wordpress - 我无法调用 bp_notifications_add_notification [英] wordpress - I cannot call bp_notifications_add_notification

问题描述

我是 wordpress 开发的新手，我想开始开发一个我将在我的网站中使用的个人插件.我的网站使用 wordpress 和 buddypress.在buddypress中，他们有通知，这很好.但我希望我的插件也向 buddypress 添加通知，并且会向会员显示.

I am new in wordpress development and I want to start to develop a personal plugin which will i use in my site. my site uses wordpress and buddypress. In buddypress, they have notifications, which is pretty good. but i want my plugin to also add notifications to buddypress as well, and will appear to members.

我在这里看到了文档:bp_notifications_add_notification()

到目前为止我的代码如下.请注意，我删除了插件的某些部分只是为了简化它

so far my code is below. Please note that i have removed may parts of the plugin just to simplify it

<?php
/*
Plugin Name: Test
Description: personal plugin for my site
Version:     1.0.0
*/

function sample_add_notification( $u_id ) {

    $args = array(
        'user_id' => $u_id
    );

    bp_notifications_add_notification( $args );
}

sample_add_notification( 2 ); //this line should write a new notification for user_id: 2

?>

但是当我运行它时.它说:

but when ever I run it. it says:

致命错误:调用 C:\xampp\htdocs\htbcph\wp-content\plugins\test\test-plugin.php 中未定义的函数 bp_notifications_add_notification()在线14

Fatal error: Call to undefined function bp_notifications_add_notification() in C:\xampp\htdocs\htbcph\wp-content\plugins\test\test-plugin.php on line 14

我认为问题是，我需要先包含组件.但我会怎么做呢?请为我提供对我有帮助的好教程的链接.谢谢

i think the problem is, i need to include the component first. but how will i do it? please provide me links for good tutorials that will help me. Thanks

推荐答案

你应该用 hook/action

function sample_add_notification( $u_id ) {

    $args = array(
        'user_id' => $u_id
    );

    // Make sure the noticications has been activated
    if ( bp_is_active( 'notifications' ) ) {
        bp_notifications_add_notification( $args );
    }
}
add_action( 'bp_activity_sent_mention_email', 'sample_add_notification', 10, 1 );

add_action 所在的位置:

1. bp_activity_sent_mention_email 是一个预定义的钩子/动作，
2. sample_add_notification 您自己定义的将使用钩子调用的函数
3. 10 优先
4. 1 传递的参数个数，你只传递了 $u_id 所以它是 1

1. bp_activity_sent_mention_email is a predefined hook/action,
2. sample_add_notification your own defined function that will call with hook
3. 10 Priority
4. 1 Number of argument passed, you have passed only $u_id so it is 1

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