Web.Apiary.Database.Persist

Documentation

data Persist

initializer

data Migrator

Constructors

Logging Migration

Silent Migration

Unsafe Migration

NoMigrate

type With c m = forall a. (c -> m a) -> m a

initPersist :: (MonadIO m, MonadBaseControl IO m, Has Logger exts) => With Connection (LogWrapper exts m) -> Migration -> Initializer exts m (Persist : exts)

construct persist extension initializer with no connection pool.

example:

 initPersist (withSqliteConn db.sqlite) migrateAll

initPersistNoLog :: (MonadIO m, MonadBaseControl IO m) => With Connection (NoLoggingT m) -> Migration -> Initializer es m (Persist : es)

initPersistPool :: (MonadIO m, MonadBaseControl IO m, Has Logger exts) => With ConnectionPool (LogWrapper exts m) -> Migration -> Initializer exts m (Persist : exts)

initPersistPoolNoLog :: (MonadIO m, MonadBaseControl IO m) => With ConnectionPool (NoLoggingT m) -> Migration -> Initializer exts m (Persist : exts)

low level

initPersist' :: (MonadIO n, MonadBaseControl IO n) => (forall a. Extensions exts -> n a -> m a) -> With Connection n -> Migrator -> Initializer exts m (Persist : exts)

initPersistPool' :: (MonadIO n, MonadBaseControl IO n) => (forall a. Extensions exts -> n a -> m a) -> With ConnectionPool n -> Migrator -> Initializer exts m (Persist : exts)

query

runSql :: (Has Persist exts, MonadBaseControl IO m) => SqlPersistT (ActionT exts m) a -> ActionT exts m a

execute sql in action.

filter

sql

Arguments

:: (Has Persist exts, MonadBaseControl IO actM)

=> Maybe Html

documentation.

-> SqlPersistT (ActionT exts actM) a

-> (a -> Maybe b)

result check function. Nothing: fail filter, Just a: success filter and add parameter.

-> ApiaryT exts (b : prms) actM m ()

-> ApiaryT exts prms actM m ()

filter by sql query. since 0.9.0.0.