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c980af1b8f
This moves `MkTypename` and `NamingCase` into their own modules, with the intent of reducing the scope of the schema parsers code, and trying to reduce imports of large modules when small ones will do. PR-URL: https://github.com/hasura/graphql-engine-mono/pull/4978 GitOrigin-RevId: 19541257fe010035390f6183a4eaa37bae0d3ca1
113 lines
3.4 KiB
Haskell
113 lines
3.4 KiB
Haskell
-- | MSSQL DDL
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--
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-- Implements the DDL related methods of the
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-- 'Hasura.RQL.Types.Metadata.Backend.BackendMetadata' type class
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-- for the MSSQL backend, which provides an interface for fetching information about
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-- the objects in the database, such as tables, relationships, etc.
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--
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-- The actual instance is defined in "Hasura.Backends.MSSQL.Instances.Metadata".
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module Hasura.Backends.MSSQL.DDL
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( buildComputedFieldInfo,
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fetchAndValidateEnumValues,
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buildFunctionInfo,
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updateColumnInEventTrigger,
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parseCollectableType,
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module M,
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)
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where
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import Data.Aeson
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import Hasura.Backends.MSSQL.DDL.BoolExp as M
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import Hasura.Backends.MSSQL.DDL.Source as M
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import Hasura.Backends.MSSQL.Types.Internal qualified as MT
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import Hasura.Base.Error
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import Hasura.GraphQL.Schema.NamingCase
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import Hasura.Prelude
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import Hasura.RQL.IR.BoolExp
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import Hasura.RQL.Types.Backend
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import Hasura.RQL.Types.Column
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import Hasura.RQL.Types.Common
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import Hasura.RQL.Types.ComputedField
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import Hasura.RQL.Types.EventTrigger
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import Hasura.RQL.Types.Function
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import Hasura.RQL.Types.SchemaCache
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import Hasura.RQL.Types.Table
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import Hasura.SQL.Backend
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import Hasura.SQL.Types
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import Hasura.Server.Utils
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import Hasura.Session
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buildComputedFieldInfo ::
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(MonadError QErr m) =>
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HashSet (TableName 'MSSQL) ->
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TableName 'MSSQL ->
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HashSet (Column 'MSSQL) ->
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ComputedFieldName ->
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ComputedFieldDefinition 'MSSQL ->
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RawFunctionInfo 'MSSQL ->
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Comment ->
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m (ComputedFieldInfo 'MSSQL)
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buildComputedFieldInfo _ _ _ _ _ _ _ =
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throw400 NotSupported "Computed fields aren't supported for MSSQL sources"
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fetchAndValidateEnumValues ::
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(Monad m) =>
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SourceConfig 'MSSQL ->
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TableName 'MSSQL ->
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Maybe (PrimaryKey 'MSSQL (RawColumnInfo 'MSSQL)) ->
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[RawColumnInfo 'MSSQL] ->
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m (Either QErr EnumValues)
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fetchAndValidateEnumValues _ _ _ _ =
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runExceptT $
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throw400 NotSupported "Enum tables are not supported for MSSQL sources"
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buildFunctionInfo ::
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(MonadError QErr m) =>
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SourceName ->
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FunctionName 'MSSQL ->
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SystemDefined ->
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FunctionConfig ->
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FunctionPermissionsMap ->
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RawFunctionInfo 'MSSQL ->
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Maybe Text ->
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NamingCase ->
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m (FunctionInfo 'MSSQL, SchemaDependency)
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buildFunctionInfo _ _ _ _ _ _ _ _ =
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throw400 NotSupported "SQL Functions are not supported for MSSQL source"
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updateColumnInEventTrigger ::
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TableName 'MSSQL ->
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Column 'MSSQL ->
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Column 'MSSQL ->
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TableName 'MSSQL ->
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EventTriggerConf 'MSSQL ->
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EventTriggerConf 'MSSQL
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updateColumnInEventTrigger _ _ _ _ = id
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parseCollectableType ::
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(MonadError QErr m) =>
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CollectableType (ColumnType 'MSSQL) ->
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Value ->
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m (PartialSQLExp 'MSSQL)
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parseCollectableType collectableType = \case
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String t
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| isSessionVariable t -> pure $ mkTypedSessionVar collectableType $ mkSessionVariable t
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| isReqUserId t -> pure $ mkTypedSessionVar collectableType userIdHeader
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val -> case collectableType of
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CollectableTypeScalar scalarType ->
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PSESQLExp . MT.ValueExpression <$> parseScalarValueColumnType scalarType val
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CollectableTypeArray _ ->
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throw400 NotSupported "Array types are not supported in MSSQL backend"
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mkTypedSessionVar ::
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CollectableType (ColumnType 'MSSQL) ->
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SessionVariable ->
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PartialSQLExp 'MSSQL
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mkTypedSessionVar columnType =
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PSESessVar (msColumnTypeToScalarType <$> columnType)
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msColumnTypeToScalarType :: ColumnType 'MSSQL -> ScalarType 'MSSQL
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msColumnTypeToScalarType = \case
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ColumnScalar scalarType -> scalarType
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ColumnEnumReference _ -> MT.TextType
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