T18:46:42.000105 | Kristy |
clojurians | clojure | switching to Datomic just for this might be overkill | 2017-11-19T18:46:58.000058 | Kristy |
clojurians | clojure | otherwise dunno! | 2017-11-19T18:47:06.000036 | Kristy |
clojurians | clojure | Yea .. well since I am using sqlkorma with postgres i even thought about somehow forking korma and writing this kind of logic. But it's not the clean solution im looking for. :confused: | 2017-11-19T18:49:31.000110 | Logan |
clojurians | clojure | sql log analysis? turn `INSERT into ...` text data into new data to be inserted
would seem fragile-ish to me, can be a last resource | 2017-11-19T18:51:37.000010 | Kristy |
clojurians | clojure | hi everyone, basic question about threading. Why doesnt this work
```
(-> 10
inc
dec
(fn [x] (* x x)))
```
I expected output of 100 | 2017-11-19T19:18:59.000085 | Tobie |
clojurians | clojure | ```
(-> 10
inc
dec
((fn [x] (* x x))))
``` | 2017-11-19T19:19:31.000082 | Kristy |
clojurians | clojure | as for the why... this will reveal :slightly_smiling_face:
```
(macroexpand-1 '(-> 10
inc
dec
(fn [x] (* x x))))
``` | 2017-11-19T19:21:31.000019 | Kristy |
clojurians | clojure | oh i see it now | 2017-11-19T19:24:20.000120 | Tobie |
clojurians | clojure | thanks :slightly_smiling_face: | 2017-11-19T19:24:22.000021 | Tobie |
clojurians | clojure | duh | 2017-11-19T19:24:33.000091 | Tobie |
clojurians | clojure | <@Logan> have you considered a database trigger that writes to a separate logging table on inserts and updates to specific tables? | 2017-11-19T20:25:08.000105 | Al |
clojurians | clojure | <@Al> Yes I did, but i haven't figured out how to get the current user logged in :confused: | 2017-11-19T20:46:38.000081 | Logan |
clojurians | clojure | <@Logan> Did I see you're using postgres? If so, `CURRENT_USER` should give you what you want. | 2017-11-19T20:52:50.000115 | Domingo |
clojurians | clojure | That would be SQL user, not application user. I would need to find a way to append id of current id to every SQL query for the trigger to work :confused: | 2017-11-19T20:54:38.000059 | Logan |
clojurians | clojure | And that wouldn|t be clean anyways :confused: | 2017-11-19T20:54:48.000028 | Logan |
clojurians | clojure | I'd create a wrapper to the database query functions that takes the logged in user as an argument. Use that data to log anywhere/way you want. | 2017-11-19T20:58:53.000155 | Domingo |
clojurians | clojure | Thanks. <@Kareen> <@Deborah> | 2017-11-19T21:09:54.000125 | Tari |
clojurians | clojure | <@Domingo> that actually sounds good. Are you familiar with sqlKorma ? Im wondering what would be the less possible way to wrap native sqlkorma functions for this to work.
There could for example be problem with threading macros | 2017-11-19T21:54:23.000008 | Logan |
clojurians | clojure | I haven't used Korma before. At a very brief glance, it's too magic for me. I pretty much just use clojure.java.jdbc and write my sql directly. | 2017-11-19T21:59:40.000029 | Domingo |
clojurians | clojure | Oh, alright .. Well, i came to clojure from OOP languages with frameworks like SpringMVC .. so at least a querybuilder is kinda a must for me :smile: | 2017-11-19T22:05:31.000171 | Logan |
clojurians | clojure | this may be a good time for a simple macro. `defquery` that takes a user and then just passes everything through to a defn that includes whatever logging form you normally do. | 2017-11-19T22:13:08.000153 | Willow |
clojurians | clojure | Oh , that might actualy work. | 2017-11-19T22:21:41.000135 | Logan |
clojurians | clojure | Hello, are there any clojure libraries that play nicely with bitcoin, or any bitcoin exchanges powered by clojure? | 2017-11-19T22:51:05.000172 | Magda |
clojurians | clojure | district0x got some work on ethereum <https://medium.com/@matus.lestan/how-to-create-decentralised-apps-with-clojurescript-re-frame-and-ethereum-81de24d72ff5> | 2017-11-19T23:59:25.000052 | Lovie |
clojurians | clojure | <@Logan> Clojure requires a different mindset to OOP -- but you might want to look at HoneySQL as a composable way to build queries from expressions (which is compatible with `clojure.java.jdbc`). | 2017-11-20T01:24:38.000161 | Daniell |
