mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-17 12:31:52 +03:00
223 lines
8.1 KiB
Haskell
223 lines
8.1 KiB
Haskell
module Hasura.RQL.DML.Insert
|
|
( runInsert
|
|
) where
|
|
|
|
import Hasura.Prelude
|
|
|
|
import qualified Data.HashMap.Strict as HM
|
|
import qualified Data.HashSet as HS
|
|
import qualified Data.Sequence as DS
|
|
import qualified Database.PG.Query as Q
|
|
|
|
import Data.Aeson.Types
|
|
import Data.Text.Extended
|
|
import Instances.TH.Lift ()
|
|
|
|
import qualified Hasura.Backends.Postgres.SQL.DML as S
|
|
|
|
import Hasura.Backends.Postgres.Connection
|
|
import Hasura.Backends.Postgres.Execute.Mutation
|
|
import Hasura.Backends.Postgres.SQL.Types
|
|
import Hasura.Backends.Postgres.Translate.Returning
|
|
import Hasura.EncJSON
|
|
import Hasura.RQL.DML.Internal
|
|
import Hasura.RQL.DML.Types
|
|
import Hasura.RQL.IR.Insert
|
|
import Hasura.RQL.Types
|
|
import Hasura.Server.Version (HasVersion)
|
|
import Hasura.Session
|
|
|
|
|
|
import qualified Data.Environment as Env
|
|
import qualified Hasura.Tracing as Tracing
|
|
|
|
convObj
|
|
:: (UserInfoM m, QErrM m)
|
|
=> (ColumnType 'Postgres -> Value -> m S.SQLExp)
|
|
-> HM.HashMap PGCol S.SQLExp
|
|
-> HM.HashMap PGCol S.SQLExp
|
|
-> FieldInfoMap (FieldInfo 'Postgres)
|
|
-> InsObj
|
|
-> m ([PGCol], [S.SQLExp])
|
|
convObj prepFn defInsVals setInsVals fieldInfoMap insObj = do
|
|
inpInsVals <- flip HM.traverseWithKey insObj $ \c val -> do
|
|
let relWhenPGErr = "relationships can't be inserted"
|
|
colType <- askPGType fieldInfoMap c relWhenPGErr
|
|
-- if column has predefined value then throw error
|
|
when (c `elem` preSetCols) $ throwNotInsErr c
|
|
-- Encode aeson's value into prepared value
|
|
withPathK (getPGColTxt c) $ prepFn colType val
|
|
let insVals = HM.union setInsVals inpInsVals
|
|
sqlExps = HM.elems $ HM.union insVals defInsVals
|
|
inpCols = HM.keys inpInsVals
|
|
|
|
return (inpCols, sqlExps)
|
|
where
|
|
preSetCols = HM.keys setInsVals
|
|
|
|
throwNotInsErr c = do
|
|
roleName <- _uiRole <$> askUserInfo
|
|
throw400 NotSupported $ "column " <> c <<> " is not insertable"
|
|
<> " for role " <>> roleName
|
|
|
|
|
|
validateInpCols :: (MonadError QErr m) => [PGCol] -> [PGCol] -> m ()
|
|
validateInpCols inpCols updColsPerm = forM_ inpCols $ \inpCol ->
|
|
unless (inpCol `elem` updColsPerm) $ throw400 ValidationFailed $
|
|
"column " <> inpCol <<> " is not updatable"
|
|
|
|
buildConflictClause
|
|
:: (UserInfoM m, QErrM m)
|
|
=> SessVarBldr 'Postgres m
|
|
-> TableInfo 'Postgres
|
|
-> [PGCol]
|
|
-> OnConflict
|
|
-> m (ConflictClauseP1 'Postgres S.SQLExp)
|
|
buildConflictClause sessVarBldr tableInfo inpCols (OnConflict mTCol mTCons act) =
|
|
case (mTCol, mTCons, act) of
