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persistent Database.Persist.Class.PersistStore No documentation available.
class PersistStoreRead backend =>
PersistUniqueRead backendpersistent Database.Persist.Class.PersistUnique Queries against Unique keys (other than the id Key). Please read the general Persistent documentation to learn how to create Unique keys. Using this with an Entity without a Unique key leads to undefined behavior. A few of these functions require a single Unique, so using an Entity with multiple Uniques is also undefined. In these cases persistent's goal is to throw an exception as soon as possible, but persistent is still transitioning to that. SQL backends automatically create uniqueness constraints, but for MongoDB you must manually place a unique index on a field to have a uniqueness constraint.
RepeatableRead :: IsolationLevelpersistent Database.Persist.Sql No documentation available.
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persistent Database.Persist.Sql A constraint synonym which witnesses that a backend is SQL and can run read queries.
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persistent Database.Persist.Sql An SQL backend which can only handle read queries The constructor was exposed in 2.10.0.
SqlReadBackend :: SqlBackend -> SqlReadBackendpersistent Database.Persist.Sql No documentation available.
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persistent Database.Persist.Sql Like SqlPersistT but compatible with any SQL backend which can handle read queries.
StatementAlreadyFinalized :: Text -> PersistentSqlExceptionpersistent Database.Persist.Sql No documentation available.
unSqlReadBackend :: SqlReadBackend -> SqlBackendpersistent Database.Persist.Sql No documentation available.
RepeatableRead :: IsolationLevelpersistent Database.Persist.Sql.Types.Internal No documentation available.