我创建了一个自定义帖子类型,其中包含元数据日期和日期。
使用add_events_metaboxes
function event_list_init(){
$labels = array(
'name' => _x( 'Events', 'post type general name' ),
'singular_name' => _x( 'Event', 'post type singular name' ),
'menu_name' => _x( 'Events List', 'admin menu' ),
'name_admin_bar' => _x( 'Events List', 'add new on admin bar' ),
'add_new_item' => __( 'Add New Event' ),
'new_item' => __( 'New Event' ),
'edit_item' => __( 'Edit Event' ),
'view_item' => __( 'View Event' ),
'all_items' => __( 'All Events' ),
'search_items' => __( 'Search Events' ),
'not_found' => __( 'No Events found.' ),
'not_found_in_trash' => __( 'No Events found in Trash.' )
);
$args = array(
'labels' => $labels,
'description' => __( 'Create Events' ),
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'show_in_menu' => true,
'query_var' => true,
'rewrite' => array( 'slug' => 'event' ),
'capability_type' => 'post',
'has_archive' => true,
'hierarchical' => true,
'menu_position' => 6,
'register_meta_box_cb' => 'add_events_metaboxes',
'menu_icon' => 'dashicons-calendar-alt',
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' )
);
register_post_type('events',$args);
}
add_action('init','event_list_init');
这里是回调函数,它实例化一个类来创建元数据并通过动作钩save_post
保存帖子数据
function add_events_metaboxes(){
new eventsListMetaBox();
}
class eventsListMetaBox{
/*
* Constructor that creates the meta box
*/
public function __construct(){
/**
* Render and Add form meta box
*/
add_meta_box('wpt_events_date', 'Events Date', array($this, 'fisa_events_date'), 'events', 'side', 'high');
/**
* Save Date from and to as meta key
*/
add_action('save_post',array($this, 'fisa_events_date_save'),1,2);
}
/**
* Render Form for Events date
*/
function fisa_events_date() {
global $post;
// Add an nonce field so we can check for it later.
wp_nonce_field( 'events_date_fromto', 'events_datefromto_nonce' );
// Echo out the field
echo '<label for="_fisa_date_from">Date From</label>';
echo '<input id="fisa-event-datefrom" type="text" name="_fisa_date_from" class="widefat" />';
echo '<br/><br/>';
echo '<label for="_fisa_date_to">Date To</label>';
echo '<input id="fisa-event-dateto" type="text" name="_fisa_date_to" class="widefat" />';
}
/**
* Meta key actual database insertion
*/
function fisa_events_date_save($post_id){
/**
* Check if nonce is not set
*/
// if (!isset($_POST['events_datefromto_nonce']))
// return $post_id;
//
// $nonce = $_POST['events_datefromto_nonce'];
// /**
// * Verify that the request came from our screen with the proper authorization
// */
// if(!wp_verify_nonce($nonce,'events_date_fromto'))
// return $post_id;
//
// //Check the user's permission
//
// if(!current_user_can('edit_post',$post_id) )
// return $post_id;
//Prepare and sanitize the data before saving it
$events_date = array(
sanitize_text_field( $_POST['_fisa_date_from']),
sanitize_text_field($_POST['_fisa_date_to'])
);
update_post_meta($post_id, '_fisa_events_date', $events_date);
}
}
我的问题是我无法在wordpress的_fisa_events_date
表中看到postmeta
元键。任何人都可以指出我错过了什么或者我该怎么办才能保存它?
答案 0 :(得分:5)
您依靠register_meta_box_cb
显示元框并将保存逻辑挂钩到save_post
。问题是Wordpress只在需要显示元框时运行register_meta_box_cb
(它挂钩到add_meta_boxes
) - 即当访问编辑或添加帖子页面时。但是当Wordpress保存帖子时,它不需要显示元组,因此register_meta_box_cb
,add_events_metaboxes
和你的save_post
挂钩永远不会被调用。
最简单的解决方案是删除您的register_meta_box_cb
参数,并将add_events_metaboxes
函数挂钩到admin_init
事件。
add_action('admin_init', 'add_events_metaboxes');
您可以在add_action('init', 'event_list_init')
挂钩下执行此操作。
找到要点here。
答案 1 :(得分:2)
根据Wordpress documentation,register_meta_box_cb
:
设置编辑表单的元框时将调用。
too late与save_post
挂钩。
所以我建议您分别在 functions.php 文件的某处隐藏save_post
:
注册帖子类型
$args = array(
....
'register_meta_box_cb' => 'add_events_metaboxes',
....
