如何使用 Auth 模块从 Kohana 3 检索所有用户和所有角色?

How to retrieve all users and all roles from Kohana 3 using Auth module?

我可以收到具有所有角色的所有用户的列表吗?我需要知道数据库中每个用户的 all 角色。我在带有 ORM 的 Kohana 3.3 中使用 Auth 模块。

是的,你可以。但是我不明白你为什么要做这样次优的事情。

1.完整 ORM:

$users = ORM::factory('Auth_User')->find_all();
foreach($users as $user) {
    $roles = $user->roles->find_all();
    foreach($roles as $role)
        $role->name;
}

2。通用 SQL(提示):

SELECT * FROM users 
INNER JOIN user_roles USING(user_id) 
INNER JOIN roles USING(role_id) 
ORDER BY users.name

结果:

  • user_1 role_1
  • user_1 role_2
  • user_2 role_x

3。易于显示SQL(但您在每次添加新角色时都更改代码)

SELECT users.*, IF(r1.user_id IS NULL, 0, 1) AS role1, IF(r2.user_id IS NULL, 0, 1) AS role2, IF(rn.user_id IS NULL, 0, 1) AS rolen FROM users LEFT JOIN (SELECT user_id FROM user_roles where role_id = 1) AS r1 USING(user_id) LEFT JOIN (SELECT user_id FROM user_roles where role_id = 2) AS r2 USING(user_id) LEFT JOIN (SELECT user_id FROM user_roles where role_id = n) AS rn USING(user_id)

结果: username | role1 | role2 | rolen user1 | 1 | 0 | 0 user2 | 0 | 1 | 1