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系统所在业务空间完成

jxing 5 年之前
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      datacenter/docs/relation_calc/Sy2Sp.md

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datacenter/docs/relation_calc/Sy2Sp.md

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+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
+    
+## 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');