如何为特定控制器加载挂钩

Question

我是 codeigniter 的新手。我想为管理面板控制器加载挂钩。

$hook['post_controller_constructor'][] = array(
    'class'    => 'AdminData',
    'function' => 'myfunction',
    'filename' => 'loginhelp.php',
    'filepath' => 'hooks',
    'params'   => array()
);

Answer 1

请看清楚文档https://ellislab.com/codeigniter/user-guide/general/hooks.html

The hooks feature can be globally enabled/disabled by setting the following item in the application/config/config.php file:

$config['enable_hooks'] = TRUE;

Hooks are defined in application/config/hooks.php file.

您无法加载特定的 controller.You 需要在挂钩函数中检查控制器名称并编写代码。假设你的 post_controller_constructor hooks 函数名称是 myfunction 你可以在函数

中检查它

 $CI =& get_instance();
 if($CI ->router->class=="AdminData"){//write your code}

Answer 2

post_controller_constructor 挂钩在 $class 加载后被调用。加载的 class 是基于路由参数的。

system/core/Codeigniter.php

/**
 *<code>
 *  http://example.com/adminData/method
 *</code>
 *
 * $CI = new adminData(); => application/controllers/adminData.php
**/
$CI = new $class();

$EXT->call_hook('post_controller_constructor');

所以如果你想在 adminData 控制器上调用一个方法，你可以这样做。

这种方法并不理想，因为它不太像 OOP，但是 CI 是从设计角度构建的方式，您必须像下面的示例那样做一些变通方法

application/controllers/adminData.php

class AdminData extends CI_Controller
{
    public function __construct(){}

    // This cannot be called directly in the browser
    public function _filter()
    {
        /**
         * Put your logic in here
         *<code>
         * $this->model->logic()
         *</code>
        **/
        exit('I have just be called!');
    }
}

application/hooks/loginhelp.php

class AdminData
{
    protected $ci;

    public function __construct()
    {
        global $CI;
        $this->ci = $CI;
    }

    public function myfunction()
    {
        // If the class is not == AdminData, just bail
        if(get_class($this->ci) != 'AdminData') return;

        if(!is_callable(array($this->ci, '_filter'))) return;

        //calls $AdminData->_filter()
        return call_user_func(array($this->ci, '_filter'));
    }
}

Answer 3

好的，这是最简单的方法：

declare a public variable in your Controller

public $is_hookable = TRUE;

Then inside your hook function do this:

$ci=&get_instance();

if($ci->is_hookable){
  ... enter whatever you want here;
}

希望这对您有所帮助

Answer 4

    Application/config/hooks.php

    $hook['post_controller'] = array(
            'class'    => 'LogoutBlockedUser',
            'function' => 'logout',
            'filename' => 'LogoutBlockedUser.php',
            'filepath' => 'hooks',
            'params'   => ""
    );

    Enable hooks in config.php
    $config['enable_hooks'] = TRUE;

    Application/hooks/LogoutBlockedUser.php

    class LogoutBlockedUser {


    public function __construct()
    {

    }

    public function logout()
    {
        $CI =& get_instance();
        if(!(empty($CI->session->userdata('user_id'))))
        {
            $CI->load->model('Your_model', 'web');
            $result = $CI->common->select_query;
            if(!empty($result))
            {
                $CI->session->unset_userdata('user_id');
                session_destroy();
                redirect(base_url() . 'yourcontroller/function');
            }
        }

    }

}

如何为特定控制器加载挂钩

How to load hook for particular controller

codeigniter

codeigniter-2

codeigniter-routing