Database.Persist.MongoDB

Documentation

withMongoDBConn :: (MonadIO m, Applicative m) => Database -> HostName -> (ConnectionPool -> m b) -> m b

withMongoDBPool :: (MonadIO m, Applicative m) => Database -> HostName -> Int -> (ConnectionPool -> m b) -> m b

runMongoDBConn :: MonadIO m => AccessMode -> Action m b -> ConnectionPool -> m b

type HostName = String

Either a host name e.g., "haskell.org" or a numeric host address string consisting of a dotted decimal IPv4 address or an IPv6 address e.g., "192.168.0.1".

u :: String -> UString

data Action m a

A monad on top of m (which must be a MonadIO) that may access the database and may fail with a DB Failure

Instances

MonadTrans Action

(Applicative m, Functor m, MonadControlIO m) => PersistBackend Action m

Monad m => MonadError Failure (Action m)

Monad m => Monad (Action m)

Functor m => Functor (Action m)

(Monad m, Functor m) => Applicative (Action m)

MonadIO m => MonadIO (Action m)

MonadControlIO m => MonadControlIO (Action m)

(MonadControlIO m, Applicative m, Functor m) => MonadDB (Action m)

SinglePiece (Key Action entity)

data AccessMode

Type of reads and writes to perform

Constructors

ReadStaleOk

Read-only action, reading stale data from a slave is OK.

UnconfirmedWrites

Read-write action, slave not OK, every write is fire & forget.

ConfirmWrites GetLastError

Read-write action, slave not OK, every write is confirmed with getLastError.

master :: AccessMode

Same as ConfirmWrites []

slaveOk :: AccessMode

Same as ReadStaleOk

(=:) :: Val v => Label -> v -> Field

Field with given label and typed value

type ConnectionPool = (Pool IOError Pipe, Database)

module Database.Persist

data MongoConf

Information required to connect to a mongo database

Constructors

MongoConf

Fields

mgDatabase :: String

mgHost :: String

mgPoolSize :: Int

Instances

PersistConfig MongoConf