|
|
(Nothing, Nothing, CAIgnore) -> return $ CP1DoNothing Nothing
|
|
(Just col, Nothing, CAIgnore) -> do
|
|
validateCols col
|
|
return $ CP1DoNothing $ Just $ CTColumn $ getPGCols col
|
|
(Nothing, Just cons, CAIgnore) -> do
|
|
validateConstraint cons
|
|
return $ CP1DoNothing $ Just $ CTConstraint cons
|
|
(Nothing, Nothing, CAUpdate) -> throw400 UnexpectedPayload
|
|
"Expecting 'constraint' or 'constraint_on' when the 'action' is 'update'"
|
|
(Just col, Nothing, CAUpdate) -> do
|
|
validateCols col
|
|
(updFltr, preSet) <- getUpdPerm
|
|
resolvedUpdFltr <- convAnnBoolExpPartialSQL sessVarBldr updFltr
|
|
resolvedPreSet <- mapM (convPartialSQLExp sessVarBldr) preSet
|
|
return $ CP1Update (CTColumn $ getPGCols col) inpCols resolvedPreSet resolvedUpdFltr
|
|
(Nothing, Just cons, CAUpdate) -> do
|
|
validateConstraint cons
|
|
(updFltr, preSet) <- getUpdPerm
|
|
resolvedUpdFltr <- convAnnBoolExpPartialSQL sessVarBldr updFltr
|
|
resolvedPreSet <- mapM (convPartialSQLExp sessVarBldr) preSet
|
|
return $ CP1Update (CTConstraint cons) inpCols resolvedPreSet resolvedUpdFltr
|
|
(Just _, Just _, _) -> throw400 UnexpectedPayload
|
|
"'constraint' and 'constraint_on' cannot be set at a time"
|
|
where
|
|
coreInfo = _tiCoreInfo tableInfo
|
|
fieldInfoMap = _tciFieldInfoMap coreInfo
|
|
-- toSQLBool = toSQLBoolExp (S.mkQual $ _tciName coreInfo)
|
|
|
|
validateCols c = do
|
|
let targetcols = getPGCols c
|
|
void $ withPathK "constraint_on" $ indexedForM targetcols $
|
|
\pgCol -> askPGType fieldInfoMap pgCol ""
|
|
|
|
validateConstraint c = do
|
|
let tableConsNames = maybe [] toList $
|
|
fmap _cName <$> tciUniqueOrPrimaryKeyConstraints coreInfo
|
|
withPathK "constraint" $
|
|
unless (c `elem` tableConsNames) $
|
|
throw400 Unexpected $ "constraint " <> getConstraintTxt c
|
|
<<> " for table " <> _tciName coreInfo
|
|
<<> " does not exist"
|
|
|
|
getUpdPerm = do
|
|
upi <- askUpdPermInfo tableInfo
|
|
let updFiltr = upiFilter upi
|
|
preSet = upiSet upi
|
|
updCols = HS.toList $ upiCols upi
|
|
validateInpCols inpCols updCols
|
|
return (updFiltr, preSet)
|
|
|
|
|
|
convInsertQuery
|
|
:: (UserInfoM m, QErrM m, CacheRM m)
|
|
=> (Value -> m [InsObj])
|
|
-> SessVarBldr 'Postgres m
|
|
-> (ColumnType 'Postgres -> Value -> m S.SQLExp)
|
|
-> InsertQuery
|
|
-> m (InsertQueryP1 'Postgres)
|
|
convInsertQuery objsParser sessVarBldr prepFn (InsertQuery tableName val oC mRetCols) = do
|
|
|
|
insObjs <- objsParser val
|
|
|
|
-- Get the current table information
|
|
tableInfo <- askTabInfo tableName
|
|
let coreInfo = _tiCoreInfo tableInfo
|
|
|
|
-- If table is view then check if it is insertable
|
|
mutableView tableName viIsInsertable
|
|
(_tciViewInfo coreInfo) "insertable"
|
|
|
|
