在数据库中有3个表 - 部门,员工,帐户。一个部门有很多员工。员工包含列department_id bigint
帐户表包含列login varchar
,employee_id bigint
,用于将Postgres用户(角色)绑定到Employee中的行。
我的目标是让用户只查看和使用那些department_id
的值与用户相同的Employee行。
必须有:
CREATE POLICY locale_policy ON employee
TO justuser, operator
USING (department_id =
(SELECT department_id FROM employee WHERE id =
(SELECT employee_id FROM account WHERE login = CURRENT_USER)
)
)
但是由于员工的子查询,它正在筹集infinite recursion detected in policy for relation employee
。
编辑:关系定义如下:
create table department(
id serial primary key);
create table employee(
id serial primary key,
department_id int8 not null references department(id));
create table account(
id serial primary key,
login varchar(100) not null unique,
employee_id int8 not null unique references employee(id));
答案 0 :(得分:1)
嗯,我不知道它有多么体面,但它对我有用。我找到了创建视图的解决方案,其中是current_user的部门的id,然后检查它是否匹配:
CREATE VIEW curr_department AS
(SELECT department_id as id FROM employee WHERE id =
(SELECT employee_id FROM account WHERE login = current_user)
);
CREATE POLICY locale_policy ON employee
TO justuser, operator
USING (department_id =
(SELECT id FROM curr_department)
);
答案 1 :(得分:0)
唉,雷克斯特不允许创建角色.. http://rextester.com/QDYC6798
create table department(
id serial primary key);
create table employee(
id serial primary key,
department_id int8 not null references department(id));
create table account(
id serial primary key,
login varchar(100) not null unique,
employee_id int8 not null unique references employee(id));
insert into department default values;
insert into department default values;
insert into employee (department_id ) select 1;
insert into employee (department_id ) select 2;
insert into account (login,employee_id) select 'justuser',1;
insert into account (login,employee_id) select 'operator',2;
create role justuser;
create role operator;
set role justuser;
select * from employee;
无法重现。这不是答案 - 只是一个格式化的脚本。解析后我会删除它