clojurians | clojure | is there a way to tell clojure.core/memoize to only keep WEAK references to its arguments ? I need this to be WEAK in both clj and cljs | 2017-11-20T02:42:22.000096 | Berry |
clojurians | clojure | Has anyone tried Clojure with Google App Engine Java 8 RTE ? | 2017-11-20T02:54:57.000123 | Mario |
clojurians | clojure | <@Berry> no but I guess it wouldn't be too hard to roll your own version of memoize using weak maps. Be careful of browser support though. | 2017-11-20T03:05:00.000034 | Danyel |
clojurians | clojure | does clojure have any libraries pertaining to data analysis/data science? | 2017-11-20T04:43:43.000479 | Delsie |
clojurians | clojure | Howdy. What would you guys recommend for putting together a simple ReSTful API for passing JSON from Mongo to a web client? | 2017-11-20T05:01:33.000129 | Elois |
clojurians | clojure | <@Mario> I have been using it for a project for the past couple months and it mostly just works. Most quirks are due to the way the developer server is set up and the REPL. Let me know if you have specific questions and happy to help. | 2017-11-20T05:04:40.000136 | Ed |
clojurians | clojure | hey guys, does somebody know the owner of `<http://tryclj.com|tryclj.com>`? I just tried it today and it says that the domain name has expired :confused:
Just putting it here hoping it that the owner sees it. | 2017-11-20T05:31:55.000011 | Kenia |
clojurians | clojure | maybe a clone on `<http://try.clojure.org|try.clojure.org>`
The repo is here
<https://github.com/Raynes/tryclojure> | 2017-11-20T05:32:55.000020 | Shantae |
clojurians | clojure | unfortunately the owner passed away last year (see <https://cemerick.com/2016/12/07/rip-anthony-grimes/>), not sure if anybody else has access to the domain | 2017-11-20T05:33:08.000157 | Kareen |
clojurians | clojure | oh, didnt know that. Well there are now some other websites out there with Clojure repl so it shouldnt be a problem. | 2017-11-20T05:36:27.000437 | Kenia |
clojurians | clojure | Guys, is there a beautiful way to implement this in clojure?
```(defn handle-job-entity
[result {:keys [new_agent new_job job_request] :as entity}]
(when new_agent
(handle-new-agent entity))
(when new_job
(handle-new-job entity))
(when job_request
(handle-job-request entity)))```
Every time I receive an entity that has this three keys but only one is true at a time | 2017-11-20T05:56:49.000408 | Audie |
clojurians | clojure | <@Audie> multimethods | 2017-11-20T06:01:33.000435 | Kristy |
clojurians | clojure | ok, I’ll take a look into it
tks | 2017-11-20T06:05:54.000144 | Audie |
clojurians | clojure | <@Audie> I had this in mind:
```
(defmulti a (fn [result command]
(->> command (filter second) ffirst)))
(defmethod a :new_agent ...)
```
hope it helps! | 2017-11-20T06:07:26.000160 | Kristy |
clojurians | clojure | <@Audie> if all functions use the same argument, why dont you just pass the function as argument? `(handle-job-entity new-whatever entity)` and inside it, you just do `(new-whatever entity)` | 2017-11-20T06:10:42.000353 | Kenia |
clojurians | clojure | Have you been using standard or flexible environment ? I was looking at setting up project for standard environment. It seems like you have to do a fair bit of hackery if you want to use leiningen for building the project. :slightly_smiling_face: | 2017-11-20T06:14:07.000353 | Mario |
clojurians | clojure | But in that case, how can I know what function to pass? I think I’d have to check that three values | 2017-11-20T06:15:25.000310 | Audie |
clojurians | clojure | I’m having a hard time to go from OOP to funcional | 2017-11-20T06:15:52.000273 | Audie |
clojurians | clojure | It’s a whole new way to think | 2017-11-20T06:18:40.000230 | Audie |
clojurians | clojure | <@Audie> the code that calls `handle-job-entity` *must* know which function to call, otherwise it would not be possible to pass it as an argument as you show above. I assumed that you were in control of that code. | 2017-11-20T06:21:34.000331 | Kenia |
clojurians | clojure | Yes, I am.