-- Check if the role has insert permissions
|
|
insPerm <- askInsPermInfo tableInfo
|
|
updPerm <- askPermInfo' PAUpdate tableInfo
|
|
|
|
-- Check if all dependent headers are present
|
|
validateHeaders $ ipiRequiredHeaders insPerm
|
|
|
|
let fieldInfoMap = _tciFieldInfoMap coreInfo
|
|
setInsVals = ipiSet insPerm
|
|
|
|
-- convert the returning cols into sql returing exp
|
|
mAnnRetCols <- forM mRetCols $ \retCols -> do
|
|
-- Check if select is allowed only if you specify returning
|
|
selPerm <- modifyErr (<> selNecessaryMsg) $
|
|
askSelPermInfo tableInfo
|
|
|
|
withPathK "returning" $ checkRetCols fieldInfoMap selPerm retCols
|
|
|
|
let mutOutput = mkDefaultMutFlds mAnnRetCols
|
|
|
|
let defInsVals = S.mkColDefValMap $
|
|
map pgiColumn $ getCols fieldInfoMap
|
|
allCols = getCols fieldInfoMap
|
|
insCols = HM.keys defInsVals
|
|
|
|
resolvedPreSet <- mapM (convPartialSQLExp sessVarBldr) setInsVals
|
|
|
|
insTuples <- withPathK "objects" $ indexedForM insObjs $ \obj ->
|
|
convObj prepFn defInsVals resolvedPreSet fieldInfoMap obj
|
|
let sqlExps = map snd insTuples
|
|
inpCols = HS.toList $ HS.fromList $ concatMap fst insTuples
|
|
|
|
insCheck <- convAnnBoolExpPartialSQL sessVarFromCurrentSetting (ipiCheck insPerm)
|
|
updCheck <- traverse (convAnnBoolExpPartialSQL sessVarFromCurrentSetting) (upiCheck =<< updPerm)
|
|
|
|
conflictClause <- withPathK "on_conflict" $ forM oC $ \c -> do
|
|
roleName <- askCurRole
|
|
unless (isTabUpdatable roleName tableInfo) $ throw400 PermissionDenied $
|
|
"upsert is not allowed for role " <> roleName
|
|
<<> " since update permissions are not defined"
|
|
|
|
buildConflictClause sessVarBldr tableInfo inpCols c
|
|
return $ InsertQueryP1 tableName insCols sqlExps
|
|
conflictClause (insCheck, updCheck) mutOutput allCols
|
|
where
|
|
selNecessaryMsg =
|
|
"; \"returning\" can only be used if the role has "
|
|
<> "\"select\" permission on the table"
|
|
|
|
convInsQ
|
|
:: (QErrM m, UserInfoM m, CacheRM m)
|
|
=> InsertQuery
|
|
-> m (InsertQueryP1 'Postgres, DS.Seq Q.PrepArg)
|
|
convInsQ =
|
|
runDMLP1T .
|
|
convInsertQuery (withPathK "objects" . decodeInsObjs)
|
|
sessVarFromCurrentSetting
|
|
binRHSBuilder
|
|
|
|
runInsert
|
|
:: ( HasVersion, QErrM m, UserInfoM m
|
|
, CacheRM m, MonadTx m, HasSQLGenCtx m, MonadIO m
|
|
, Tracing.MonadTrace m
|
|
)
|
|
=> Env.Environment -> InsertQuery -> m EncJSON
|
|
runInsert env q = do
|
|
res <- convInsQ q
|
|
strfyNum <- stringifyNum <$> askSQLGenCtx
|
|
execInsertQuery env strfyNum Nothing res
|
|
|
|
decodeInsObjs :: (UserInfoM m, QErrM m) => Value -> m [InsObj]
|
|
decodeInsObjs v = do
|
|
objs <- decodeValue v
|
|
when (null objs) $ throw400 UnexpectedPayload "objects should not be empty"
|
|
return objs
|