z_db_worker behaviour (zotonic_core v1.0.0-rc.17)

Database pool worker behaviour definition

Summary

Callbacks

equery/4
squery/3
test_connection/1

Callbacks

equery/4

-callback equery(Worker, Sql, Parameters, Timeout) -> epgsql:reply(epgsql:equery_row())
                    when
                        Worker :: pid(),
                        Sql :: string(),
                        Parameters :: [epgsql:bind_param()],
                        Timeout :: non_neg_integer().

squery/3

-callback squery(Worker, Sql, Timeout) -> epgsql:reply(epgsql:squery_row())
                    when Worker :: pid(), Sql :: string(), Timeout :: non_neg_integer().

test_connection/1

-callback test_connection(WorkerArgs) -> ok | {error, Reason}
                             when WorkerArgs :: proplists:proplist(), Reason :: term().