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{-|
Module : Gargantext.Database.TextSearch
Description : Postgres text search experimentation
Copyright : (c) CNRS, 2017-Present
License : AGPL + CECILL v3
Maintainer : team@gargantext.org
Stability : experimental
Portability : POSIX
-}
{-# LANGUAGE Arrows #-}
module Gargantext.Database.Action.Search where
import Control.Arrow (returnA)
import Control.Lens ((^.))
import Data.Aeson
import Data.List (intersperse)
import Data.Maybe
import Data.String (IsString(..))
import Data.Text (Text, words, unpack, intercalate)
import Data.Time (UTCTime)
import Database.PostgreSQL.Simple (Query)
import Database.PostgreSQL.Simple.ToField
import Gargantext.Core.Types
import Gargantext.Database.Admin.Config (nodeTypeId)
import Gargantext.Database.Admin.Types.Hyperdata (HyperdataDocument(..), HyperdataContact(..))
import Gargantext.Database.Prelude (Cmd, runPGSQuery, runOpaQuery, runCountOpaQuery)
import Gargantext.Database.Query.Facet
import Gargantext.Database.Query.Filter
import Gargantext.Database.Query.Join (leftJoin5)
import Gargantext.Database.Query.Table.Node
import Gargantext.Database.Query.Table.NodeNode
import Gargantext.Database.Schema.Node
import Gargantext.Prelude
import Gargantext.Core.Text.Terms.Mono.Stem.En (stemIt)
import Opaleye hiding (Query, Order)
import Data.Profunctor.Product (p4)
import qualified Opaleye as O hiding (Order)
------------------------------------------------------------------------
searchDocInDatabase :: ParentId
-> Text
-> Cmd err [(NodeId, HyperdataDocument)]
searchDocInDatabase p t = runOpaQuery (queryDocInDatabase p t)
where
-- | Global search query where ParentId is Master Node Corpus Id
queryDocInDatabase :: ParentId -> Text -> O.Query (Column PGInt4, Column PGJsonb)
queryDocInDatabase _ q = proc () -> do
row <- queryNodeSearchTable -< ()
restrict -< (_ns_search row) @@ (pgTSQuery (unpack q))
restrict -< (_ns_typename row) .== (pgInt4 $ nodeTypeId NodeDocument)
returnA -< (_ns_id row, _ns_hyperdata row)
------------------------------------------------------------------------
-- | todo add limit and offset and order
searchInCorpus :: CorpusId
-> IsTrash
-> [Text]
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Cmd err [FacetDoc]
searchInCorpus cId t q o l order = runOpaQuery
$ filterWith o l order
$ queryInCorpus cId t
$ intercalate " | "
$ map stemIt q
searchCountInCorpus :: CorpusId
-> IsTrash
-> [Text]
-> Cmd err Int
searchCountInCorpus cId t q = runCountOpaQuery
$ queryInCorpus cId t
$ intercalate " | "
$ map stemIt q
queryInCorpus :: CorpusId
-> IsTrash
-> Text
-> O.Query FacetDocRead
queryInCorpus cId t q = proc () -> do
(n, nn) <- joinInCorpus -< ()
restrict -< (nn^.nn_node1_id) .== (toNullable $ pgNodeId cId)
restrict -< if t
then (nn^.nn_category) .== (toNullable $ pgInt4 0)
else (nn^.nn_category) .>= (toNullable $ pgInt4 1)
restrict -< (n ^. ns_search) @@ (pgTSQuery (unpack q))
restrict -< (n ^. ns_typename ) .== (pgInt4 $ nodeTypeId NodeDocument)
returnA -< FacetDoc (n^.ns_id )
(n^.ns_date )
(n^.ns_name )
(n^.ns_hyperdata)
(nn^.nn_category)
(nn^.nn_score )
joinInCorpus :: O.Query (NodeSearchRead, NodeNodeReadNull)
joinInCorpus = leftJoin queryNodeSearchTable queryNodeNodeTable cond
where
cond :: (NodeSearchRead, NodeNodeRead) -> Column PGBool
cond (n, nn) = nn^.nn_node2_id .== _ns_id n
------------------------------------------------------------------------
searchInCorpusWithContacts
:: CorpusId
-> AnnuaireId
-> [Text]
-> Maybe Offset
-> Maybe Limit
-> Maybe OrderBy
-> Cmd err [FacetPaired Int UTCTime HyperdataContact Int]
searchInCorpusWithContacts cId aId q o l _order =
runOpaQuery $ limit' l
$ offset' o
