[OPTIM] Ngrams Table scores

src/Gargantext/Database/Action/Metrics/NgramsByContext.hs

@@ -16,21 +16,23 @@ Ngrams by node enable contextual metrics.
 module Gargantext.Database.Action.Metrics.NgramsByContext
   where
 
+-- import Debug.Trace (trace)
 --import Data.Map.Strict.Patch (PatchMap, Replace, diff)
 import Data.HashMap.Strict (HashMap)
 import Data.Map (Map)
+import Data.Maybe (catMaybes)
 import Data.Set (Set)
 import Data.Text (Text)
 import Data.Tuple.Extra (first, second, swap)
 import Database.PostgreSQL.Simple.SqlQQ (sql)
 import Database.PostgreSQL.Simple.Types (Values(..), QualifiedIdentifier(..))
--- import Debug.Trace (trace)
-import Gargantext.Core
 import Gargantext.API.Ngrams.Types (NgramsTerm(..))
+import Gargantext.Core
 import Gargantext.Data.HashMap.Strict.Utils as HM
 import Gargantext.Database.Admin.Types.Node (ListId, CorpusId, NodeId(..), ContextId, MasterCorpusId, NodeType(NodeDocument), UserCorpusId, DocId)
 import Gargantext.Database.Prelude (Cmd, runPGSQuery)
-import Gargantext.Database.Schema.Ngrams (ngramsTypeId, NgramsType(..))
+import Gargantext.Database.Query.Table.Ngrams (selectNgramsId)
+import Gargantext.Database.Schema.Ngrams (ngramsTypeId, NgramsType(..), NgramsId)
 import Gargantext.Prelude
 import qualified Data.HashMap.Strict as HM
 import qualified Data.Map as Map
@@ -111,39 +113,45 @@ getOccByNgramsOnlyFast' :: CorpusId
                        -> NgramsType
                        -> [NgramsTerm]
                        -> Cmd err (HashMap NgramsTerm Int)
-getOccByNgramsOnlyFast' cId lId nt tms = -- trace (show (cId, lId)) $
-  HM.fromListWith (+) <$> map (second round) <$> run cId lId nt tms
-
+getOccByNgramsOnlyFast' cId lId nt tms = do -- trace (show (cId, lId)) $
+  mapNgramsIds <- selectNgramsId $ map unNgramsTerm tms
+  HM.fromListWith (+) <$> catMaybes
+                      <$> map (\(nId, s) -> (,) <$> (NgramsTerm <$> (Map.lookup nId mapNgramsIds)) <*> (Just $ round s) )
+                      <$> run cId lId nt (Map.keys mapNgramsIds)
     where
-      fields = [QualifiedIdentifier Nothing "text"]
 
       run :: CorpusId
            -> ListId
            -> NgramsType
-           -> [NgramsTerm]
-           -> Cmd err [(NgramsTerm, Double)]
-      run cId' lId' nt' tms' = map (first NgramsTerm) <$> runPGSQuery query
-                ( Values fields ((DPS.Only . unNgramsTerm) <$> tms')
+           -> [NgramsId]
+           -> Cmd err [(NgramsId, Double)]
+      run cId' lId' nt' tms' = runPGSQuery query
+                ( Values fields ((DPS.Only) <$> tms')
                 , cId'
                 , lId'
                 , ngramsTypeId nt'
                 )
+      fields = [QualifiedIdentifier Nothing "int4"]
+
 
       query :: DPS.Query
       query = [sql|
-        WITH input_rows(terms) AS (?)
-        SELECT ng.terms, nng.weight FROM nodes_contexts nc
+        WITH input_ngrams(id) AS (?)
+
+        SELECT ngi.id, nng.weight FROM nodes_contexts nc
         JOIN node_node_ngrams nng ON nng.node1_id = nc.node_id
-          JOIN ngrams              ng  ON nng.ngrams_id = ng.id
-          JOIN input_rows          ir  ON ir.terms      = ng.terms
-          WHERE nng.node1_id       = ?  -- CorpusId
-            AND nng.node2_id       = ?  -- ListId
-            AND nng.ngrams_type    = ?  -- NgramsTypeId
-            AND nc.category        > 0  -- Not trash
-            GROUP BY ng.terms, nng.weight
+        JOIN input_ngrams ngi ON nng.ngrams_id = ngi.id
+          WHERE nng.node1_id = ?
+          AND nng.node2_id = ?
+          AND nng.ngrams_type = ?
+          AND nc.category > 0
+        GROUP BY ngi.id, nng.weight
+
         |]
   
