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Logs: liberachat/#haskell

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2021-07-12 23:48:45 <lambdabot> Distribution.Compat.Prelude.Internal class IsString a
2021-07-12 23:48:52 <geekosaur> (you're defeating its intended type safety)
2021-07-12 23:49:01 <Axman6> @hoogle fromString
2021-07-12 23:49:01 <lambdabot> Data.String fromString :: IsString a => String -> a
2021-07-12 23:49:01 <lambdabot> GHC.Exts fromString :: IsString a => String -> a
2021-07-12 23:49:01 <lambdabot> Data.Text.Internal.Builder fromString :: String -> Builder
2021-07-12 23:49:42 <AWizzArd> Raugh: the `Query` constructor takes a ByteString. You could try let q = Query (BS.pack "SELECT from file")
2021-07-12 23:50:15 <AWizzArd> Raugh: possibly you can read it directly as ByteString from the file.
2021-07-12 23:50:46 <AWizzArd> I am doing something similar. I read strings as BS from Postgres actually. I have queries stored in there. I retrieve them and then run them.
2021-07-12 23:52:39 <Axman6> Isn't that what stored procedures are for?
2021-07-12 23:52:48 <Raugh> interesting, ok, trying each method. Its not escaping a substituted table name correct for me either and I'm realizing it might not be set up to run multiple statements at once out of the box so I think I have a bit of digging to do
2021-07-12 23:53:05 <hololeap> how would I make a --help option with optparse-applicative?
2021-07-12 23:53:13 <Axman6> no, it almost certainly isn't
2021-07-12 23:53:14 <AWizzArd> Axman6: sure, but in my case the queries are editable by certain admin users.
2021-07-12 23:53:21 <Axman6> quick hack would be to split on ;
2021-07-12 23:53:45 → argento joins (~argent0@168-227-97-29.ptr.westnet.com.ar)
2021-07-12 23:54:38 → eggplantade joins (~Eggplanta@2600:1700:bef1:5e10:6d00:2ab2:6519:235b)
2021-07-12 23:54:50 × argento quits (~argent0@168-227-97-29.ptr.westnet.com.ar) (Client Quit)
2021-07-12 23:55:21 → lavaman joins (~lavaman@98.38.249.169)
2021-07-12 23:56:56 × lavaman quits (~lavaman@98.38.249.169) (Remote host closed the connection)
2021-07-12 23:57:08 → lavaman joins (~lavaman@98.38.249.169)
2021-07-12 23:59:11 <hololeap> this seems really convoluted for such a common use case
2021-07-13 00:00:11 → myShoggoth joins (~myShoggot@97-120-70-214.ptld.qwest.net)
2021-07-13 00:01:17 <Axman6> hololeap: https://github.com/pcapriotti/optparse-applicative
2021-07-13 00:02:39 <hololeap> Axman6: ha, I should have looked there first ... :)
2021-07-13 00:03:12 → vicfred joins (~vicfred@user/vicfred)
2021-07-13 00:05:09 <AWizzArd> Looking for: (Traversable t) => t a -> Maybe a
2021-07-13 00:05:51 <Axman6> (^? traverse) :P
2021-07-13 00:05:59 <Axman6> :t (^? traverse)
2021-07-13 00:06:00 <lambdabot> Traversable t => t a -> Maybe a
2021-07-13 00:06:28 <glguy> :t foldr (\x _ -> Just x) Nothing
2021-07-13 00:06:29 <lambdabot> Foldable t => t a -> Maybe a
2021-07-13 00:06:36 <Raugh> hmm, neither fromString nor BS.pack are working for me
2021-07-13 00:06:41 <Raugh> constructor not in scope
2021-07-13 00:07:15 <Raugh> AWizzArd: are you using that exact syntax? for me its a type error
2021-07-13 00:08:31 <geekosaur> looks to me like the Query data constructor might not be exported
2021-07-13 00:08:42 <AWizzArd> What is your type error? In my code I have literally: (Query qry) where `qry` is coming from my DB from an earlier query.
