-- +--------------------------------------------------------------------+
-- | Copyright CiviCRM LLC. All rights reserved.                        |
-- |                                                                    |
-- | This work is published under the GNU AGPLv3 license with some      |
-- | permitted exceptions and without any warranty. For full license    |
-- | and copyright information, see https://civicrm.org/licensing       |
-- +--------------------------------------------------------------------+

DELIMITER |

CREATE TRIGGER   civicrm_contact_ad
BEFORE DELETE ON civicrm_contact
FOR EACH ROW
BEGIN
  -- we delete the corresponding entity_id/entity_table entries
  -- from all the linked tables (note, log etc)
  DELETE FROM civicrm_note
        WHERE entity_id    = OLD.id
          AND entity_table = 'civicrm_contact';
  DELETE FROM civicrm_log
        WHERE entity_id    = OLD.id
          AND entity_table = 'civicrm_contact';
  DELETE FROM civicrm_task_status
        WHERE responsible_entity_id    = OLD.id
          AND responsible_entity_table = 'civicrm_contact';

END;

CREATE TRIGGER   civicrm_contribution_ad
BEFORE DELETE ON civicrm_contribution
FOR EACH ROW
BEGIN
  -- we delete the corresponding entity_id/entity_table entries
  -- from all the linked tables (note, log etc)
  DELETE FROM civicrm_note WHERE entity_id = OLD.id AND entity_table = 'civicrm_contribution';
END;

CREATE TRIGGER   civicrm_participant_ad
BEFORE DELETE ON civicrm_participant
FOR EACH ROW
BEGIN
  -- we delete the corresponding entity_id/entity_table entries
  -- from all the linked tables (note, log etc)
  DELETE FROM civicrm_note WHERE entity_id = OLD.id AND entity_table = 'civicrm_participant';
  DELETE FROM civicrm_log  WHERE entity_id = OLD.id AND entity_table = 'civicrm_participant';
END;

|

DELIMITER ;