Safe Haskell | None |
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Language | Haskell2010 |
Database.Persist.Sql.Types.Internal
Description
Breaking changes to this module are not reflected in the major version number. Prefer to import from Database.Persist.Sql instead. If you neeed something from this module, please file an issue on GitHub.
Synopsis
- class HasPersistBackend backend where
- type BaseBackend backend
- persistBackend :: backend -> BaseBackend backend
- class HasPersistBackend backend => IsPersistBackend backend where
- mkPersistBackend :: BaseBackend backend -> backend
- newtype SqlReadBackend = SqlReadBackend {}
- newtype SqlWriteBackend = SqlWriteBackend {}
- readToUnknown :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlReadBackend m a -> ReaderT SqlBackend m a
- readToWrite :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlReadBackend m a -> ReaderT SqlWriteBackend m a
- writeToUnknown :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlWriteBackend m a -> ReaderT SqlBackend m a
- type LogFunc = Loc -> LogSource -> LogLevel -> LogStr -> IO ()
- data InsertSqlResult
- data Statement = Statement {
- stmtFinalize :: IO ()
- stmtReset :: IO ()
- stmtExecute :: [PersistValue] -> IO Int64
- stmtQuery :: forall (m :: Type -> Type). MonadIO m => [PersistValue] -> Acquire (ConduitM () [PersistValue] m ())
- data IsolationLevel
- makeIsolationLevelStatement :: (Monoid s, IsString s) => IsolationLevel -> s
- data SqlBackend = SqlBackend {
- connPrepare :: Text -> IO Statement
- connInsertSql :: EntityDef -> [PersistValue] -> InsertSqlResult
- connInsertManySql :: Maybe (EntityDef -> [[PersistValue]] -> InsertSqlResult)
- connUpsertSql :: Maybe (EntityDef -> NonEmpty (FieldNameHS, FieldNameDB) -> Text -> Text)
- connPutManySql :: Maybe (EntityDef -> Int -> Text)
- connStmtMap :: StatementCache
- connClose :: IO ()
- connMigrateSql :: [EntityDef] -> (Text -> IO Statement) -> EntityDef -> IO (Either [Text] [(Bool, Text)])
- connBegin :: (Text -> IO Statement) -> Maybe IsolationLevel -> IO ()
- connCommit :: (Text -> IO Statement) -> IO ()
- connRollback :: (Text -> IO Statement) -> IO ()
- connEscapeFieldName :: FieldNameDB -> Text
- connEscapeTableName :: EntityDef -> Text
- connEscapeRawName :: Text -> Text
- connNoLimit :: Text
- connRDBMS :: Text
- connLimitOffset :: (Int, Int) -> Text -> Text
- connLogFunc :: LogFunc
- connMaxParams :: Maybe Int
- connRepsertManySql :: Maybe (EntityDef -> Int -> Text)
- connVault :: Vault
- connHooks :: SqlBackendHooks
- type SqlBackendCanRead backend = (BackendCompatible SqlBackend backend, PersistQueryRead backend, PersistStoreRead backend, PersistUniqueRead backend)
- type SqlBackendCanWrite backend = (SqlBackendCanRead backend, PersistQueryWrite backend, PersistStoreWrite backend, PersistUniqueWrite backend)
- type SqlReadT (m :: Type -> Type) a = forall backend. SqlBackendCanRead backend => ReaderT backend m a
- type SqlWriteT (m :: Type -> Type) a = forall backend. SqlBackendCanWrite backend => ReaderT backend m a
- type IsSqlBackend backend = (IsPersistBackend backend, BaseBackend backend ~ SqlBackend)
- newtype SqlBackendHooks = SqlBackendHooks {
- hookGetStatement :: SqlBackend -> Text -> Statement -> IO Statement
Documentation
class HasPersistBackend backend where Source #
Class which allows the plucking of a BaseBackend backend
from some larger type.