2021-07-13 00:09:22 <AWizzArd> geekosaur: I am doing import Database.PostgreSQL.Simple.Types ( Query (..) )
2021-07-13 00:09:25 <geekosaur> which was a worry given the docs said it was a wrapped ByteString with a restricted API for type safety
2021-07-13 00:09:56 <geekosaur> AWizzArd, that might well succeed importing nothing if the data constructor isn't exported
2021-07-13 00:10:17 <AWizzArd> geekosaur: I can at least tell that my code runs/works.
2021-07-13 00:10:31 <geekosaur> what version of postgresql-simple?
2021-07-13 00:10:40 <Axman6> it's ecported in the latest release
2021-07-13 00:10:45 <Axman6> exported*
2021-07-13 00:11:12 <Raugh> how do i tell which version got pulled in by stack?
2021-07-13 00:11:23 <AWizzArd> geekosaur: https://hackage.haskell.org/package/postgresql-simple-0.6.4/docs/src/Database.PostgreSQL.Simple.Types.html
2021-07-13 00:11:33 <Raugh> Yeah I'm impoerting Query (..)
2021-07-13 00:11:33 <AWizzArd> In there I see an export.
2021-07-13 00:11:48 <AWizzArd> Raugh: can you please paste the type error that you see?
2021-07-13 00:11:55 × Tuplanolla quits (~Tuplanoll@91-159-68-239.elisa-laajakaista.fi) (Quit: Leaving.)
2021-07-13 00:12:13 <Raugh> 0.6.4
2021-07-13 00:12:14 <geekosaur> yeh, I just checked that myself
2021-07-13 00:12:22 <geekosaur> so it's exported
2021-07-13 00:12:35 <AWizzArd> newtype Query = Query { fromQuery :: ByteString } deriving (Eq, Ord, Typeable)} deriving (Eq, Ord, Typeable)
2021-07-13 00:12:41 × yaroot quits (~yaroot@6.3.30.125.dy.iij4u.or.jp) (Quit: The Lounge - https://thelounge.chat)
2021-07-13 00:13:01 <AWizzArd> Raugh: if you import Query (..) and pass in a ByteString then it will work.
2021-07-13 00:13:06 × favonia quits (~favonia@user/favonia) (Ping timeout: 240 seconds)
2021-07-13 00:13:17 <Raugh> ok its imported now i'm on to bytesting errors i should be able to figure these out
2021-07-13 00:13:30 → yaroot joins (~yaroot@6.3.30.125.dy.iij4u.or.jp)
2021-07-13 00:13:54 <Raugh> BS.pack is expecting a Word8 not [Char] going to the docs
2021-07-13 00:13:59 <AWizzArd> Raugh: from what module do you try to import ByteString? The PG lib is doing it like this: import Data.ByteString (ByteString)
2021-07-13 00:14:11 <AWizzArd> I keep forgetting if this is strict or lazy.
2021-07-13 00:14:28 <Raugh> import qualified Data.ByteString as BS (pack)
2021-07-13 00:14:30 <geekosaur> Raugh, you should probably use what I pasted originally, which deals with UTF8
2021-07-13 00:14:58 <geekosaur> there's an ugly hack Data.ByteString.Char8 but that will fail if there's any Unicode involved
2021-07-13 00:15:22 <geekosaur> it pack will appear to work but silently produce garbage
2021-07-13 00:15:25 <geekosaur> *its
2021-07-13 00:15:32 <AWizzArd> Raugh: how do you read from your file? Are you using something like https://hackage.haskell.org/package/bytestring-0.11.1.0/docs/Data-ByteString.html#v:readFile
2021-07-13 00:15:56 × mikolaj__ quits (~mikon@duch.mimuw.edu.pl) (Ping timeout: 265 seconds)
2021-07-13 00:16:06 <Raugh> geekosaur: I couldn't parse what you posted, should I be using Data.String fromString?
2021-07-13 00:16:48 <Raugh> I'm using a derpy yaml config of all things, maybe its time to go back to the books on this one.
