graphql-engine/server/src-lib/Hasura/Backends/Postgres/DDL.hs
Vladimir Ciobanu 281cb771ff server: add MSSQL support
Co-authored-by: Rakesh Emmadi <12475069+rakeshkky@users.noreply.github.com>
Co-authored-by: Antoine Leblanc <1618949+nicuveo@users.noreply.github.com>
Co-authored-by: Vamshi Surabhi <6562944+0x777@users.noreply.github.com>
Co-authored-by: Aravind K P <8335904+scriptonist@users.noreply.github.com>
GitOrigin-RevId: 699c453b9692e1b822f393f23ff5e6db4e010d57
2021-02-23 17:38:36 +00:00

51 lines
1.9 KiB
Haskell

module Hasura.Backends.Postgres.DDL
( parseCollectableType
, module M
)
where
import Data.Aeson
import Hasura.Backends.Postgres.SQL.DML
import Hasura.Backends.Postgres.Translate.Column
import Hasura.Prelude
import Hasura.RQL.IR.BoolExp
import Hasura.RQL.Types.Column
import Hasura.RQL.Types.Error
import Hasura.SQL.Backend
import Hasura.SQL.Types
import Hasura.Server.Utils
import Hasura.Session
import Hasura.Backends.Postgres.DDL.BoolExp as M
import Hasura.Backends.Postgres.DDL.Field as M
import Hasura.Backends.Postgres.DDL.Function as M
import Hasura.Backends.Postgres.DDL.Source as M
import Hasura.Backends.Postgres.DDL.Table as M
parseCollectableType
:: (MonadError QErr m)
=> CollectableType (ColumnType 'Postgres)
-> Value -> m (PartialSQLExp 'Postgres)
parseCollectableType pgType = \case
-- When it is a special variable
String t
| isSessionVariable t -> return $ mkTypedSessionVar pgType $ mkSessionVariable t
| isReqUserId t -> return $ mkTypedSessionVar pgType userIdHeader
-- Typical value as Aeson's value
val -> case pgType of
CollectableTypeScalar cvType ->
PSESQLExp . toTxtValue . ColumnValue cvType <$> parseScalarValueColumnType cvType val
CollectableTypeArray ofType -> do
vals <- runAesonParser parseJSON val
scalarValues <- parseScalarValuesColumnType ofType vals
return . PSESQLExp $ SETyAnn
(SEArray $ map (toTxtValue . ColumnValue ofType) scalarValues)
(mkTypeAnn $ CollectableTypeArray (unsafePGColumnToBackend ofType))
mkTypedSessionVar
:: CollectableType (ColumnType 'Postgres)
-> SessionVariable -> PartialSQLExp 'Postgres
mkTypedSessionVar columnType =
PSESessVar (unsafePGColumnToBackend <$> columnType)