For example,
instance HasPersistBackend (SqlReadBackend, Int) where
type BaseBackend (SqlReadBackend, Int) = SqlBackend
persistBackend = unSqlReadBackend . fst
Associated Types
type BaseBackend backend Source #
Methods
persistBackend :: backend -> BaseBackend backend Source #
Instances
class HasPersistBackend backend => IsPersistBackend backend where Source #
Class which witnesses that backend
is essentially the same as BaseBackend backend
.
That is, they're isomorphic and backend
is just some wrapper over BaseBackend backend
.
Methods
mkPersistBackend :: BaseBackend backend -> backend Source #
This function is how we actually construct and tag a backend as having read or write capabilities.
It should be used carefully and only when actually constructing a backend
. Careless use allows us
to accidentally run a write query against a read-only database.
Instances
IsPersistBackend SqlReadBackend Source # | |
Defined in Database.Persist.Sql.Types.Internal Methods mkPersistBackend :: BaseBackend SqlReadBackend -> SqlReadBackend Source # | |
IsPersistBackend SqlWriteBackend Source # | |
Defined in Database.Persist.Sql.Types.Internal Methods mkPersistBackend :: BaseBackend SqlWriteBackend -> SqlWriteBackend Source # | |
IsPersistBackend SqlBackend Source # | |
Defined in Database.Persist.SqlBackend.Internal Methods mkPersistBackend :: BaseBackend SqlBackend -> SqlBackend Source # |
newtype SqlReadBackend Source #
An SQL backend which can only handle read queries
The constructor was exposed in 2.10.0.
Constructors
SqlReadBackend | |
Fields |
Instances
PersistQueryRead SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistQuery Methods selectSourceRes :: forall record (m1 :: Type -> Type) (m2 :: Type -> Type). (PersistRecordBackend record SqlReadBackend, MonadIO m1, MonadIO m2) => [Filter record] -> [SelectOpt record] -> ReaderT SqlReadBackend m1 (Acquire (ConduitM () (Entity record) m2 ())) Source # selectFirst :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlReadBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlReadBackend m (Maybe (Entity record)) Source # selectKeysRes :: forall (m1 :: Type -> Type) (m2 :: Type -> Type) record. (MonadIO m1, MonadIO m2, PersistRecordBackend record SqlReadBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlReadBackend m1 (Acquire (ConduitM () (Key record) m2 ())) Source # count :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlReadBackend) => [Filter record] -> ReaderT SqlReadBackend m Int Source # exists :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlReadBackend) => [Filter record] -> ReaderT SqlReadBackend m Bool Source # | |||||
HasPersistBackend SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal Associated Types
Methods persistBackend :: SqlReadBackend -> BaseBackend SqlReadBackend Source # | |||||
IsPersistBackend SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal Methods mkPersistBackend :: BaseBackend SqlReadBackend -> SqlReadBackend Source # | |||||
PersistCore SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
| |||||
PersistStoreRead SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods get :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlReadBackend) => Key record -> ReaderT SqlReadBackend m (Maybe record) Source # getMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlReadBackend) => [Key record] -> ReaderT SqlReadBackend m (Map (Key record) record) Source # | |||||
PersistUniqueRead SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistUnique Methods getBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlReadBackend) => Unique record -> ReaderT SqlReadBackend m (Maybe (Entity record)) Source # existsBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlReadBackend) => Unique record -> ReaderT SqlReadBackend m Bool Source # | |||||
BackendCompatible SqlBackend SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
FromJSON (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseJSON :: Value -> Parser (BackendKey SqlReadBackend) # parseJSONList :: Value -> Parser [BackendKey SqlReadBackend] # | |||||
ToJSON (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toJSON :: BackendKey SqlReadBackend -> Value # toEncoding :: BackendKey SqlReadBackend -> Encoding # toJSONList :: [BackendKey SqlReadBackend] -> Value # toEncodingList :: [BackendKey SqlReadBackend] -> Encoding # omitField :: BackendKey SqlReadBackend -> Bool # | |||||
Bounded (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
Enum (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods succ :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend # pred :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend # toEnum :: Int -> BackendKey SqlReadBackend # fromEnum :: BackendKey SqlReadBackend -> Int # enumFrom :: BackendKey SqlReadBackend -> [BackendKey SqlReadBackend] # enumFromThen :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> [BackendKey SqlReadBackend] # enumFromTo :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> [BackendKey SqlReadBackend] # enumFromThenTo :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> [BackendKey SqlReadBackend] # | |||||
