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45 lines
1.4 KiB
Haskell
45 lines
1.4 KiB
Haskell
module Hasura.RQL.DDL.Relationship.Rename
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(runRenameRel)
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where
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import Hasura.Prelude
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import qualified Data.HashMap.Strict as Map
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import Data.Text.Extended
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import Hasura.Base.Error
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import Hasura.EncJSON
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import Hasura.RQL.DDL.Schema (renameRelationshipInMetadata)
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import Hasura.RQL.Types
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renameRelP2
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:: forall b m
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. (QErrM m, CacheRM m, BackendMetadata b)
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=> SourceName -> TableName b -> RelName -> RelInfo b -> m MetadataModifier
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renameRelP2 source qt newRN relInfo = withNewInconsistentObjsCheck $ do
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tabInfo <- askTableCoreInfo @b source qt
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-- check for conflicts in fieldInfoMap
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case Map.lookup (fromRel newRN) $ _tciFieldInfoMap tabInfo of
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Nothing -> return ()
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Just _ ->
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throw400 AlreadyExists $ "cannot rename relationship " <> oldRN
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<<> " to " <> newRN <<> " in table " <> qt <<>
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" as a column/relationship with the name already exists"
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-- update metadata
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execWriterT $ renameRelationshipInMetadata @b source qt oldRN (riType relInfo) newRN
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where
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oldRN = riName relInfo
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runRenameRel
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:: forall b m
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. (MonadError QErr m, CacheRWM m, MetadataM m, BackendMetadata b)
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=> RenameRel b -> m EncJSON
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runRenameRel (RenameRel source qt rn newRN) = do
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tabInfo <- askTableCoreInfo @b source qt
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ri <- askRelType (_tciFieldInfoMap tabInfo) rn ""
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withNewInconsistentObjsCheck $
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renameRelP2 source qt newRN ri >>= buildSchemaCache
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pure successMsg
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