 
+
+
 selectNgramsOccurrencesOnlyByContextUser_withSample :: HasDBid NodeType
                                       => CorpusId
                                       -> Int

src/Gargantext/Database/Prelude.hs

@@ -140,6 +140,22 @@ runPGSQuery q a = mkCmd $ \conn -> catch (PGS.query conn q a) (printError conn)
       hPutStrLn stderr q'
       throw (SomeException e)
 
+{-
+-- TODO
+runPGSQueryFold :: ( CmdM env err m
+               , PGS.FromRow r
+               )
+               => PGS.Query -> a -> (a -> r -> IO a) -> m a
+runPGSQueryFold q initialState consume = mkCmd $ \conn -> catch (PGS.fold_ conn initialState consume) (printError conn)
+  where
+    printError c (SomeException e) = do
+      q' <- PGS.formatQuery c q
+      hPutStrLn stderr q'
+      throw (SomeException e)
+-}
+
+
+
 -- | TODO catch error
 runPGSQuery_ :: ( CmdM env err m
                , PGS.FromRow r

src/Gargantext/Database/Query/Table/Ngrams.hs

@@ -18,27 +18,29 @@ module Gargantext.Database.Query.Table.Ngrams
   , queryNgramsTable
   , selectNgramsByDoc
   , insertNgrams
+  , selectNgramsId
   )
     where
 
 import Control.Lens ((^.))
 import Data.ByteString.Internal (ByteString)
 import Data.HashMap.Strict (HashMap)
+import Data.Map (Map)
 import Data.Text (Text)
-import qualified Data.HashMap.Strict        as HashMap
-import qualified Data.List                  as List
-import qualified Database.PostgreSQL.Simple as PGS
-
 import Gargantext.Core.Types
 import Gargantext.Database.Prelude (runOpaQuery, Cmd, formatPGSQuery, runPGSQuery)
 import Gargantext.Database.Query.Join (leftJoin3)
 import Gargantext.Database.Query.Table.ContextNodeNgrams2
+import Gargantext.Database.Query.Table.NodeNgrams (queryNodeNgramsTable)
 import Gargantext.Database.Schema.Ngrams
 import Gargantext.Database.Schema.NodeNgrams
-import Gargantext.Database.Query.Table.NodeNgrams (queryNodeNgramsTable)
 import Gargantext.Database.Schema.Prelude
 import Gargantext.Database.Types
 import Gargantext.Prelude
+import qualified Data.HashMap.Strict        as HashMap
+import qualified Data.List                  as List
+import qualified Data.Map                   as Map
+import qualified Database.PostgreSQL.Simple as PGS
 
 queryNgramsTable :: Select NgramsRead
 queryNgramsTable = selectTable ngramsTable
@@ -106,3 +108,28 @@ queryInsertNgrams = [sql|
     FROM   input_rows
     JOIN   ngrams c USING (terms);     -- columns of unique index
            |]
+
+
+--------------------------------------------------------------------------
+selectNgramsId :: [Text] -> Cmd err (Map NgramsId Text)
+selectNgramsId ns =
+  if List.null ns
+     then pure Map.empty
+     else Map.fromList <$> map (\(Indexed i t) -> (i, t)) <$> (selectNgramsId' ns)
+
+selectNgramsId' :: [Text] -> Cmd err [Indexed Int Text]
+selectNgramsId' ns = runPGSQuery querySelectNgramsId ( PGS.Only
+                                                     $ Values fields ns
+                                                     )
+  where
+    fields = map (\t -> QualifiedIdentifier Nothing t) ["text"]
+
+    querySelectNgramsId :: PGS.Query
+    querySelectNgramsId = [sql|
+        WITH input_rows(terms) AS (?)
+        SELECT n.id, n.terms
+        FROM   ngrams n
+        JOIN input_rows ir ON ir.terms = n.terms
+        GROUP BY n.terms, n.id
+        |]
+

src/Gargantext/Database/Schema/Ngrams.hs

@@ -11,6 +11,7 @@ Ngrams connection to the Database.
 
 -}
 
+{-# OPTIONS_GHC -fno-warn-orphans   #-}
 {-# LANGUAGE Arrows                 #-}
 {-# LANGUAGE FunctionalDependencies #-}
 {-# LANGUAGE QuasiQuotes            #-}
@@ -173,6 +174,9 @@ instance FromField Ngrams where
     x <- fromField fld mdata
     pure $ text2ngrams x
 
+instance PGS.ToRow Text where
+  toRow t = [toField t]
+
 text2ngrams :: Text -> Ngrams
 text2ngrams txt = UnsafeNgrams txt' $ length $ splitOn " " txt'
   where