Generic (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
Methods from :: BackendKey SqlReadBackend -> Rep (BackendKey SqlReadBackend) x # to :: Rep (BackendKey SqlReadBackend) x -> BackendKey SqlReadBackend # | |||||
Num (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (+) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # (-) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # (*) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # negate :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend # abs :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend # signum :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend # | |||||
Read (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods readsPrec :: Int -> ReadS (BackendKey SqlReadBackend) # readList :: ReadS [BackendKey SqlReadBackend] # | |||||
Integral (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods quot :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # rem :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # div :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # mod :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # quotRem :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> (BackendKey SqlReadBackend, BackendKey SqlReadBackend) # divMod :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> (BackendKey SqlReadBackend, BackendKey SqlReadBackend) # | |||||
Real (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
Show (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods showsPrec :: Int -> BackendKey SqlReadBackend -> ShowS # show :: BackendKey SqlReadBackend -> String # showList :: [BackendKey SqlReadBackend] -> ShowS # | |||||
Eq (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (==) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # (/=) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # | |||||
Ord (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods compare :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Ordering # (<) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # (<=) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # (>) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # (>=) :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> Bool # max :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # min :: BackendKey SqlReadBackend -> BackendKey SqlReadBackend -> BackendKey SqlReadBackend # | |||||
FromHttpApiData (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseUrlPiece :: Text -> Either Text (BackendKey SqlReadBackend) # parseHeader :: ByteString -> Either Text (BackendKey SqlReadBackend) # parseQueryParam :: Text -> Either Text (BackendKey SqlReadBackend) # | |||||
ToHttpApiData (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toUrlPiece :: BackendKey SqlReadBackend -> Text # toEncodedUrlPiece :: BackendKey SqlReadBackend -> Builder # toHeader :: BackendKey SqlReadBackend -> ByteString # toQueryParam :: BackendKey SqlReadBackend -> Text # toEncodedQueryParam :: BackendKey SqlReadBackend -> Builder # | |||||
PathPiece (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods fromPathPiece :: Text -> Maybe (BackendKey SqlReadBackend) # toPathPiece :: BackendKey SqlReadBackend -> Text # | |||||
PersistField (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toPersistValue :: BackendKey SqlReadBackend -> PersistValue Source # fromPersistValue :: PersistValue -> Either Text (BackendKey SqlReadBackend) Source # | |||||
PersistFieldSql (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods sqlType :: Proxy (BackendKey SqlReadBackend) -> SqlType Source # | |||||
newtype BackendKey SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
type BaseBackend SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal | |||||
type Rep (BackendKey SqlReadBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore type Rep (BackendKey SqlReadBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.17.0.0-3pLNk26I1rHDe4r6t9luV4" 'True) (C1 ('MetaCons "SqlReadBackendKey" 'PrefixI 'True) (S1 ('MetaSel ('Just "unSqlReadBackendKey") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int64))) |
newtype SqlWriteBackend Source #
An SQL backend which can handle read or write queries
The constructor was exposed in 2.10.0
Constructors
SqlWriteBackend | |
Fields |
Instances
PersistQueryRead SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistQuery Methods selectSourceRes :: forall record (m1 :: Type -> Type) (m2 :: Type -> Type). (PersistRecordBackend record SqlWriteBackend, MonadIO m1, MonadIO m2) => [Filter record] -> [SelectOpt record] -> ReaderT SqlWriteBackend m1 (Acquire (ConduitM () (Entity record) m2 ())) Source # selectFirst :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlWriteBackend m (Maybe (Entity record)) Source # selectKeysRes :: forall (m1 :: Type -> Type) (m2 :: Type -> Type) record. (MonadIO m1, MonadIO m2, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlWriteBackend m1 (Acquire (ConduitM () (Key record) m2 ())) Source # count :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> ReaderT SqlWriteBackend m Int Source # exists :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> ReaderT SqlWriteBackend m Bool Source # | |||||
