在 WordPress 中根据 Post Object (ACF) 标题自动生成标签

Question

我正在为我们的项目页面创建自定义 post 类型。我还为我们的员工定制了 posts 类型。

在 ACF 中，我创建了一个关系字段，您可以在其中将团队成员添加到项目中，并显示在网站上。

基于关系字段中选定的团队成员 posts，我希望为关系字段中加载的每个职位（员工姓名）生成一个标签。

这是我现在卡住了。

PostObject中的名字叫做teamleden。我已尝试将代码添加到我的海关 posts 类型文件中，但它不起作用。

<?php

// save post action
add_action('acf/save_post', 'set_employee_tags_on_save_update', 20);

/**
 * @param $post_id int|string
 */
function set_employee_tags_on_save_update($post_id) {

    // get our current post object
    $post = get_post($post_id);

    // if post is object
    if(is_object($post)) {

        // check we are on the projects custom type and post statuses are either publish or draft
        // change 'projects' post type to your post type name which has the relationship field
        if($post->post_type === 'projects' && ($post->post_status === 'publish' || $post->post_status === 'draft')) {

            // get relationship field employees
            // this example uses Post Object as the Return Format and is a multiple value
            // change get field param 'employees' to your relationship field name
            $employees = get_field('employees');

            // team member tags to set empty array
            $team_member_tags_to_set = [];

            // if employees has value or values
            if($employees) {

                // get all of our current team member tags
                // change 'team_members' taxonomy value to your members taxonomy name
                $team_member_tags = get_terms([
                    'taxonomy' => 'team_members',
                    'orderby' => 'name',
                    'order' => 'ASC'
                ]);

                // empty array for existing team member tags
                $existing_team_member_tags = [];

                // if we have existing team member tags
                if(!empty($team_member_tags)) {

                    // foreach team member tags as team member tag
                    foreach($team_member_tags as $team_member_tag) {

                        // add existing team member to our existing team member tags array by tag ID => tag name
                        // this is so we can use this later to check if a team member tag already exists so we dont create duplicates
                        $existing_team_member_tags[$team_member_tag->ID] = $team_member_tag->name;

                    }

                }

                // foreach employees as employee
                foreach($employees as $employee) {

                    // get the title for current employee
                    $title = get_the_title($employee->ID);

                    // search existing team members array and return the tag id via key
                    $existing_team_member_tag_id = array_search($title, $existing_team_member_tags);

                    // if we have an existing team member tag id
                    if($existing_team_member_tag_id) {

                        // add the existing team member tag id as integer to array
                        $team_member_tags_to_set[] = (int)$existing_team_member_tag_id;

                    } else {

                        // else create a new tag for team member by adding title (name) as string to array
                        $team_member_tags_to_set[] = (string)$title;

                    }

                }

            }

            // remove the action
            remove_action('acf/save_post', 'acf_save_post');

            // set post tags for this post id, removing any unused team member tags if relationship field team members are changed
            wp_set_object_terms($post_id, $team_member_tags_to_set, $taxonomy = 'team_members', false);

            // re add the action
            add_action('acf/save_post', 'acf_save_post');

        }

    }

    // finally return
    return;

}

Answer 1

这还没有经过测试，但应该能让您走上正轨。

您需要将此添加到 function.php。

参考您需要在我的示例代码中更改的内容...

projects post_type 是 post 类型名称，此代码在保存或更新 post 时触发。
employees是projectspost类型中acf关系字段的名称。
team_members 是您应该在 projects post 类型上使用的自定义标签分类法名称。

基本上，这段代码的作用是在使用 acf/save_post 操作保存、发布或更新 projects post 时。它获取此 post 的 acf 关系字段成员数据。如果字段中有成员，它会获取所有现有的团队成员标签，并通过 ID => Title(name) 创建一个简单的现有成员标签数组。

然后遍历关系字段中的所有成员，并检查成员的标签是否已经存在，如果存在，则将现有成员标签 (int) ID 添加到 $team_member_tags_to_set 数组。如果没有找到现有的成员标签，我们只需将成员标题（名称）作为 (string) 添加到 $team_member_tags_to_set 数组。

完成所有这些后，我们只需使用 wp_set_post_tags() 传递我们的 $team_member_tags_to_set 数组来更新当前 projects post 的 team_members 分类术语。

我还在 wp_set_post_tags() 中将 append 设置为 false，这会删除所有以前的标签并创建一组新标签。如果成员在 acf 关系字段中得到更新，这将有所帮助。

https://developer.wordpress.org/reference/functions/wp_set_post_tags/

查看下面的代码，并阅读我的评论，以便了解发生了什么。

<?php

// save post action
add_action('acf/save_post', 'set_employee_tags_on_save_update', 20);

/**
 * @param $post_id int|string
 */
function set_employee_tags_on_save_update($post_id) {

    // get our current post object
    $post = get_post($post_id);

    // if post is object
    if(is_object($post)) {

        // check we are on the projects custom type and post statuses are either publish or draft
        // change 'projects' post type to your post type name which has the relationship field
        if($post->post_type === 'projects' && ($post->post_status === 'publish' || $post->post_status === 'draft')) {

            // get relationship field employees
            // this example uses Post Object as the Return Format and is a multiple value
            // change get field param 'employees' to your relationship field name
            $employees = get_field('employees');

            // team member tags to set empty array
            $team_member_tags_to_set = [];

            // if employees has value or values
            if($employees) {

                // get all of our current team member tags
                // change 'team_members' taxonomy value to your members taxonomy name
                $team_member_tags = get_terms([
                    'taxonomy' => 'team_members',
                    'orderby' => 'name',
                    'order' => 'ASC'
                ]);

                // empty array for existing team member tags
                $existing_team_member_tags = [];

                // if we have existing team member tags
                if(!empty($team_member_tags)) {

                    // foreach team member tags as team member tag
                    foreach($team_member_tags as $team_member_tag) {

                        // add existing team member to our existing team member tags array by tag ID => tag name
                        // this is so we can use this later to check if a team member tag already exists so we dont create duplicates
                        $existing_team_member_tags[$team_member_tag->ID] = $team_member_tag->name;

                    }

                }

                // foreach employees as employee
                foreach($employees as $employee) {

                    // get the title for current employee
                    $title = get_the_title($employee->ID);

                    // search existing team members array and return the tag id via key
                    $existing_team_member_tag_id = array_search($title, $existing_team_member_tags);

                    // if we have an existing team member tag id
                    if($existing_team_member_tag_id) {

                        // add the existing team member tag id as integer to array
                        $team_member_tags_to_set[] = (int)$existing_team_member_tag_id;

                    } else {

                        // else create a new tag for team member by adding title (name) as string to array
                        $team_member_tags_to_set[] = (string)$title;

                    }

                }

            }

            // remove the action
            remove_action('acf/save_post', 'acf_save_post');

            // set post tags for this post id, removing any unused team member tags if relationship field team members are changed
            wp_set_post_tags($post_id, $team_member_tags_to_set, false);

            // re add the action
            add_action('acf/save_post', 'acf_save_post');

        }

    }

    // finally return
    return;

}

在 WordPress 中根据 Post Object (ACF) 标题自动生成标签

Automatically generate tags based on Post Object (ACF) titles in WordPress

wordpress

advanced-custom-fields

custom-post-type