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74 lines
1.7 KiB
Haskell
74 lines
1.7 KiB
Haskell
module Hasql
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(
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-- * Pool
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Pool.Pool,
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Pool.Settings(..),
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Pool.withPool,
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-- * Transaction
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Transaction.Transaction,
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-- ** Execution
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-- |
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-- Functions for execution of transactions.
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-- They determine the transactional locking strategy of the database.
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TransactionRunner,
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withoutLocking,
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read,
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write,
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-- ** Transactions
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Transaction.StatementRunner,
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Transaction.execute,
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Transaction.executeAndCount,
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Transaction.executeAndFetch,
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Transaction.executeAndFetchWithCursor,
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-- ** Statement Quasi-Quoter
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QQ.q,
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-- ** Error
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Transaction.Error(..),
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-- ** Isolation
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Backend.IsolationLevel(..),
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-- ** Locking Levels
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Transaction.WithoutLocking,
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Transaction.Read,
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Transaction.Write,
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-- ** Privileges
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Transaction.CursorsPrivilege,
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Transaction.WritingPrivilege,
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-- ** Results Stream
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Transaction.ResultsStream,
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Transaction.TransactionListT,
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-- ** Backend
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Backend.Backend,
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Backend.Mapping,
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-- ** Row parser
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RowParser.RowParser,
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)
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where
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import Hasql.Prelude hiding (read)
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import qualified Hasql.Backend as Backend
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import qualified Hasql.Transaction as Transaction
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import qualified Hasql.Pool as Pool
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import qualified Hasql.RowParser as RowParser
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import qualified Hasql.QQ as QQ
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type TransactionRunner l =
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forall b r. Backend.Backend b =>
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(forall s. Transaction.Transaction b l s r) -> Pool.Pool b -> IO r
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withoutLocking :: TransactionRunner Transaction.WithoutLocking
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withoutLocking t =
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Pool.withConnection (Transaction.runWithoutLocking t)
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read :: Backend.IsolationLevel -> TransactionRunner Transaction.Read
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read i t =
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Pool.withConnection (Transaction.runRead i t)
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write :: Backend.IsolationLevel -> TransactionRunner Transaction.Write
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write i t =
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Pool.withConnection (Transaction.runWrite i t)
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