PersistQueryWrite SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistQuery Methods updateWhere :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> [Update record] -> ReaderT SqlWriteBackend m () Source # deleteWhere :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Filter record] -> ReaderT SqlWriteBackend m () Source # | |||||
HasPersistBackend SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal Associated Types
Methods persistBackend :: SqlWriteBackend -> BaseBackend SqlWriteBackend Source # | |||||
IsPersistBackend SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal Methods mkPersistBackend :: BaseBackend SqlWriteBackend -> SqlWriteBackend Source # | |||||
PersistCore SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
| |||||
PersistStoreRead SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods get :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> ReaderT SqlWriteBackend m (Maybe record) Source # getMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Key record] -> ReaderT SqlWriteBackend m (Map (Key record) record) Source # | |||||
PersistStoreWrite SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods insert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => record -> ReaderT SqlWriteBackend m (Key record) Source # insert_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => record -> ReaderT SqlWriteBackend m () Source # insertMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => [record] -> ReaderT SqlWriteBackend m [Key record] Source # insertMany_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => [record] -> ReaderT SqlWriteBackend m () Source # insertEntityMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [Entity record] -> ReaderT SqlWriteBackend m () Source # insertKey :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> record -> ReaderT SqlWriteBackend m () Source # repsert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> record -> ReaderT SqlWriteBackend m () Source # repsertMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => [(Key record, record)] -> ReaderT SqlWriteBackend m () Source # replace :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> record -> ReaderT SqlWriteBackend m () Source # delete :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> ReaderT SqlWriteBackend m () Source # update :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> [Update record] -> ReaderT SqlWriteBackend m () Source # updateGet :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Key record -> [Update record] -> ReaderT SqlWriteBackend m record Source # | |||||
PersistUniqueRead SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistUnique Methods getBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Unique record -> ReaderT SqlWriteBackend m (Maybe (Entity record)) Source # existsBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Unique record -> ReaderT SqlWriteBackend m Bool Source # | |||||
PersistUniqueWrite SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistUnique Methods deleteBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend) => Unique record -> ReaderT SqlWriteBackend m () Source # insertUnique :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => record -> ReaderT SqlWriteBackend m (Maybe (Key record)) Source # insertUnique_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => record -> ReaderT SqlWriteBackend m (Maybe ()) Source # upsert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, OnlyOneUniqueKey record, SafeToInsert record) => record -> [Update record] -> ReaderT SqlWriteBackend m (Entity record) Source # upsertBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => Unique record -> record -> [Update record] -> ReaderT SqlWriteBackend m (Entity record) Source # putMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlWriteBackend, SafeToInsert record) => [record] -> ReaderT SqlWriteBackend m () Source # | |||||
BackendCompatible SqlBackend SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
FromJSON (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseJSON :: Value -> Parser (BackendKey SqlWriteBackend) # parseJSONList :: Value -> Parser [BackendKey SqlWriteBackend] # | |||||
ToJSON (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toJSON :: BackendKey SqlWriteBackend -> Value # toEncoding :: BackendKey SqlWriteBackend -> Encoding # toJSONList :: [BackendKey SqlWriteBackend] -> Value # toEncodingList :: [BackendKey SqlWriteBackend] -> Encoding # omitField :: BackendKey SqlWriteBackend -> Bool # | |||||
Bounded (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
Enum (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods succ :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # pred :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # toEnum :: Int -> BackendKey SqlWriteBackend # fromEnum :: BackendKey SqlWriteBackend -> Int # enumFrom :: BackendKey SqlWriteBackend -> [BackendKey SqlWriteBackend] # enumFromThen :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> [BackendKey SqlWriteBackend] # enumFromTo :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> [BackendKey SqlWriteBackend] # enumFromThenTo :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> [BackendKey SqlWriteBackend] # | |||||