);
register_post_type( 'events', $args );
渲染元数据
function add_events_metaboxes(){
new eventsListMetaBox();
}
class eventsListMetaBox{
public function __construct(){
add_meta_box('wpt_events_date', 'Events Date', array($this, 'fisa_events_date'), 'events', 'side', 'high');
}
function fisa_events_date() {
...
}
}
保存元数据
add_action( 'save_post', 'fisa_events_date_save' );
function fisa_events_date_save(){
global $post;
$post_id = $post->ID;
// Use wp_verify_nonce and other checks to verify everything is right
$events_date = array(
sanitize_text_field( $_POST['_fisa_date_from']),
sanitize_text_field($_POST['_fisa_date_to'])
);
update_post_meta($post_id, '_fisa_events_date', $events_date);
}
请记住,Wordpress并非旨在完全以面向对象的方式运行,因此使用带有OOP概念的hooking system可能会出现问题。
答案 2 :(得分:1)
正如其他答案所揭示的那样,问题是register_meta_box_cb
回调只会涉及以下内容:
在回调中进行
remove_meta_box()
和add_meta_box()
次呼叫。
save_post
未包含在回调中,必须是独立的。这个动作钩子发生了:
每当创建或更新帖子或页面时,可以从导入,发布/页面编辑表单,xmlrpc或通过电子邮件发送
当您使用Class来包装元框创建时,我建议将所有内容包装在其中
PS:检查评论并在save_post
回调中添加必要的检查。
<?php
class MyEvents {
public function __construct(){
add_action( 'init', array( $this, 'init' ) );
add_action( 'save_post', array( $this, 'save_post' ), 10, 2 ); // no need to change priority to 1
}
public function init(){
$labels = array(
'name' => _x( 'Events', 'post type general name' ),
'singular_name' => _x( 'Event', 'post type singular name' ),
'menu_name' => _x( 'Events List', 'admin menu' ),
'name_admin_bar' => _x( 'Events List', 'add new on admin bar' ),
'add_new_item' => __( 'Add New Event' ),
'new_item' => __( 'New Event' ),
'edit_item' => __( 'Edit Event' ),
'view_item' => __( 'View Event' ),
'all_items' => __( 'All Events' ),
'search_items' => __( 'Search Events' ),
'not_found' => __( 'No Events found.' ),
'not_found_in_trash' => __( 'No Events found in Trash.' )
);
$args = array(
'labels' => $labels,
'description' => __( 'Create Events' ),
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'show_in_menu' => true,
'query_var' => true,
'rewrite' => array( 'slug' => 'event' ),
'capability_type' => 'post',
'has_archive' => true,
'hierarchical' => true,
'menu_position' => 6,
'register_meta_box_cb' => array( $this, 'add_metaboxes' ),
'menu_icon' => 'dashicons-calendar-alt',
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' )
);
register_post_type('events',$args);
}
public function add_metaboxes() {
add_meta_box( 'wpt_events_date', 'Events Date', array( $this, 'the_metabox' ), 'events', 'side', 'high' );
}
public function the_metabox( $post ) { // No need for "global $post", it's passed as parameter
wp_nonce_field( 'events_date_fromto', 'events_datefromto_nonce' );
$dates = get_post_meta( $post->ID, '_fisa_events_date', true);
$from = $dates ? $dates[0] : false;
$to = $dates ? $dates[1] : false;
echo '<label for="_fisa_date_from">Date From</label>';
printf(
'<input id="fisa-event-datefrom" type="text" name="_fisa_date_from" class="widefat" value="%s" />',
$from ? $from : ''
);
echo '';
echo '<br/><br/>';
echo '<label for="_fisa_date_to">Date To</label>';
printf(
'<input id="fisa-event-dateto" type="text" name="_fisa_date_to" class="widefat" value="%s" />',
$to ? $to : ''
);
}
public function save_post( $post_id, $post_object ) { // second parameter has useful info about current post
/* BRUTE FORCE debug */
// wp_die( sprintf( '<pre>%s</pre>', print_r( $_POST, true ) ) );
/**
* ADD SECURITY AND CONTENT CHECKS, omitted for brevity
*/
if( !empty( $_POST['_fisa_date_from'] ) ) {
$events_date = array(
sanitize_text_field( $_POST['_fisa_date_from']),
sanitize_text_field($_POST['_fisa_date_to'])
);
update_post_meta($post_id, '_fisa_events_date', $events_date);
}
}
}
new MyEvents();
答案 3 :(得分:0)
最简单&amp;最灵活的解决方案是使用高级自定义字段。