2021-07-13 00:17:05 <geekosaur> https://hackage.haskell.org/package/postgresql-simple-0.6.4/docs/src/Database.PostgreSQL.Simple.Types.html#line-90 which uses stringUtf8 and fromString
2021-07-13 00:17:34 → mikolaj joins (~mikon@duch.mimuw.edu.pl)
2021-07-13 00:17:40 <geekosaur> alternately read the ByteString as a ByteString and just wrap it in Query
2021-07-13 00:18:03 × chomwitt quits (~Pitsikoko@2a02:587:dc04:e00:12c3:7bff:fe6d:d374) (Remote host closed the connection)
2021-07-13 00:18:44 <AWizzArd> Raugh: yeah, what geekosaur just wrote sounds good. Can you possibly use a `readFile` function that will actually give you directly a BS?
2021-07-13 00:19:20 × Danishman quits (~Allan@2-104-144-110-cable.dk.customer.tdc.net) (Quit: Leaving)
2021-07-13 00:19:54 <AWizzArd> glguy: ah, interesting foldr!
2021-07-13 00:20:32 → mikail_ joins (~mikail@2a02:c7f:bd83:fd00:55cf:122f:957a:f66f)
2021-07-13 00:20:36 × Vajb quits (~Vajb@hag-jnsbng11-58c3a1-224.dhcp.inet.fi) (Read error: Connection reset by peer)
2021-07-13 00:20:49 → Vajb joins (~Vajb@2001:999:62:1d53:26b1:6c9b:c1ed:9c01)
2021-07-13 00:22:08 <Raugh> geekosaur: oh interesting, i'll try it that uses some parts of postgresql.simple as well
2021-07-13 00:22:17 × trufas quits (~trufas@177.240.218.218) (Ping timeout: 252 seconds)
2021-07-13 00:22:50 → trufas joins (~trufas@177.240.218.218)
2021-07-13 00:25:08 × mikail_ quits (~mikail@2a02:c7f:bd83:fd00:55cf:122f:957a:f66f) (Ping timeout: 256 seconds)
2021-07-13 00:27:23 → warnz joins (~warnz@2600:1700:77c0:5610:acd9:fdbc:f96e:2452)
2021-07-13 00:28:07 × Deide quits (~Deide@user/deide) (Quit: Seeee yaaaa)
2021-07-13 00:30:06 → dajoer joins (~david@user/gvx)
2021-07-13 00:31:56 × warnz quits (~warnz@2600:1700:77c0:5610:acd9:fdbc:f96e:2452) (Ping timeout: 256 seconds)
2021-07-13 00:31:57 × Vajb quits (~Vajb@2001:999:62:1d53:26b1:6c9b:c1ed:9c01) (Read error: Connection reset by peer)
2021-07-13 00:32:50 → Vajb joins (~Vajb@hag-jnsbng11-58c3a1-224.dhcp.inet.fi)
2021-07-13 00:34:25 <Raugh> lol, ok copied the same composition of funcions in as a helper but now for some reason its injecting table names in my sql wrong its adding quotes around them I must be using the wrong type. I'm using Only String as the table name
2021-07-13 00:35:31 <c_wraith> most parameterized query libraries don't let you parameterize the name of the table
2021-07-13 00:38:04 tabemann_ is now known as tabemann
2021-07-13 00:38:17 → merijn joins (~merijn@83-160-49-249.ip.xs4all.nl)
2021-07-13 00:39:10 → mikail_ joins (~mikail@2a02:c7f:bd83:fd00:55cf:122f:957a:f66f)
2021-07-13 00:39:59 × chris-the-slurpa quits (~chris@81.96.113.213) (Remote host closed the connection)
2021-07-13 00:41:00 <Raugh> ok, i think i'm starting to be able to walk here. Theres an Identifier in types i can use to tell it to treat it as a table name
2021-07-13 00:41:34 × myShoggoth quits (~myShoggot@97-120-70-214.ptld.qwest.net) (Ping timeout: 256 seconds)
2021-07-13 00:42:40 → retro_ joins (~retro@90.218.175.34)
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