Generic (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
Methods from :: BackendKey SqlWriteBackend -> Rep (BackendKey SqlWriteBackend) x # to :: Rep (BackendKey SqlWriteBackend) x -> BackendKey SqlWriteBackend # | |||||
Num (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (+) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # (-) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # (*) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # negate :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # abs :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # signum :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # | |||||
Read (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods readsPrec :: Int -> ReadS (BackendKey SqlWriteBackend) # readList :: ReadS [BackendKey SqlWriteBackend] # | |||||
Integral (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods quot :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # rem :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # div :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # mod :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # quotRem :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> (BackendKey SqlWriteBackend, BackendKey SqlWriteBackend) # divMod :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> (BackendKey SqlWriteBackend, BackendKey SqlWriteBackend) # | |||||
Real (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
Show (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods showsPrec :: Int -> BackendKey SqlWriteBackend -> ShowS # show :: BackendKey SqlWriteBackend -> String # showList :: [BackendKey SqlWriteBackend] -> ShowS # | |||||
Eq (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (==) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # (/=) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # | |||||
Ord (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods compare :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Ordering # (<) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # (<=) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # (>) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # (>=) :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> Bool # max :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # min :: BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend -> BackendKey SqlWriteBackend # | |||||
FromHttpApiData (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseUrlPiece :: Text -> Either Text (BackendKey SqlWriteBackend) # parseHeader :: ByteString -> Either Text (BackendKey SqlWriteBackend) # parseQueryParam :: Text -> Either Text (BackendKey SqlWriteBackend) # | |||||
ToHttpApiData (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toUrlPiece :: BackendKey SqlWriteBackend -> Text # toEncodedUrlPiece :: BackendKey SqlWriteBackend -> Builder # toHeader :: BackendKey SqlWriteBackend -> ByteString # toQueryParam :: BackendKey SqlWriteBackend -> Text # toEncodedQueryParam :: BackendKey SqlWriteBackend -> Builder # | |||||
PathPiece (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods fromPathPiece :: Text -> Maybe (BackendKey SqlWriteBackend) # | |||||
PersistField (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toPersistValue :: BackendKey SqlWriteBackend -> PersistValue Source # fromPersistValue :: PersistValue -> Either Text (BackendKey SqlWriteBackend) Source # | |||||
PersistFieldSql (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods sqlType :: Proxy (BackendKey SqlWriteBackend) -> SqlType Source # | |||||
newtype BackendKey SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
type BaseBackend SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Types.Internal | |||||
type Rep (BackendKey SqlWriteBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore type Rep (BackendKey SqlWriteBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.17.0.0-3pLNk26I1rHDe4r6t9luV4" 'True) (C1 ('MetaCons "SqlWriteBackendKey" 'PrefixI 'True) (S1 ('MetaSel ('Just "unSqlWriteBackendKey") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int64))) |
readToUnknown :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlReadBackend m a -> ReaderT SqlBackend m a Source #
Useful for running a read query against a backend with unknown capabilities.
readToWrite :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlReadBackend m a -> ReaderT SqlWriteBackend m a Source #
Useful for running a read query against a backend with read and write capabilities.
writeToUnknown :: forall (m :: Type -> Type) a. Monad m => ReaderT SqlWriteBackend m a -> ReaderT SqlBackend m a Source #
Useful for running a write query against an untagged backend with unknown capabilities.
data InsertSqlResult Source #
Constructors
ISRSingle Text | |
ISRInsertGet Text Text | |
ISRManyKeys Text [PersistValue] |
A Statement
is a representation of a database query that has been
prepared and stored on the server side.