$ orderBy ( desc _fp_score)
$ selectGroup cId aId
$ intercalate " | "
$ map stemIt q
selectContactViaDoc
:: CorpusId
-> AnnuaireId
-> Text
-> QueryArr ()
( Column (Nullable PGInt4)
, Column (Nullable PGTimestamptz)
, Column (Nullable PGJsonb)
, Column (Nullable PGInt4)
)
selectContactViaDoc cId aId q = proc () -> do
(doc, (corpus_doc, (_contact_doc, (annuaire_contact, contact)))) <- queryContactViaDoc -< ()
restrict -< (doc^.ns_search) @@ (pgTSQuery $ unpack q )
restrict -< (doc^.ns_typename) .== (pgInt4 $ nodeTypeId NodeDocument)
restrict -< (corpus_doc^.nn_node1_id) .== (toNullable $ pgNodeId cId)
restrict -< (annuaire_contact^.nn_node1_id) .== (toNullable $ pgNodeId aId)
restrict -< (contact^.node_typename) .== (toNullable $ pgInt4 $ nodeTypeId NodeContact)
returnA -< ( contact^.node_id
, contact^.node_date
, contact^.node_hyperdata
, toNullable $ pgInt4 1
)
selectGroup :: NodeId
-> NodeId
-> Text
-> Select FacetPairedReadNull
selectGroup cId aId q = proc () -> do
(a, b, c, d) <- aggregate (p4 (groupBy, groupBy, groupBy, O.sum))
(selectContactViaDoc cId aId q) -< ()
returnA -< FacetPaired a b c d
queryContactViaDoc :: O.Query ( NodeSearchRead
, ( NodeNodeReadNull
, ( NodeNodeReadNull
, ( NodeNodeReadNull
, NodeReadNull
)
)
)
)
queryContactViaDoc =
leftJoin5
queryNodeTable
queryNodeNodeTable
queryNodeNodeTable
queryNodeNodeTable
queryNodeSearchTable
cond12
cond23
cond34
cond45
where
cond12 :: (NodeNodeRead, NodeRead) -> Column PGBool
cond12 (annuaire_contact, contact) = contact^.node_id .== annuaire_contact^.nn_node2_id
cond23 :: ( NodeNodeRead
, ( NodeNodeRead
, NodeReadNull
)
) -> Column PGBool
cond23 (contact_doc, (annuaire_contact, _)) = contact_doc^.nn_node1_id .== annuaire_contact^.nn_node2_id
cond34 :: ( NodeNodeRead
, ( NodeNodeRead
, ( NodeNodeReadNull
, NodeReadNull
)
)
) -> Column PGBool
cond34 (corpus_doc, (contact_doc, (_,_))) = corpus_doc^.nn_node2_id .== contact_doc^.nn_node2_id
cond45 :: ( NodeSearchRead
, ( NodeNodeRead
, ( NodeNodeReadNull
, ( NodeNodeReadNull
, NodeReadNull
)
)
)
) -> Column PGBool
cond45 (doc, (corpus_doc, (_,(_,_)))) = doc^.ns_id .== corpus_doc^.nn_node2_id
------------------------------------------------------------------------
newtype TSQuery = UnsafeTSQuery [Text]
-- | TODO [""] -> panic "error"
toTSQuery :: [Text] -> TSQuery
toTSQuery txt = UnsafeTSQuery $ map stemIt txt
instance IsString TSQuery
where
fromString = UnsafeTSQuery . words . cs
instance ToField TSQuery
where
toField (UnsafeTSQuery xs)
= Many $ intersperse (Plain " && ")
$ map (\q -> Many [ Plain "plainto_tsquery("
, Escape (cs q)
, Plain ")"
]
) xs
data Order = Asc | Desc
instance ToField Order
where
toField Asc = Plain "ASC"
toField Desc = Plain "DESC"
-- TODO
-- FIX fav
-- ADD ngrams count
-- TESTS
textSearchQuery :: Query
textSearchQuery = "SELECT n.id, n.hyperdata->'publication_year' \
\ , n.hyperdata->'title' \
\ , n.hyperdata->'source' \
\ , n.hyperdata->'authors' \
\ , COALESCE(nn.score,null) \
\ FROM nodes n \
\ LEFT JOIN nodes_nodes nn ON nn.node2_id = n.id \
\ WHERE \
\ n.search @@ (?::tsquery) \
\ AND (n.parent_id = ? OR nn.node1_id = ?) \
\ AND n.typename = ? \
\ ORDER BY n.hyperdata -> 'publication_date' ? \
\ offset ? limit ?;"
-- | Text Search Function for Master Corpus
-- TODO : text search for user corpus
-- Example:
-- textSearchTest :: ParentId -> TSQuery -> Cmd err [(Int, Value, Value, Value, Value, Maybe Int)]
-- textSearchTest pId q = textSearch q pId 5 0 Asc
textSearch :: TSQuery -> ParentId
-> Limit -> Offset -> Order
-> Cmd err [(Int,Value,Value,Value, Value, Maybe Int)]
textSearch q p l o ord = runPGSQuery textSearchQuery (q,p,p,typeId,ord,o,l)
where
typeId = nodeTypeId NodeDocument