The function that calls `handle-job-entity` is `handle-job-entities`
```(defn handle-job-entities
[job-entities]
(reduce handle-job-entity {} job-entities))``` | 2017-11-20T06:24:26.000112 | Audie |
clojurians | clojure | So in this function will I have to check some how that same values I’m receiving in `handle-job-entity` and pass the correct function right? | 2017-11-20T06:27:20.000071 | Audie |
clojurians | clojure | Is this a better approach than implementing using multimethods? | 2017-11-20T06:28:53.000288 | Audie |
clojurians | clojure | <@Audie> it depends. Multimethods are much more flexible but if you are just starting I would recommend you to stay with the basics. That way you can avoid overloading yourself with new stuff. | 2017-11-20T06:41:54.000032 | Kenia |
clojurians | clojure | I see. Good idea :grimacing:
But in that case where I pass the function depending on the value of that three keys, would’n I end up with the same problem before? | 2017-11-20T06:44:53.000248 | Audie |
clojurians | clojure | I’ve tried to do like this:
```(declare handle-new-agent handle-new-job handle-job-request)
(def entity-functions {:new_agent handle-new-agent, :new_job handle-new-job, :job_request handle-new-job})
(defn handle-new-agent
[result entity]
(prn "handle-new-agent: " entity))
(defn handle-new-job
[result entity]
(prn "handle-new-job: " entity))
(defn handle-job-request
[result entity]
(prn "handle-job-request: " entity))
(defn handle-job-entities
[job-entities]
(reduce (fn [result entity] ((entity-functions (first (keys entity))) result entity)) {} job-entities))
``` | 2017-11-20T07:42:56.000214 | Audie |
clojurians | clojure | But it gives me an `Attempting to call unbound fn: #'job-queue.job-queue-core/handle-new-agent` | 2017-11-20T07:43:21.000191 | Audie |
clojurians | clojure | put the `def` before the last `defn` | 2017-11-20T07:43:46.000255 | Kristy |
clojurians | clojure | i.e. you cannot do this `:new_job handle-new-job` before the `defn handle-new-job` | 2017-11-20T07:44:36.000142 | Kristy |
clojurians | clojure | sorry, I forgot that before the `def`I have:
```(declare handle-new-agent handle-new-job handle-job-request)``` | 2017-11-20T07:45:58.000269 | Audie |
clojurians | clojure | just fixed | 2017-11-20T07:46:20.000143 | Audie |
clojurians | clojure | in that case code looks fine! | 2017-11-20T07:48:01.000238 | Kristy |
clojurians | clojure | might it be that it's inconsistently evaluated into the repl? try loading it from scratch | 2017-11-20T07:48:26.000271 | Kristy |
clojurians | clojure | if I remove the `declare`and put the `def` after the last `defn`as you said, It works | 2017-11-20T07:55:12.000196 | Audie |
clojurians | clojure | but why is that? the declare did not bind with the function? | 2017-11-20T07:59:43.000207 | Audie |
clojurians | clojure | <@Audie> at first sight I would have said the code worked tbh | 2017-11-20T08:21:27.000049 | Kristy |
clojurians | clojure | here's the fix:
`(def entity-functions {:new_agent #'handle-new-agent, :new_job #'handle-new-job, :job_request #'handle-new-job})` | 2017-11-20T08:21:37.000404 | Kristy |
clojurians | clojure | (that's 'var quote' syntax) | 2017-11-20T08:22:03.000069 | Kristy |
clojurians | clojure | oh my..