Constructors
Statement | |
Fields
|
data IsolationLevel Source #
Please refer to the documentation for the database in question for a full overview of the semantics of the varying isolation levels
Constructors
ReadUncommitted | |
ReadCommitted | |
RepeatableRead | |
Serializable |
Instances
Bounded IsolationLevel Source # | |
Enum IsolationLevel Source # | |
Defined in Database.Persist.SqlBackend.Internal.IsolationLevel Methods succ :: IsolationLevel -> IsolationLevel # pred :: IsolationLevel -> IsolationLevel # toEnum :: Int -> IsolationLevel # fromEnum :: IsolationLevel -> Int # enumFrom :: IsolationLevel -> [IsolationLevel] # enumFromThen :: IsolationLevel -> IsolationLevel -> [IsolationLevel] # enumFromTo :: IsolationLevel -> IsolationLevel -> [IsolationLevel] # enumFromThenTo :: IsolationLevel -> IsolationLevel -> IsolationLevel -> [IsolationLevel] # | |
Show IsolationLevel Source # | |
Defined in Database.Persist.SqlBackend.Internal.IsolationLevel Methods showsPrec :: Int -> IsolationLevel -> ShowS # show :: IsolationLevel -> String # showList :: [IsolationLevel] -> ShowS # | |
Eq IsolationLevel Source # | |
Defined in Database.Persist.SqlBackend.Internal.IsolationLevel Methods (==) :: IsolationLevel -> IsolationLevel -> Bool # (/=) :: IsolationLevel -> IsolationLevel -> Bool # | |
Ord IsolationLevel Source # | |
Defined in Database.Persist.SqlBackend.Internal.IsolationLevel Methods compare :: IsolationLevel -> IsolationLevel -> Ordering # (<) :: IsolationLevel -> IsolationLevel -> Bool # (<=) :: IsolationLevel -> IsolationLevel -> Bool # (>) :: IsolationLevel -> IsolationLevel -> Bool # (>=) :: IsolationLevel -> IsolationLevel -> Bool # max :: IsolationLevel -> IsolationLevel -> IsolationLevel # min :: IsolationLevel -> IsolationLevel -> IsolationLevel # |
makeIsolationLevelStatement :: (Monoid s, IsString s) => IsolationLevel -> s Source #
data SqlBackend Source #
A SqlBackend
represents a handle or connection to a database. It
contains functions and values that allow databases to have more
optimized implementations, as well as references that benefit
performance and sharing.
Instead of using the SqlBackend
constructor directly, use the
mkSqlBackend
function.
A SqlBackend
is *not* thread-safe. You should not assume that
a SqlBackend
can be shared among threads and run concurrent queries.
This *will* result in problems. Instead, you should create a
, known as a Pool
SqlBackend
ConnectionPool
, and pass that around in
multi-threaded applications.
To run actions in the persistent
library, you should use the
runSqlConn
function. If you're using a multithreaded application, use
the runSqlPool
function.
Constructors
SqlBackend | |
Fields
|
Instances
PersistQueryRead SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistQuery Methods selectSourceRes :: forall record (m1 :: Type -> Type) (m2 :: Type -> Type). (PersistRecordBackend record SqlBackend, MonadIO m1, MonadIO m2) => [Filter record] -> [SelectOpt record] -> ReaderT SqlBackend m1 (Acquire (ConduitM () (Entity record) m2 ())) Source # selectFirst :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlBackend m (Maybe (Entity record)) Source # selectKeysRes :: forall (m1 :: Type -> Type) (m2 :: Type -> Type) record. (MonadIO m1, MonadIO m2, PersistRecordBackend record SqlBackend) => [Filter record] -> [SelectOpt record] -> ReaderT SqlBackend m1 (Acquire (ConduitM () (Key record) m2 ())) Source # count :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlBackend) => [Filter record] -> ReaderT SqlBackend m Int Source # exists :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlBackend) => [Filter record] -> ReaderT SqlBackend m Bool Source # | |||||
PersistQueryWrite SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistQuery Methods updateWhere :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlBackend) => [Filter record] -> [Update record] -> ReaderT SqlBackend m () Source # deleteWhere :: forall (m :: Type -> Type) record. (MonadIO m, PersistRecordBackend record SqlBackend) => [Filter record] -> ReaderT SqlBackend m () Source # | |||||
HasPersistBackend SqlBackend Source # | |||||
Defined in Database.Persist.SqlBackend.Internal Associated Types
Methods persistBackend :: SqlBackend -> BaseBackend SqlBackend Source # | |||||
IsPersistBackend SqlBackend Source # | |||||
Defined in Database.Persist.SqlBackend.Internal Methods mkPersistBackend :: BaseBackend SqlBackend -> SqlBackend Source # | |||||
PersistCore SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
| |||||
PersistStoreRead SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods get :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> ReaderT SqlBackend m (Maybe record) Source # getMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => [Key record] -> ReaderT SqlBackend m (Map (Key record) record) Source # | |||||
