>本教程演示了擴展WordPress的快速編輯功能，以包括自定義元元字段。 讓我們簡化流程並提高清晰度。
>
密鑰改進：此插件添加了“特色帖子”，“等級”和“副標題”字段到快速編輯接口，提高了後管理效率。
>插件開發：創建插件是擴展核心WordPress功能的最佳實踐。這避免了修改核心文件，確保更新的更新。
<?php
/**
* Plugin Name: Extend Quick Edit
* Plugin URI: https://elevate360.com.au/plugins/extend-quick-edit
* Description: Extends the quick-edit interface to manage custom post meta.
* Version: 1.0.0
* Author: Simon Codrington
* Author URI: http://simoncodrington.com.au
* Text Domain: extend-quick-edit
* Domain Path: /languages
*/
class EL_Extend_Quick_Edit {
private static $instance = null;
private function __construct() {
add_action( 'manage_posts_columns', array( $this, 'add_custom_columns' ) );
add_action( 'manage_posts_custom_column', array( $this, 'manage_custom_columns' ), 10, 2 );
add_action( 'quick_edit_custom_box', array( $this, 'display_quick_edit_fields' ), 10, 2 );
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_scripts' ) );
add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ), 10, 2 );
add_action( 'save_post', array( $this, 'save_post_meta' ), 10, 2 );
}
public function add_meta_box( $post_type, $post ) {
if ( $post_type === 'post' ) {
add_meta_box(
'extend-quick-edit-meta',
__( 'Additional Post Information', 'extend-quick-edit' ),
array( $this, 'render_meta_box' ),
'post',
'side',
'default'
);
}
}
public function render_meta_box( $post ) {
wp_nonce_field( 'extend_quick_edit_meta', 'extend_quick_edit_nonce' );
$featured = get_post_meta( $post->ID, 'post_featured', true );
$rating = get_post_meta( $post->ID, 'post_rating', true );
$subtitle = get_post_meta( $post->ID, 'post_subtitle', true );
?>
<label for="post_featured">
<input type="checkbox" name="post_featured" id="post_featured" <?php checked( $featured, 'yes' ); ?> value="yes"> Featured Post
</label><br>
<label for="post_rating">Rating:</label>
<select name="post_rating" id="post_rating">
<?php for ( $i = 1; $i <= 5; $i++ ) { ?>
<option value="<?php echo $i; ?>" <?php selected( $rating, $i ); ?>><?php echo $i; ?></option>
<?php } ?>
</select><br>
<label for="post_subtitle">Subtitle:</label>
<input type="text" name="post_subtitle" id="post_subtitle" value="<?php echo esc_attr( $subtitle ); ?>">
<?php
}
public function add_custom_columns( $columns ) {
$new_columns = array(
'post_featured' => __( 'Featured?', 'extend-quick-edit' ),
'post_rating' => __( 'Rating', 'extend-quick-edit' ),
'post_subtitle' => __( 'Subtitle', 'extend-quick-edit' ),
);
return array_merge( $columns, $new_columns );
}
public function manage_custom_columns( $column_name, $post_id ) {
$value = get_post_meta( $post_id, $column_name, true );
echo '<div id="' . esc_attr( $column_name ) . '_' . $post_id . '">' . esc_html( $value ) . '</div>';
}
public function display_quick_edit_fields( $column_name, $post_type ) {
if ( $post_type === 'post' ) {
wp_nonce_field( 'extend_quick_edit_meta', 'extend_quick_edit_nonce' );
?>
<fieldset>
<?php if ( $column_name === 'post_featured' ): ?>
<div>
<label for="post_featured_yes">
<input type="radio" name="post_featured" id="post_featured_yes" value="yes"> Yes
</label>
<label for="post_featured_no">
<input type="radio" name="post_featured" id="post_featured_no" value="no"> No
</label>
</div>
<?php elseif ( $column_name === 'post_rating' ): ?>
<div>
<select name="post_rating" id="post_rating">
<?php for ( $i = 1; $i <= 5; $i++ ) { ?>
<option value="<?php echo $i; ?>"><?php echo $i; ?></option>
<?php } ?>
</select>
</div>
<?php elseif ( $column_name === 'post_subtitle' ): ?>
<div>
<input type="text" name="post_subtitle" id="post_subtitle">
</div>
<?php endif; ?>
</fieldset>
<?php
}
}
public function enqueue_admin_scripts() {
wp_enqueue_script( 'extend-quick-edit-js', plugin_dir_url( __FILE__ ) . 'extend-quick-edit.js', array( 'jquery', 'inline-edit-post' ), '1.0.0', true );
}
public function save_post_meta( $post_id, $post ) {
if ( ! isset( $_POST['extend_quick_edit_nonce'] ) || ! wp_verify_nonce( $_POST['extend_quick_edit_nonce'], 'extend_quick_edit_meta' ) ) {
return;
}
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return;
}
$fields = array( 'post_featured', 'post_rating', 'post_subtitle' );
foreach ( $fields as $field ) {
if ( isset( $_POST[ $field ] ) ) {
$value = sanitize_text_field( $_POST[ $field ] );
update_post_meta( $post_id, $field, $value );
}
}
}
public static function get_instance() {
if ( is_null( self::$instance ) ) {
self::$instance = new self();
}
return self::$instance;
}
}
EL_Extend_Quick_Edit::get_instance();
?>（Extend-Quick-edit.js）：
jQuery(document).ready(function($) {
var $inlineEdit = inlineEditPost.edit;
inlineEditPost.edit = function(id) {
$inlineEdit.apply(this, arguments);
var $row = $(this.row);
var post_id = parseInt($row.attr('id').replace(/[^0-9]/g, ''));
var fields = ['post_featured', 'post_rating', 'post_subtitle'];
$.each(fields, function(index, field) {
var value = $('#' + field + '_' + post_id).text();
if (field === 'post_featured') {
$row.find('input[name="' + field + '"][value="' + value + '"]').prop('checked', true);
} else {
$row.find('#' + field).val(value);
}
});
}
});放置在與插件的PHP文件相同的目錄中。 這種改進的代碼更加簡潔，高效且易於維護。 簡化了JavaScript，可以使用jQuery直接填充快速編輯字段。 錯誤處理和安全性也得到了增強。 這種修訂的方法提供了一種更強大和用戶友好的解決方案。 激活插件後，您將在快速編輯接口中看到新的自定義字段。請記住在安裝插件後清除瀏覽器緩存。 extend-quick-edit.js>
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