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https://github.com/hasura/graphql-engine.git
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b70f2a1434
PR-URL: https://github.com/hasura/graphql-engine-mono/pull/5253 GitOrigin-RevId: ab9dd99ce654cda299504bfe6be2f3240c2f82e2
111 lines
4.0 KiB
Haskell
111 lines
4.0 KiB
Haskell
{-# LANGUAGE UndecidableInstances #-}
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module Hasura.RQL.IR.Root
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( SourceConfigWith (..),
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RootField (..),
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MutationDB (..),
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ActionQuery (..),
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ActionMutation (..),
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QueryRootField,
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MutationRootField,
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SubscriptionRootField,
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QueryDBRoot (..),
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MutationDBRoot (..),
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RemoteRelationshipField (..),
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)
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where
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import Data.Aeson.Ordered qualified as JO
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import Data.Kind (Type)
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import Hasura.Prelude
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import Hasura.RQL.IR.Action
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import Hasura.RQL.IR.Delete
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import Hasura.RQL.IR.Insert
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import Hasura.RQL.IR.RemoteSchema
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import Hasura.RQL.IR.Select
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import Hasura.RQL.IR.Update
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import Hasura.RQL.Types.Backend qualified as RQL
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import Hasura.RQL.Types.Common qualified as RQL
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import Hasura.RQL.Types.QueryTags qualified as RQL
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import Hasura.RQL.Types.RemoteSchema qualified as RQL
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import Hasura.SQL.AnyBackend qualified as AB
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import Hasura.SQL.Backend
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data SourceConfigWith (db :: BackendType -> Type) (b :: BackendType)
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= SourceConfigWith (RQL.SourceConfig b) (Maybe RQL.QueryTagsConfig) (db b)
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data RootField (db :: BackendType -> Type) remote action raw where
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RFDB ::
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RQL.SourceName ->
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AB.AnyBackend (SourceConfigWith db) ->
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RootField db remote action raw
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RFRemote :: remote -> RootField db remote action raw
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RFAction :: action -> RootField db remote action raw
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RFRaw :: raw -> RootField db remote action raw
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RFMulti :: [RootField db remote action raw] -> RootField db remote action raw
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data MutationDB (b :: BackendType) (r :: Type) v
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= MDBInsert (AnnotatedInsert b r v)
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| MDBUpdate (AnnotatedUpdateG b r v)
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| MDBDelete (AnnDelG b r v)
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| -- | This represents a VOLATILE function, and is AnnSimpleSelG for easy
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-- re-use of non-VOLATILE function tracking code.
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MDBFunction RQL.JsonAggSelect (AnnSimpleSelectG b r v)
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deriving stock (Generic, Functor, Foldable, Traversable)
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data ActionQuery (r :: Type)
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= AQQuery (AnnActionExecution r)
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| AQAsync (AnnActionAsyncQuery ('Postgres 'Vanilla) r)
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deriving stock (Functor, Foldable, Traversable)
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data ActionMutation (r :: Type)
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= AMSync (AnnActionExecution r)
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| AMAsync AnnActionMutationAsync
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-- The `db` type argument of @RootField@ expects only one type argument, the backend `b`, as not all
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-- types stored in a RootField will have a second parameter like @QueryDB@ does: they all only have
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-- in common the fact that they're parametric over the backend. To define @QueryRootField@ in terms
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-- of @QueryDB@ (and likewise for mutations), we need a type-level function `b -> QueryDB b (v
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-- b)`. Sadly, neither type synonyms nor type families may be partially applied. Hence the need for
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-- @QueryDBRoot@ and @MutationDBRoot@.
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newtype QueryDBRoot r v b = QDBR (QueryDB b r (v b))
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newtype MutationDBRoot r v b = MDBR (MutationDB b r (v b))
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-- | IR of a remote relationship. A remote relationship currently can be to
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-- either a remote schema or a database's table. See RemoteSourceSelect for
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-- explanation on 'vf'.
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data RemoteRelationshipField vf
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= RemoteSchemaField (RemoteSchemaSelect (RemoteRelationshipField vf))
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| -- | AnyBackend is used here to capture a relationship to an arbitrary target
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RemoteSourceField (AB.AnyBackend (RemoteSourceSelect (RemoteRelationshipField vf) vf))
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-- | Represents a query root field to an action
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type QueryActionRoot v =
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ActionQuery (RemoteRelationshipField v)
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-- | Represents a mutation root field to an action
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type MutationActionRoot v =
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ActionMutation (RemoteRelationshipField v)
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type QueryRootField v =
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RootField
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(QueryDBRoot (RemoteRelationshipField v) v)
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(RemoteSchemaRootField (RemoteRelationshipField v) RQL.RemoteSchemaVariable)
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(QueryActionRoot v)
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JO.Value
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type MutationRootField v =
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RootField
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(MutationDBRoot (RemoteRelationshipField v) v)
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(RemoteSchemaRootField (RemoteRelationshipField v) RQL.RemoteSchemaVariable)
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(MutationActionRoot v)
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JO.Value
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type SubscriptionRootField v =
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RootField
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(QueryDBRoot (RemoteRelationshipField v) v)
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(RemoteSchemaRootField (RemoteRelationshipField v) RQL.RemoteSchemaVariable)
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(QueryActionRoot v)
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JO.Value
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