PersistStoreWrite SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods insert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => record -> ReaderT SqlBackend m (Key record) Source # insert_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => record -> ReaderT SqlBackend m () Source # insertMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => [record] -> ReaderT SqlBackend m [Key record] Source # insertMany_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => [record] -> ReaderT SqlBackend m () Source # insertEntityMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => [Entity record] -> ReaderT SqlBackend m () Source # insertKey :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> record -> ReaderT SqlBackend m () Source # repsert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> record -> ReaderT SqlBackend m () Source # repsertMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => [(Key record, record)] -> ReaderT SqlBackend m () Source # replace :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> record -> ReaderT SqlBackend m () Source # delete :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> ReaderT SqlBackend m () Source # update :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> [Update record] -> ReaderT SqlBackend m () Source # updateGet :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Key record -> [Update record] -> ReaderT SqlBackend m record Source # | |||||
PersistUniqueRead SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistUnique Methods getBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Unique record -> ReaderT SqlBackend m (Maybe (Entity record)) Source # existsBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Unique record -> ReaderT SqlBackend m Bool Source # | |||||
PersistUniqueWrite SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistUnique Methods deleteBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend) => Unique record -> ReaderT SqlBackend m () Source # insertUnique :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => record -> ReaderT SqlBackend m (Maybe (Key record)) Source # insertUnique_ :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => record -> ReaderT SqlBackend m (Maybe ()) Source # upsert :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, OnlyOneUniqueKey record, SafeToInsert record) => record -> [Update record] -> ReaderT SqlBackend m (Entity record) Source # upsertBy :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => Unique record -> record -> [Update record] -> ReaderT SqlBackend m (Entity record) Source # putMany :: forall record (m :: Type -> Type). (MonadIO m, PersistRecordBackend record SqlBackend, SafeToInsert record) => [record] -> ReaderT SqlBackend m () Source # | |||||
BackendCompatible SqlBackend SqlReadBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
BackendCompatible SqlBackend SqlWriteBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
BackendCompatible SqlBackend SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods | |||||
FromJSON (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseJSON :: Value -> Parser (BackendKey SqlBackend) # parseJSONList :: Value -> Parser [BackendKey SqlBackend] # | |||||
ToJSON (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toJSON :: BackendKey SqlBackend -> Value # toEncoding :: BackendKey SqlBackend -> Encoding # toJSONList :: [BackendKey SqlBackend] -> Value # toEncodingList :: [BackendKey SqlBackend] -> Encoding # omitField :: BackendKey SqlBackend -> Bool # | |||||
Bounded (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
Enum (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods succ :: BackendKey SqlBackend -> BackendKey SqlBackend # pred :: BackendKey SqlBackend -> BackendKey SqlBackend # toEnum :: Int -> BackendKey SqlBackend # fromEnum :: BackendKey SqlBackend -> Int # enumFrom :: BackendKey SqlBackend -> [BackendKey SqlBackend] # enumFromThen :: BackendKey SqlBackend -> BackendKey SqlBackend -> [BackendKey SqlBackend] # enumFromTo :: BackendKey SqlBackend -> BackendKey SqlBackend -> [BackendKey SqlBackend] # enumFromThenTo :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend -> [BackendKey SqlBackend] # | |||||
Generic (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Associated Types
Methods from :: BackendKey SqlBackend -> Rep (BackendKey SqlBackend) x # to :: Rep (BackendKey SqlBackend) x -> BackendKey SqlBackend # | |||||
Num (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (+) :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # (-) :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # (*) :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # negate :: BackendKey SqlBackend -> BackendKey SqlBackend # abs :: BackendKey SqlBackend -> BackendKey SqlBackend # signum :: BackendKey SqlBackend -> BackendKey SqlBackend # fromInteger :: Integer -> BackendKey SqlBackend # | |||||
