Question

检查用户组级别执行某些任务的整洁解决方案是什么

群组：2个管理员，3个版主，4个流程订单

假设data['user']['group_id']为3

我提出了这个解决方案。

解决方案1：

$allowGroup = array(2, 3, 4);
if (in_array($this->data['user']['group_id'], $allowGroup)) {
    //Show a list of records
    if ($this->data['user']['group_id'] == 2) {
      //Show buttons to delete records (only admin can do this)
     }
}

解决方案2：

if (($this->data['user']['group_id'] == 3) || ($this->data['user']['group_id'] == 4)) {
      //Member can do this action..
}

Answer 1

稍微提高效率但不太可读的方法是将“允许”级别指定为数组键。然后它是一个简单的数组查找，而不必调用in_array（），这会做一个（更多）昂贵的循环：

$rawAllow = array(2,3,4);
$allowed = array_flip($rawAllow);

if (isset($allowed[$this->data['user']['group_id']])) {
   ... this user is allowed to perform the action...
}

Answer 2

查看：Bitwise Operators

有了这个，你可以做一些事情（请注意这是一个非常基本的例子！）：

<?php
// example actions
$actions = array(
    'create'    => 1,
    'read'      => 2,
    'update'    => 4,
    'delete'    => 8,
);

// example groups
$groups = array(
    // Admins
    2 => $actions['create'] ^ $actions['read'] ^ $actions['update'] ^ $actions['delete'],

    // Moderators
    3 => $actions['create'] ^ $actions['read'] ^ $actions['update'],

    // Process Orders
    4 => $actions['read'] ^ $actions['update'],
);

// example users
$users = array(
    // Admin
    (object)array(
        'id' => 1,
        'groupId' => 2, 
    ),

    // Moderator
    (object)array(
        'id' => 2,
        'groupId' => 3, 
    ),

    // Process Order
    (object)array(
        'id' => 3,
        'groupId' => 4,
    ),
);

foreach ($users as $user) {
    if (isset($groups[$user->groupId])) {
        printf('User: %s is allowed to: ' . "\n", $user->id);   

        if ($groups[$user->groupId] & $actions['create']) {
            echo ' create';
        }

        if ($groups[$user->groupId] & $actions['read']) {
            echo ' read';
        }

        if ($groups[$user->groupId] & $actions['update']) {
            echo ' update';
        }

        if ($groups[$user->groupId] & $actions['delete']) {
            echo ' delete';
        }

        echo "\n\n";
    }
}

检查用户组级别的简洁方法？

2 个答案: