db-schema/db_scripts/diff/15316.up

USE billing;

ALTER TABLE contacts ADD timezone VARCHAR(80) DEFAULT NULL;

CREATE OR REPLACE VIEW v_subscriber_timezone AS
  SELECT sc.id as contact_id, s.id as subscriber_id, s.uuid,
         COALESCE(sc.timezone, cc.timezone, rc.timezone) as name
 FROM voip_subscribers s
LEFT OUTER JOIN contacts sc ON sc.id = s.contact_id
JOIN contracts c ON c.id = s.contract_id
JOIN contacts cc ON cc.id = c.contact_id
JOIN resellers r ON r.id = cc.reseller_id
JOIN contracts i ON i.id = r.contract_id
JOIN contacts rc ON rc.id = i.contact_id;

CREATE OR REPLACE VIEW v_contract_timezone AS
  SELECT cc.id as contact_id, c.id as contract_id,
         COALESCE(cc.timezone, rc.timezone) as name
 FROM contracts c
JOIN contacts cc ON cc.id = c.contact_id
JOIN resellers r ON r.id = cc.reseller_id
JOIN contracts i ON i.id = r.contract_id
JOIN contacts rc ON rc.id = i.contact_id;

CREATE OR REPLACE VIEW v_reseller_timezone AS
  SELECT rc.id as contact_id, r.id as reseller_id,
         rc.timezone as name
FROM resellers r
JOIN contracts i ON i.id = r.contract_id
JOIN contacts rc ON rc.id = i.contact_id;