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5e7018b424
These are all enabled as default-extensions. PR-URL: https://github.com/hasura/graphql-engine-mono/pull/3800 GitOrigin-RevId: ab9f4b900df53d66221095c02d6b12a930ff5873
122 lines
3.5 KiB
Haskell
122 lines
3.5 KiB
Haskell
module Hasura.RQL.DML.Delete
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( validateDeleteQWith,
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validateDeleteQ,
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AnnDelG (..),
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AnnDel,
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execDeleteQuery,
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runDelete,
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)
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where
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import Control.Monad.Trans.Control (MonadBaseControl)
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import Data.Aeson
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import Data.Sequence qualified as DS
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import Database.PG.Query qualified as Q
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import Hasura.Backends.Postgres.Connection
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import Hasura.Backends.Postgres.Execute.Mutation
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import Hasura.Backends.Postgres.SQL.DML qualified as S
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import Hasura.Backends.Postgres.Translate.Returning
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import Hasura.Backends.Postgres.Types.Table
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import Hasura.Base.Error
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import Hasura.EncJSON
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import Hasura.Prelude
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import Hasura.QueryTags
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import Hasura.RQL.DML.Internal
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import Hasura.RQL.DML.Types
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import Hasura.RQL.IR.Delete
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import Hasura.RQL.Types
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import Hasura.Session
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import Hasura.Tracing qualified as Tracing
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validateDeleteQWith ::
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(UserInfoM m, QErrM m, TableInfoRM ('Postgres 'Vanilla) m) =>
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SessionVariableBuilder ('Postgres 'Vanilla) m ->
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(ColumnType ('Postgres 'Vanilla) -> Value -> m S.SQLExp) ->
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DeleteQuery ->
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m (AnnDel ('Postgres 'Vanilla))
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validateDeleteQWith
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sessVarBldr
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prepValBldr
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(DeleteQuery tableName _ rqlBE mRetCols) = do
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tableInfo <- askTabInfoSource tableName
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let coreInfo = _tiCoreInfo tableInfo
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-- If table is view then check if it deletable
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mutableView
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tableName
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viIsDeletable
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(_tciViewInfo coreInfo)
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"deletable"
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-- Check if the role has delete permissions
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delPerm <- askDelPermInfo tableInfo
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-- Check if all dependent headers are present
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validateHeaders $ dpiRequiredHeaders delPerm
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-- Check if select is allowed
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selPerm <-
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modifyErr (<> selNecessaryMsg) $
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askSelPermInfo tableInfo
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let fieldInfoMap = _tciFieldInfoMap coreInfo
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allCols = getCols fieldInfoMap
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-- convert the returning cols into sql returing exp
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mAnnRetCols <- forM mRetCols $ \retCols ->
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withPathK "returning" $ checkRetCols fieldInfoMap selPerm retCols
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-- convert the where clause
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annSQLBoolExp <-
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withPathK "where" $
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convBoolExp fieldInfoMap selPerm rqlBE sessVarBldr tableName (valueParserWithCollectableType prepValBldr)
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resolvedDelFltr <-
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convAnnBoolExpPartialSQL sessVarBldr $
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dpiFilter delPerm
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return $
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AnnDel
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tableName
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(resolvedDelFltr, annSQLBoolExp)
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(mkDefaultMutFlds mAnnRetCols)
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allCols
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where
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selNecessaryMsg =
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"; \"delete\" is only allowed if the role "
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<> "has \"select\" permission as \"where\" can't be used "
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<> "without \"select\" permission on the table"
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validateDeleteQ ::
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(QErrM m, UserInfoM m, CacheRM m) =>
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DeleteQuery ->
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m (AnnDel ('Postgres 'Vanilla), DS.Seq Q.PrepArg)
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validateDeleteQ query = do
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let source = doSource query
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tableCache :: TableCache ('Postgres 'Vanilla) <- askTableCache source
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flip runTableCacheRT (source, tableCache) $
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runDMLP1T $
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validateDeleteQWith sessVarFromCurrentSetting binRHSBuilder query
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runDelete ::
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forall m.
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( QErrM m,
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UserInfoM m,
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CacheRM m,
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HasServerConfigCtx m,
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MonadIO m,
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Tracing.MonadTrace m,
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MonadBaseControl IO m,
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MetadataM m
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) =>
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DeleteQuery ->
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m EncJSON
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runDelete q = do
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sourceConfig <- askSourceConfig @('Postgres 'Vanilla) (doSource q)
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strfyNum <- stringifyNum . _sccSQLGenCtx <$> askServerConfigCtx
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userInfo <- askUserInfo
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validateDeleteQ q
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>>= runTxWithCtx (_pscExecCtx sourceConfig) Q.ReadWrite
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. flip runReaderT emptyQueryTagsComment
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. execDeleteQuery strfyNum userInfo
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