Database.PostgreSQL.Entity.DBT

Create a Pool Connection with the appropriate parameters

Run a DBT action with no explicit error handling.

This functions is suited for using MonadError error handling.

Example

let e1 = E 1 True True
result <- runExceptT @EntityError $ do
  withPool pool $ insertEntity e1
  withPool pool $ markForProcessing 1
case result of
  Left err -> print err
  Right _  -> putStrLn "Everything went well"

See the code in the example/ directory on GitHub

Query wrapper for SQL statements which do not return.

Query wrapper for SQL statements that operate on multiple rows which do not return.

Query wrapper that returns a Vector of results

Query wrapper that returns a Vector of results and does not take an argument

Query wrapper that returns one result.

Query wrapper that returns one result and does not take an argument