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-- +migrate Up
UPDATE escalation_policy_step SET step_number = step_number - 1;
-- +migrate StatementBegin
CREATE OR REPLACE FUNCTION escalate_alerts() RETURNS void
LANGUAGE plpgsql
AS $$
BEGIN
UPDATE alerts a
SET escalation_level = escalation_level + 1, last_escalation = now()
FROM service s, escalation_policy_step step, alert_escalation_levels lvl, escalation_policy e
WHERE (last_escalation + (step.delay::TEXT||' minutes')::interval) < now()
AND a.status = 'triggered'::enum_alert_status
AND s.id = a.service_id
AND step.escalation_policy_id = s.escalation_policy_id
AND lvl.alert_id = a.id
AND step.step_number = (a.escalation_level % lvl.levels)
AND e.id = s.escalation_policy_id
AND (e.repeat = -1 OR escalation_level / lvl.levels < e.repeat);
END;
$$;
-- +migrate StatementEnd
-- +migrate StatementBegin
CREATE OR REPLACE FUNCTION set_escalation_policy_step() RETURNS trigger
LANGUAGE plpgsql
AS $$
BEGIN
SELECT count(step_number) INTO NEW.step_number FROM escalation_policy_step WHERE escalation_policy_id = NEW.escalation_policy_id;
RETURN NEW;
END;
$$;
-- +migrate StatementEnd
CREATE OR REPLACE VIEW alert_escalation_levels AS
SELECT alerts.id AS alert_id,
count(step.id) AS levels,
(alerts.escalation_level % count(step.id)) as relative_level
FROM alerts,escalation_policy_step step,service
WHERE step.escalation_policy_id = service.escalation_policy_id
AND service.id = alerts.service_id
GROUP BY alerts.id;
SELECT update_notifications();
-- +migrate Down
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