Read (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods readsPrec :: Int -> ReadS (BackendKey SqlBackend) # readList :: ReadS [BackendKey SqlBackend] # | |||||
Integral (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods quot :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # rem :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # div :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # mod :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # quotRem :: BackendKey SqlBackend -> BackendKey SqlBackend -> (BackendKey SqlBackend, BackendKey SqlBackend) # divMod :: BackendKey SqlBackend -> BackendKey SqlBackend -> (BackendKey SqlBackend, BackendKey SqlBackend) # toInteger :: BackendKey SqlBackend -> Integer # | |||||
Real (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toRational :: BackendKey SqlBackend -> Rational # | |||||
Show (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods showsPrec :: Int -> BackendKey SqlBackend -> ShowS # show :: BackendKey SqlBackend -> String # showList :: [BackendKey SqlBackend] -> ShowS # | |||||
Eq (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods (==) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # (/=) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # | |||||
Ord (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods compare :: BackendKey SqlBackend -> BackendKey SqlBackend -> Ordering # (<) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # (<=) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # (>) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # (>=) :: BackendKey SqlBackend -> BackendKey SqlBackend -> Bool # max :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # min :: BackendKey SqlBackend -> BackendKey SqlBackend -> BackendKey SqlBackend # | |||||
FromHttpApiData (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods parseUrlPiece :: Text -> Either Text (BackendKey SqlBackend) # parseHeader :: ByteString -> Either Text (BackendKey SqlBackend) # parseQueryParam :: Text -> Either Text (BackendKey SqlBackend) # | |||||
ToHttpApiData (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toUrlPiece :: BackendKey SqlBackend -> Text # toEncodedUrlPiece :: BackendKey SqlBackend -> Builder # toHeader :: BackendKey SqlBackend -> ByteString # toQueryParam :: BackendKey SqlBackend -> Text # | |||||
PathPiece (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods fromPathPiece :: Text -> Maybe (BackendKey SqlBackend) # toPathPiece :: BackendKey SqlBackend -> Text # | |||||
PersistField (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods toPersistValue :: BackendKey SqlBackend -> PersistValue Source # fromPersistValue :: PersistValue -> Either Text (BackendKey SqlBackend) Source # | |||||
PersistFieldSql (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore Methods sqlType :: Proxy (BackendKey SqlBackend) -> SqlType Source # | |||||
newtype BackendKey SqlBackend Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore | |||||
type BaseBackend SqlBackend Source # | |||||
Defined in Database.Persist.SqlBackend.Internal | |||||
type Rep (BackendKey SqlBackend) Source # | |||||
Defined in Database.Persist.Sql.Orphan.PersistStore type Rep (BackendKey SqlBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.17.0.0-3pLNk26I1rHDe4r6t9luV4" 'True) (C1 ('MetaCons "SqlBackendKey" 'PrefixI 'True) (S1 ('MetaSel ('Just "unSqlBackendKey") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int64))) |
type SqlBackendCanRead backend = (BackendCompatible SqlBackend backend, PersistQueryRead backend, PersistStoreRead backend, PersistUniqueRead backend) Source #
A constraint synonym which witnesses that a backend is SQL and can run read queries.
type SqlBackendCanWrite backend = (SqlBackendCanRead backend, PersistQueryWrite backend, PersistStoreWrite backend, PersistUniqueWrite backend) Source #
A constraint synonym which witnesses that a backend is SQL and can run read and write queries.
type SqlReadT (m :: Type -> Type) a = forall backend. SqlBackendCanRead backend => ReaderT backend m a Source #
Like SqlPersistT
but compatible with any SQL backend which can handle read queries.
type SqlWriteT (m :: Type -> Type) a = forall backend. SqlBackendCanWrite backend => ReaderT backend m a Source #
Like SqlPersistT
but compatible with any SQL backend which can handle read and write queries.
type IsSqlBackend backend = (IsPersistBackend backend, BaseBackend backend ~ SqlBackend) Source #
A backend which is a wrapper around SqlBackend
.
newtype SqlBackendHooks Source #
Constructors
SqlBackendHooks | |
Fields
|