hasql-transaction 1.2.2.1 → 1.2.3.0

raw patch · 3 files changed

+31/−1 lines, 3 filesPVP ok

version bump matches the API change (PVP)

API changes (from Hackage documentation)

Files

• CHANGELOG.md +6/−0
• hasql-transaction.cabal +1/−1
• src/library/Hasql/Transaction/Config.hs +24/−0

@@ -1,3 +1,9 @@+# v1.2.3.0++## Non-breaking++- Add `Semigroup`/`Monoid` instances for `Mode` and `IsolationLevel`, combining via `max` with `mempty` as the weakest value, so composed transaction requirements escalate to the strictest one explicitly requested.+ # v1.2.2.1  - Conform to the new `hasql` API (v2.0)

@@ -1,6 +1,6 @@ cabal-version: 3.0 name: hasql-transaction-version: 1.2.2.1+version: 1.2.3.0 category: Hasql, Database, PostgreSQL synopsis:   Composable abstraction over retryable transactions for Hasql

@@ -12,6 +12,18 @@   deriving (Show, Eq, Ord, Enum, Bounded)  -- |+-- Combines two modes by picking the one that grants more capability.+--+-- 'mempty' is 'Read', the identity of 'max': it never overrides an+-- explicit 'Write' requirement, so a piece of a composed transaction+-- that needs to write always wins over pieces that don't care.+instance Semigroup Mode where+  (<>) = max++instance Monoid Mode where+  mempty = minBound++-- | -- For reference see -- <http://www.postgresql.org/docs/current/static/transaction-iso.html the Postgres' documentation>. data IsolationLevel@@ -19,3 +31,15 @@   | RepeatableRead   | Serializable   deriving (Show, Eq, Ord, Enum, Bounded)++-- |+-- Combines two isolation levels by picking the stricter one.+--+-- 'mempty' is 'ReadCommitted', the identity of 'max': it never overrides+-- an explicit stricter requirement, so a piece of a composed transaction+-- that needs e.g. 'Serializable' always wins over pieces that don't care.+instance Semigroup IsolationLevel where+  (<>) = max++instance Monoid IsolationLevel where+  mempty = minBound