src/Gargantext/Database/NodeNode.hs

   1 {-# LANGUAGE TemplateHaskell #-}
   2 {-# LANGUAGE FlexibleInstances #-}
   3 {-# LANGUAGE MultiParamTypeClasses #-}
   4 {-# LANGUAGE FunctionalDependencies #-}
   5 {-# LANGUAGE Arrows #-}
   6 {-# OPTIONS_GHC -fno-warn-orphans #-}
   7
   8 module Gargantext.Database.NodeNode where
   9
  10 import Prelude
  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
  19 data NodeNodePoly node1_id node2_id score
  20                    = NodeNode { nodeNode_node1_id   :: node1_id
  21                               , nodeNode_node2_id   :: node2_id
  22                               , nodeNode_score :: score
  23                               } deriving (Show)
  24
  25 type NodeNodeWrite = NodeNodePoly (Column (Nullable PGInt4)) (Column (PGInt4)) (Column (Nullable PGFloat8))
  26 type NodeNodeRead  = NodeNodePoly (Column (Nullable PGInt4)) (Column (PGInt4)) (Column (Nullable PGFloat8))
  27
  28
  29 type NodeNodeReadNull  = NodeNodePoly (Column (Nullable PGInt4)) (Column (Nullable PGInt4)) (Column (Nullable PGFloat8))
  30
  31
  32 -- type NodeNodeNodeJoined = (Co
  33
  34
  35
  36
  37 type NodeNode = NodeNodePoly Int Int (Maybe Double)
  38
  39 $(makeAdaptorAndInstance "pNodeNode" ''NodeNodePoly)
  40 $(makeLensesWith abbreviatedFields   ''NodeNodePoly)
  41
  42
  43 nodeNodeTable :: Table NodeNodeWrite NodeNodeRead
  44 nodeNodeTable  = Table "nodes_nodes" (pNodeNode NodeNode { nodeNode_node1_id = required "node1_id"
  45                                                          , nodeNode_node2_id = required "node2_id"
  46                                                          , nodeNode_score    = required "score"
  47                                                          }
  48                                        )
  49
  50
  51 queryNodeNodeTable :: Query NodeNodeRead
  52 queryNodeNodeTable = queryTable nodeNodeTable
  53
  54
  55 -- | not optimized (get all ngrams without filters)
  56 nodeNodes :: PGS.Connection -> IO [NodeNode]
  57 nodeNodes conn = runQuery conn queryNodeNodeTable
  58
  59 instance QueryRunnerColumnDefault (Nullable PGInt4) Int where
  60     queryRunnerColumnDefault = fieldQueryRunnerColumn
  61
  62 instance QueryRunnerColumnDefault PGFloat8 (Maybe Double) where
  63     queryRunnerColumnDefault = fieldQueryRunnerColumn
  64
  65