建筑下的业务空间 ## 前置条件 有所属楼层的业务空间(所有业务空间表都需要处理) ``` FROM zone_* WHERE project_id='Pj4201050001' AND floor_id is not null ``` ## 处理方式 从绑定的楼层里取建筑ID, 将建筑ID填入设备ID(建筑ID为空,则设备的建筑ID也为空)。 ## 实现方式 SQL ``` update zone_air_conditioning zone set zone.building_id = floor.building_id from floor where zone.floor_id = floor.id and zone.project_id = 'Pj4201050001' and zone.floor_id is not null ``` # 函数 ``` create or replace function public.rel_bd2sp(tables text, project_id character varying) returns boolean as $$ try: list = tables.split(',') # 将下面对数据库的操作作为一个事务, 出异常则自动rollback with plpy.subtransaction(): for table in list: str = "UPDATE {0} as zone SET building_id = floor.building_id from public.floor as floor where floor_id = floor.id and zone.project_id = $1 and floor_id is not null".format(table.strip()) plan = plpy.prepare(str, ["text"]) data = plan.execute([project_id]) except Exception as e: plpy.warning(e) return False else: return True $$ LANGUAGE 'plpython3u' VOLATILE; ``` ## 输入 1. 参与计算的表的全名称, 带schema名, 以英文逗号隔开 2. 项目id ## 返回结果 true 成功 false 失败