RULE author_for_change_plan

(* SCHEMA ship_structures_schema; *)

  RULE author_for_change_plan FOR (
             applied_person_and_organization_assignment, 
             person_and_organization_role, action_request_solution);

    LOCAL
      violate : LOGICAL := FALSE;
      t1_set  : SET OF action_request_solution := [];
      a_set   : SET OF applied_person_and_organization_assignment := [];
    END_LOCAL;
    t1_set := QUERY ( a <* action_request_solution | VALUE_IN(which_class(
        a),'change plan') );
    REPEAT i := 1 TO HIINDEX(t1_set) BY 1 WHILE NOT violate;
      a_set := QUERY ( b <* applied_person_and_organization_assignment | (
          VALUE_IN(b.items,t1_set[i]) AND (b.role.name = 'author')) );
      violate := SIZEOF(a_set) <> 1;
    END_REPEAT;

  WHERE
    wr1: (NOT violate);

  END_RULE; -- author_for_change_plan

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2012-03-27T17:17:01-04:00