can you please tell me why is it necessary? | 2017-11-20T08:22:26.000269 | Audie |
clojurians | clojure | `declare` returns special `clojure.lang.Var$Unbound` objects, you aren't supposed to handle them directly as the `(def entity-functions ...` code does | 2017-11-20T08:27:39.000008 | Kristy |
clojurians | clojure | a simpler lesson would be: define things in a way that the compiler can resolve at every moment | 2017-11-20T08:28:25.000176 | Kristy |
clojurians | clojure | coming from other languages you might be tempted to define higher-abstraction-level functions first, it would be nice if Clojure favored that style but it doesn't | 2017-11-20T08:29:47.000307 | Kristy |
clojurians | clojure | ```
(condp #(get %2 %1) entity
:new_job
(handle-new-job entity)
:new_agent
(handle-new-agent entity))
``` | 2017-11-20T08:36:20.000032 | Jodie |
clojurians | clojure | <@Audie> This is how I would approach this problem ^^ | 2017-11-20T08:37:21.000273 | Jodie |
clojurians | clojure | Thanks guys. I really appreciate the help <@Jodie> <@Kristy> <@Kenia> ! | 2017-11-20T09:00:24.000150 | Audie |
clojurians | clojure | could anybody remind me the easiest way to get start/end of the year for the datetime instance? I checked `clj-time` sources but without result (or did I skipped those functions?). thanks. | 2017-11-20T09:09:07.000657 | Verna |
clojurians | clojure | <@Verna> did you try `clj-time`? | 2017-11-20T09:26:38.000598 | Audie |
clojurians | clojure | <@Audie>> I checked `clj-http` sources… | 2017-11-20T09:27:14.000157 | Verna |
clojurians | clojure | http != time :stuck_out_tongue_winking_eye: | 2017-11-20T09:27:37.000261 | Kristy |
clojurians | clojure | oh, my bad. meant `clj-time` of course. | 2017-11-20T09:28:26.000148 | Verna |
clojurians | clojure | are there any functions to jump at the beginning/ending of some period: week, month, year etc? | 2017-11-20T09:29:18.000187 | Verna |
clojurians | clojure | <@Verna> "get next Monday": <https://gist.github.com/rauhs/3ec9f05f2501bfb40acec35eca3fa73e#file-java-8-time-clj-L32-L36> | 2017-11-20T09:36:57.000361 | Randee |
clojurians | clojure | It's Java 8's datetime API | 2017-11-20T09:37:18.000593 | Randee |
clojurians | clojure | Beginning/end of year should super easy, no? Just get the current year and create a new date with Jan 1 & Dec 31st? | 2017-11-20T09:38:04.000276 | Randee |
clojurians | clojure | <@Randee> thank you, the code looks interesting. Yes, dealing with the year issue would be easy. I just expected some general functions to exist. | 2017-11-20T09:39:21.000198 | Verna |
clojurians | clojure | for example, in PostresQL, there is a great `date_trunc` function | 2017-11-20T09:39:43.000706 | Verna |
clojurians | clojure | ```
select date_trunc('week', current_timestamp);
date_trunc
------------------------
2017-11-20 00:00:00+03
(1 row)
``` | 2017-11-20T09:40:05.000299 | Verna |
clojurians | clojure | <@Verna> Read the doc string of TemporalAdjuster, it has `TemporalAdjusters/firstDayOfYear`, and month (and last respectively) | 2017-11-20T09:42:57.000657 | Randee |
clojurians | clojure | Hi, y'all! Is there a way to stub clj-time to return a certain time instead of now, when I call `(t/now)`? I want to write tests and I am looking for something like timecop (a Ruby gem) | 2017-11-20T09:58:48.000535 | Allie |
clojurians | clojure | <@Allie> `with-redefs`? | 2017-11-20T09:59:44.000691 | Mallie |
clojurians | clojure | Sounds like it :slightly_smiling_face: | 2017-11-20T10:00:26.000698 | Allie |
clojurians | clojure | We tend to write our stuff so that most time-based functions take in a definition of 'now' as an argument. Makes testing easier, and then we generally only generate 'now' in one place in the live code and use it where needed | 2017-11-20T10:00:27.000005 | Mallie |
clojurians | clojure | let me read about that, found it being used in the tests of clj-time :slightly_smiling_face: | 2017-11-20T10:01:20.000191 | Allie |
clojurians | clojure | Hey guys, I'm trying to manipulate a record in Java. It seems assoc returns an Associative type. Is there a way to get back the same record type or do I have to just cast it everytime? | 2017-11-20T10:06:08.000348 | Eddy |
clojurians | clojure | example:
```
// c is a record of type "Context" created in Clojure with (defrecord Context [foo bar])
// this returns Associative rather than Context
c.assoc("some_key", "some_val")
//ideally I could just do this
c = c.assoc("some_key", "some_val")
``` | 2017-11-20T10:10:02.000349 | Eddy |
clojurians | clojure | <@Allie> you could try using mocking library for that: <https://github.com/igrishaev/mockery>
```
(with-mock _ {:target :clj-time.core/now
:return (date-time 2017 12 31)}
... code goes here))
``` | 2017-11-20T10:14:34.000238 | Verna |
clojurians | clojure | What does that get you that a simple `with-redefs` doesn't? | 2017-11-20T10:20:12.000837 | Mallie |
clojurians | clojure | It accumulates info about numbers of calls and arguments. | 2017-11-20T10:26:03.000229 | Verna |
clojurians | clojure | There was a recent library I saw that implemented some sort of computation DAG, very much like AWS Step Functions. I lost the link, does it ring a bell for anyone? | 2017-11-20T11:05:39.000394 | Guillermo |
clojurians | clojure | (It's not prismatics/graph) | 2017-11-20T11:07:05.000379 | Guillermo |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.