How to develop a WordPress plug-in that automatically generates task lists

WordPress is a very popular content management system with a wide range of functions and a flexible plug-in system that can Meet various needs. Sometimes, we may need a task list to manage our workflow. At this time, a WordPress plug-in that automatically generates task lists is very useful. This article describes how to develop such a plug-in and provides code examples.

First, we need to create a new plugin. You can create a new folder in the WordPress plugin directory and name it task-list. Then, create a task-list.php file in the folder and enter the following code in the file:

<?php
/*
Plugin Name: Task List
Version: 1.0
Description: 自動生成任務(wù)列表的插件
Author: Your Name
Author URI: https://your-website.com
License: GPL2
*/

// 注冊一個(gè)新的短代碼
function task_list_shortcode($atts) {
    // 獲取默認(rèn)參數(shù)
    $atts = shortcode_atts(array(
        'category' => '',
    ), $atts);
    
    // 獲取任務(wù)列表
    $tasks = get_tasks($atts['category']);

    // 創(chuàng)建任務(wù)列表的HTML
    $output = '<ul>';
    foreach ($tasks as $task) {
        $output .= '<li>' . $task['name'] . '</li>';
    }
    $output .= '</ul>';

    return $output;
}
add_shortcode('task_list', 'task_list_shortcode');

// 獲取任務(wù)列表的函數(shù)
function get_tasks($category) {
    // 通過分類獲取任務(wù)列表
    $args = array(
        'post_type' => 'task',
        'tax_query' => array(
            array(
                'taxonomy' => 'task_category',
                'field' => 'slug',
                'terms' => $category,
            ),
        ),
    );
    $query = new WP_Query($args);

    // 存儲任務(wù)列表
    $tasks = array();
    if ($query->have_posts()) {
        while ($query->have_posts()) {
            $query->the_post();
            $tasks[] = array(
                'name' => get_the_title(),
                'category' => $category,
            );
        }
    }

    wp_reset_postdata();

    return $tasks;
}

The above code creates a file named Task List plug-in. The plugin registers a new shortcode [task_list]. When the user uses the shortcode in an article or page, the task_list_shortcode function will be called to generate the HTML of the task list. The task_list_shortcode function gets the task list by calling the get_tasks function, and uses foreach to loop through each task and add it to an HTML list. Finally, the HTML of the task list is returned.

To achieve automatic generation of task lists, we need to create a custom task(task) article type and create a taxonomy task_category(task Category), you can create a new folder named includes in the plugin folder, create the tasks.php file in the folder, and enter the following code:

<?php
// 創(chuàng)建自定義的任務(wù)類型
function create_task_type() {
    register_post_type('task', array(
        'labels' => array(
            'name' => '任務(wù)',
            'singular_name' => '任務(wù)',
        ),
        'public' => true,
        'has_archive' => true,
        'supports' => array('title'),
        'rewrite' => array('slug' => 'tasks'),
    ));
}
add_action('init', 'create_task_type');

// 創(chuàng)建自定義的任務(wù)分類
function create_task_category() {
    register_taxonomy('task_category', 'task', array(
        'labels' => array(
            'name' => '任務(wù)分類',
            'singular_name' => '任務(wù)分類',
        ),
        'hierarchical' => true,
        'rewrite' => array('slug' => 'task-category'),
    ));
}
add_action('init', 'create_task_category');

The above code creates a custom task (task) article type and creates a taxonomy task_category (task classification) for it. We use the register_post_type function to create the task type and define some basic attributes, such as name, supported functions, etc. We then created a task_category (task classification) using the register_taxonomy function, which has a hierarchical structure and defines its name and rewrite rules.

After completing the above code, we need to load the includes/tasks.php file in the plug-in’s main file task-list.php. Find the following code in the task-list.php file:

/*
Plugin Name: Task List
...
*/

// 注冊一個(gè)新的短代碼
...
add_shortcode('task_list', 'task_list_shortcode');

// 加載任務(wù)文件
require_once(plugin_dir_path(__FILE__) . 'includes/tasks.php');

In the above code, a require_once function is added for loading includes /tasks.php file.

After completing the above steps, we can enable the Task List plug-in in WordPress and use the [task_list] shortcode in the article or page to automatically generate The task list is up. If you need to display the task list according to task categories, you can use the category parameter, such as [task_list category="important"].

Through the steps in this article, we have successfully developed a WordPress plug-in that automatically generates task lists. This plug-in can easily help us manage our workflow and improve work efficiency. I hope this article is helpful to you in developing WordPress plugins. Happy development!

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