mirror of
https://github.com/hasura/graphql-engine.git
synced 2024-12-30 10:54:50 +03:00
9337edf096
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/3563 GitOrigin-RevId: e35aafbd210d526ed53db7088e1a47f89f0b9c44
61 lines
2.2 KiB
Haskell
61 lines
2.2 KiB
Haskell
-- | Postgres DDL
|
|
--
|
|
-- Implements the DDL related methods of the 'Hasura.RQL.Types.Metadata.Backend.BackendMetadata'
|
|
-- type class for the Postgres backend, which provides an interface for fetching information about
|
|
-- the objects in the database, such as tables, relationships, etc.
|
|
module Hasura.Backends.Postgres.DDL
|
|
( parseCollectableType,
|
|
module M,
|
|
)
|
|
where
|
|
|
|
import Data.Aeson
|
|
import Hasura.Backends.Postgres.DDL.BoolExp as M
|
|
import Hasura.Backends.Postgres.DDL.ComputedField as M
|
|
import Hasura.Backends.Postgres.DDL.EventTrigger 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
|
|
import Hasura.Backends.Postgres.SQL.DML
|
|
import Hasura.Backends.Postgres.Translate.Column
|
|
import Hasura.Backends.Postgres.Types.Column
|
|
import Hasura.Base.Error
|
|
import Hasura.Prelude
|
|
import Hasura.RQL.IR.BoolExp
|
|
import Hasura.RQL.Types.Backend
|
|
import Hasura.RQL.Types.Column
|
|
import Hasura.SQL.Backend
|
|
import Hasura.SQL.Types
|
|
import Hasura.Server.Utils
|
|
import Hasura.Session
|
|
|
|
parseCollectableType ::
|
|
forall pgKind m.
|
|
(Backend ('Postgres pgKind), MonadError QErr m) =>
|
|
CollectableType (ColumnType ('Postgres pgKind)) ->
|
|
Value ->
|
|
m (PartialSQLExp ('Postgres pgKind))
|
|
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 pgKind)) ->
|
|
SessionVariable ->
|
|
PartialSQLExp ('Postgres pgKind)
|
|
mkTypedSessionVar columnType =
|
|
PSESessVar (unsafePGColumnToBackend <$> columnType)
|