系统所在业务空间 ## 前置条件 1. 系统下有设备 2. 系统下的设备有所在业务空间关系 ## 依赖函数 Eq2Sp ## 计算流程 1. 根据 系统 --> 设备 --> 业务空间 的间接关系, 获取系统和业务空间的关系 2. 计算结果存储在r_sy_in_sp_*中 ## 函数 ``` -- 系统所在楼层 create or replace function public.rel_sy2sp(project_id character varying) returns boolean as $$ try: input_tables = ['r_eq_in_sp_zone_air_conditioning', 'r_eq_in_sp_zone_clean', 'r_eq_in_sp_zone_domestic_water_supply', 'r_eq_in_sp_zone_fire', 'r_eq_in_sp_zone_function', 'r_eq_in_sp_zone_general', 'r_eq_in_sp_zone_heating', 'r_eq_in_sp_zone_lighting', 'r_eq_in_sp_zone_network', 'r_eq_in_sp_zone_power_supply', 'r_eq_in_sp_zone_security', 'r_eq_in_sp_zone_tenant'] output_tables = ['r_sy_in_sp_zone_air_conditioning', 'r_sy_in_sp_zone_clean', 'r_sy_in_sp_zone_domestic_water_supply', 'r_sy_in_sp_zone_fire', 'r_sy_in_sp_zone_function', 'r_sy_in_sp_zone_general', 'r_sy_in_sp_zone_heating', 'r_sy_in_sp_zone_lighting', 'r_sy_in_sp_zone_network', 'r_sy_in_sp_zone_power_supply', 'r_sy_in_sp_zone_security', 'r_sy_in_sp_zone_tenant'] # 将下面对数据库的操作作为一个事务, 出异常则自动rollback with plpy.subtransaction(): for i in range(len(output_tables)): delete_plan = plpy.prepare("delete from {0} where project_id = $1 and sign = 2".format(output_tables[i]), ["text"]) delete_plan.execute([project_id]) join_plan = plpy.prepare("select sy.sys_id, rel.space_id from r_sy_eq sy inner join {0} rel on sy.equip_id = rel.equip_id where rel.project_id = $1 and sy.project_id = $1".format(input_tables[i]), ["text"]) rel = join_plan.execute([project_id]) sy2sp = dict() for row in rel: sys = row['sys_id'] space = row['space_id'] if sys not in sy2sp: sy2sp[sys] = set() space_set = sy2sp[sys] space_set.add(space) for sid, space_set in sy2sp.items(): for space in space_set: plan = plpy.prepare("insert into {0}(sys_id, space_id, project_id, sign) values($1, $2, $3, 2)".format(output_tables[i]), ["text", "text", "text"]) plan.execute([sid, space, project_id]) except Exception as e: plpy.warning(e) return False else: return True $$ LANGUAGE 'plpython3u' VOLATILE; ``` ## 输入 1. 项目id ## 例子 select public.rel_sy2sp('Pj1101010015');