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[FIX] hard path in dependencies.
[gargantext.git] / src / Data / Gargantext / Database / Ngram.hs
1 {-# LANGUAGE TemplateHaskell #-}
2 {-# LANGUAGE FlexibleInstances #-}
3 {-# LANGUAGE MultiParamTypeClasses #-}
4 {-# LANGUAGE FunctionalDependencies #-}
5 {-# LANGUAGE Arrows #-}
6
7 module Data.Gargantext.Database.Ngram where
8
9 import Prelude
10 import Data.Text (Text)
11 import Data.Maybe (Maybe)
12 import Data.Profunctor.Product.TH (makeAdaptorAndInstance)
13 import Control.Lens.TH (makeLensesWith, abbreviatedFields)
14 import qualified Database.PostgreSQL.Simple as PGS
15
16 import Opaleye
17
18 import Data.Gargantext.Database.Private (infoGargandb)
19
20 -- Functions only
21 import Data.List (find)
22
23
24 data NgramPoly id terms n = Ngram { ngram_id :: id
25 , ngram_terms :: terms
26 , ngram_n :: n
27 } deriving (Show)
28
29 type NgramWrite = NgramPoly (Maybe (Column PGInt4)) (Column PGText) (Column PGInt4)
30 type NgramRead = NgramPoly (Column PGInt4) (Column PGText) (Column PGInt4)
31
32 type Ngram = NgramPoly Int Text Int
33
34 $(makeAdaptorAndInstance "pNgram" ''NgramPoly)
35 $(makeLensesWith abbreviatedFields ''NgramPoly)
36
37
38 ngramTable :: Table NgramWrite NgramRead
39 ngramTable = Table "ngrams" (pNgram Ngram { ngram_id = optional "id"
40 , ngram_terms = required "terms"
41 , ngram_n = required "n"
42 }
43 )
44
45
46 queryNgramTable :: Query NgramRead
47 queryNgramTable = queryTable ngramTable
48
49
50 --selectUsers :: Query UserRead
51 --selectUsers = proc () -> do
52 -- --user@(i, p, ll, is, un, fn, ln, m, iff, ive, dj) <- queryUserTable -< ()
53 -- row@(User i p ll is un fn ln m iff ive dj) <- queryUserTable -< ()
54 -- O.restrict -< i .== 1
55 -- --returnA -< User i p ll is un fn ln m iff ive dj
56 -- returnA -< row
57 --
58
59 findWith :: (Eq a1, Foldable t) => (a -> a1) -> a1 -> t a -> Maybe a
60 findWith f t = find (\x -> f x == t)
61
62 --userWithUsername :: Text -> [User] -> Maybe User
63 --userWithUsername t xs = userWith userUsername t xs
64 --
65 --userWithId :: Integer -> [User] -> Maybe User
66 --userWithId t xs = userWith userUserId t xs
67
68 -- | not optimized (get all ngrams without filters)
69 ngrams :: IO [Ngram]
70 ngrams = do
71 conn <- PGS.connect infoGargandb
72 runQuery conn queryNgramTable