persistent-2.14.6.1: Type-safe, multi-backend data serialization.
Safe HaskellSafe-Inferred
LanguageHaskell2010

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

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 #

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.

newtype SqlReadBackend Source #

An SQL backend which can only handle read queries

The constructor was exposed in 2.10.0.

Instances

Instances details
PersistQueryRead SqlReadBackend Source # 
Instance details

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 # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

Associated Types

type BaseBackend SqlReadBackend Source #

IsPersistBackend SqlReadBackend Source # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

PersistCore SqlReadBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

data BackendKey SqlReadBackend Source #

PersistStoreRead SqlReadBackend Source # 
Instance details

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 # 
Instance details

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 # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromJSON (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToJSON (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Bounded (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Enum (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Generic (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

type Rep (BackendKey SqlReadBackend) :: Type -> Type #

Num (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Read (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Integral (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Real (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Show (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Eq (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Ord (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromHttpApiData (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToHttpApiData (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PathPiece (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistField (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistFieldSql (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

newtype BackendKey SqlReadBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type BaseBackend SqlReadBackend Source # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

type Rep (BackendKey SqlReadBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type Rep (BackendKey SqlReadBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.14.6.1-xgENLTHBf06k1BlJ0bdD3" '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

Instances

Instances details
PersistQueryRead SqlWriteBackend Source # 
Instance details

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 # 
Instance details

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 # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

Associated Types

type BaseBackend SqlWriteBackend Source #

IsPersistBackend SqlWriteBackend Source # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

PersistCore SqlWriteBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

data BackendKey SqlWriteBackend Source #

PersistStoreRead SqlWriteBackend Source # 
Instance details

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 # 
Instance details

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 # 
Instance details

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 # 
Instance details

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 # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromJSON (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToJSON (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Bounded (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Enum (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Generic (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

type Rep (BackendKey SqlWriteBackend) :: Type -> Type #

Num (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Read (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Integral (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Real (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Show (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Eq (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Ord (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromHttpApiData (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToHttpApiData (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PathPiece (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistField (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistFieldSql (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

newtype BackendKey SqlWriteBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type BaseBackend SqlWriteBackend Source # 
Instance details

Defined in Database.Persist.Sql.Types.Internal

type Rep (BackendKey SqlWriteBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type Rep (BackendKey SqlWriteBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.14.6.1-xgENLTHBf06k1BlJ0bdD3" 'True) (C1 ('MetaCons "SqlWriteBackendKey" 'PrefixI 'True) (S1 ('MetaSel ('Just "unSqlWriteBackendKey") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int64)))

readToUnknown :: Monad m => ReaderT SqlReadBackend m a -> ReaderT SqlBackend m a Source #

Useful for running a read query against a backend with unknown capabilities.

readToWrite :: 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 :: Monad m => ReaderT SqlWriteBackend m a -> ReaderT SqlBackend m a Source #

Useful for running a write query against an untagged backend with unknown capabilities.

type LogFunc = Loc -> LogSource -> LogLevel -> LogStr -> IO () Source #

data Statement Source #

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 isloation levels

Instances

Instances details
Bounded IsolationLevel Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal.IsolationLevel

Enum IsolationLevel Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal.IsolationLevel

Show IsolationLevel Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal.IsolationLevel

Eq IsolationLevel Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal.IsolationLevel

Ord IsolationLevel Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal.IsolationLevel

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 Pool SqlBackend, known as a 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

  • connPrepare :: Text -> IO Statement

    This function should prepare a Statement in the target database, which should allow for efficient query reuse.

  • connInsertSql :: EntityDef -> [PersistValue] -> InsertSqlResult

    This function generates the SQL and values necessary for performing an insert against the database.

  • connInsertManySql :: Maybe (EntityDef -> [[PersistValue]] -> InsertSqlResult)

    SQL for inserting many rows and returning their primary keys, for backends that support this functionality. If Nothing, rows will be inserted one-at-a-time using SqlBackend.

  • connUpsertSql :: Maybe (EntityDef -> NonEmpty (FieldNameHS, FieldNameDB) -> Text -> Text)

    Some databases support performing UPSERT _and_ RETURN entity in a single call.

    This field when set will be used to generate the UPSERT+RETURN sql given * an entity definition * updates to be run on unique key(s) collision

    When left as Nothing, we find the unique key from entity def before * trying to fetch an entity by said key * perform an update when result found, else issue an insert * return new entity from db

    Since: 2.6

  • connPutManySql :: Maybe (EntityDef -> Int -> Text)

    Some databases support performing bulk UPSERT, specifically "insert or replace many records" in a single call.

    This field when set, given * an entity definition * number of records to be inserted should produce a PUT MANY sql with placeholders for records

    When left as Nothing, we default to using defaultPutMany.

    Since: 2.8.1

  • connStmtMap :: StatementCache

    A reference to the cache of statements. Statements are keyed by the Text queries that generated them.

  • connClose :: IO ()

    Close the underlying connection.

  • connMigrateSql :: [EntityDef] -> (Text -> IO Statement) -> EntityDef -> IO (Either [Text] [(Bool, Text)])

    This function returns the migrations required to include the EntityDef parameter in the [EntityDef] database. This might include creating a new table if the entity is not present, or altering an existing table if it is.

  • connBegin :: (Text -> IO Statement) -> Maybe IsolationLevel -> IO ()

    A function to begin a transaction for the underlying database.

  • connCommit :: (Text -> IO Statement) -> IO ()

    A function to commit a transaction to the underlying database.

  • connRollback :: (Text -> IO Statement) -> IO ()

    A function to roll back a transaction on the underlying database.

  • connEscapeFieldName :: FieldNameDB -> Text

    A function to extract and escape the name of the column corresponding to the provided field.

    Since: 2.12.0.0

  • connEscapeTableName :: EntityDef -> Text

    A function to extract and escape the name of the table corresponding to the provided entity. PostgreSQL uses this to support schemas.

    Since: 2.12.0.0

  • connEscapeRawName :: Text -> Text

    A function to escape raw DB identifiers. MySQL uses backticks, while PostgreSQL uses quotes, and so on.

    Since: 2.12.0.0

  • connNoLimit :: Text
     
  • connRDBMS :: Text

    A tag displaying what database the SqlBackend is for. Can be used to differentiate features in downstream libraries for different database backends.

  • connLimitOffset :: (Int, Int) -> Text -> Text

    Attach a 'LIMIT/OFFSET' clause to a SQL query. Note that LIMIT/OFFSET is problematic for performance, and indexed range queries are the superior way to offer pagination.

  • connLogFunc :: LogFunc

    A log function for the SqlBackend to use.

  • connMaxParams :: Maybe Int

    Some databases (probably only Sqlite) have a limit on how many question-mark parameters may be used in a statement

    Since: 2.6.1

  • connRepsertManySql :: Maybe (EntityDef -> Int -> Text)

    Some databases support performing bulk an atomic+bulk INSERT where constraint conflicting entities can replace existing entities.

    This field when set, given * an entity definition * number of records to be inserted should produce a INSERT sql with placeholders for primary+record fields

    When left as Nothing, we default to using defaultRepsertMany.

    Since: 2.9.0

  • connVault :: Vault

    Carry arbitrary payloads for the connection that may be used to propagate information into hooks.

  • connHooks :: SqlBackendHooks

    Instrumentation hooks that may be used to track the behaviour of a backend.

Instances

Instances details
PersistQueryRead SqlBackend Source # 
Instance details

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 # 
Instance details

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 # 
Instance details

Defined in Database.Persist.SqlBackend.Internal

Associated Types

type BaseBackend SqlBackend Source #

IsPersistBackend SqlBackend Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal

PersistCore SqlBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

data BackendKey SqlBackend Source #

PersistStoreRead SqlBackend Source # 
Instance details

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 # 
Instance details

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 # 
Instance details

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 # 
Instance details

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 # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

BackendCompatible SqlBackend SqlWriteBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

BackendCompatible SqlBackend SqlBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromJSON (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToJSON (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Bounded (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Enum (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Generic (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Associated Types

type Rep (BackendKey SqlBackend) :: Type -> Type #

Num (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Read (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Integral (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Real (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Show (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Eq (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

Ord (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

FromHttpApiData (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

ToHttpApiData (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PathPiece (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistField (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

PersistFieldSql (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

newtype BackendKey SqlBackend Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type BaseBackend SqlBackend Source # 
Instance details

Defined in Database.Persist.SqlBackend.Internal

type Rep (BackendKey SqlBackend) Source # 
Instance details

Defined in Database.Persist.Sql.Orphan.PersistStore

type Rep (BackendKey SqlBackend) = D1 ('MetaData "BackendKey" "Database.Persist.Sql.Orphan.PersistStore" "persistent-2.14.6.1-xgENLTHBf06k1BlJ0bdD3" '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 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 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.