我有一个自定义帖子类型（＆＃34;网站＆＃34;），我用它来显示我们的客户端，我正在尝试将自定义元框添加到添加/编辑网站页面。我正在使用WordPress codex（http://codex.wordpress.org/Function_Reference/add_meta_box）中的示例，并且我能够在添加/编辑网站页面中显示元框的标题，但是有＆＃39;没有文字框输入网站网址。
这是我的代码：
<?php
// Add the Meta Box
/* function nw_add_custom_meta_box() {
add_meta_box(
'website', // $id
'Website', // $title
'show_custom_meta_box', // $callback
'site', // $page
'normal', // $context
'high'); // $priority
}
add_action('add_meta_boxes', 'nw_add_custom_meta_box');
*/
/**
* Adds a box to the main column on the Post and Page edit screens.
*/
function nw_add_custom_meta_box() {
$screens = array( 'site' ); // add items to add to multiple post types
foreach ( $screens as $screen ) {
add_meta_box(
'website', // $id
'Website', // $title
'show_custom_meta_box', // $callback
$screen, // $page
'normal', // $context
'high' // $priority
);
}
}
add_action( 'add_meta_boxes', 'nw_add_custom_meta_box' );
/**
* Prints the box content.
*
* @param WP_Post $post The object for the current post/page.
*/
function myplugin_meta_box_callback( $post ) {
// Add an nonce field so we can check for it later.
wp_nonce_field( 'website', 'website_nonce' );
/*
* Use get_post_meta() to retrieve an existing value
* from the database and use the value for the form.
*/
$value = get_post_meta( $post->ID, '_website', true );
echo '<label for="website">';
_e( 'Website Address', 'myplugin_textdomain' );
echo '</label> ';
echo '<input type="text" id="website" name="website" value="' . esc_attr( $value ) . '" size="25" />';
}
/**
* When the post is saved, saves our custom data.
*
* @param int $post_id The ID of the post being saved.
*/
function nuggetweb_save_meta_box_data( $post_id ) {
/*
* We need to verify this came from our screen and with proper authorization,
* because the save_post action can be triggered at other times.
*/
// Check if our nonce is set.
if ( ! isset( $_POST['website_nonce'] ) ) {
return;
}
// Verify that the nonce is valid.
if ( ! wp_verify_nonce( $_POST['website_nonce'], 'website' ) ) {
return;
}
// If this is an autosave, our form has not been submitted, so we don't want to do anything.
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
// Check the user's permissions.
if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) {
if ( ! current_user_can( 'edit_page', $post_id ) ) {
return;
}
} else {
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return;
}
}
/* OK, it's safe for us to save the data now. */
// Make sure that it is set.
if ( ! isset( $_POST['website'] ) ) {
return;
}
// Sanitize user input.
$my_data = sanitize_text_field( $_POST['website'] );
// Update the meta field in the database.
update_post_meta( $post_id, '_website', $my_data );
}
add_action( 'save_post', 'nuggetweb_save_meta_box_data' );
?>
答案 0 :(得分：3)
此处samplepost表示自定义帖子类型
<?php
add_action( 'admin_init', 'my_admin_samplepost' );
function my_admin_samplepost() {
add_meta_box( 'samplepost_meta_box', 'Car Details', 'display_samplepost_meta_box','samplepost', 'normal', 'high' );
}
function display_samplepost_meta_box( $samplepost ) {
?>
<h4>General Details</h4>
<table width="100%">
<tr>
<td style="width: 25%">Monthly Paymeny</td>
<td><input type="text" style="width:425px;" name="meta[payment]" value="<?php echo esc_html( get_post_meta( $samplepost->ID, 'payment', true ) );?>" />
</td>
</tr>
<tr>
<td>Price ($)</td>
<td><input type="text" style="width:425px;" name="meta[price]" placeholder="$" value="<?php echo esc_html( get_post_meta( $samplepost->ID, 'price', true ) );?>" />
</td>
</tr>
<tr>
<td>Milage</td>
<td><input type="text" style="width:425px;" name="meta[milage]" value="<?php echo esc_html( get_post_meta( $samplepost->ID, 'milage', true ) );?>" />
</td>
</tr>
</table>
<?php
}
add_action( 'save_post', 'add_samplepost_fields', 10, 2 );
function add_samplepost_fields( $samplepost_id, $samplepost ) {
if ( $samplepost->post_type == 'samplepost' ) {
if ( isset( $_POST['meta'] ) ) {
foreach( $_POST['meta'] as $key => $value ){
update_post_meta( $samplepost_id, $key, $value );
}
}
}
}
答案 1 :(得分：1)
一切都是正确的，除非你没有使用元框的正确回调，改变你的：
function myplugin_meta_box_callback( $post )
为：
function show_custom_meta_box( $post )
正如您在此处定义的名称：
/**
* Adds a box to the main column on the Post and Page edit screens.
*/
function nw_add_custom_meta_box() {
$screens = array( 'site' ); // add items to add to multiple post types
foreach ( $screens as $screen ) {
add_meta_box(
'website', // $id
'Website', // $title
'show_custom_meta_box', // $callback
$screen, // $page
'normal', // $context
'high' // $priority
);
}
}
答案 2 :(得分：1)
<?php
function myplugin_add_meta_box() {
$screens = array( 'site' );
foreach ( $screens as $screen ) {
add_meta_box(
'website',
'Website',
'show_custom_meta_box',
$screen,
'normal',
'high'
);
}
}
add_action( 'add_meta_boxes', 'myplugin_add_meta_box' );
function show_custom_meta_box( $post ) {
wp_nonce_field( 'website', 'website_nonce' );
$value = get_post_meta( $post->ID, '_website', true );
echo '<label for="website">';
_e( 'Description for this field', 'myplugin_textdomain' );
echo '</label> ';
echo '<input type="text" id="website" name="website" value="' . esc_attr( $value ) . '" size="25" />';
}
function myplugin_save_meta_box_data( $post_id ) {
if ( ! isset( $_POST['website_nonce'] ) ) {
return;
}
if ( ! wp_verify_nonce( $_POST['website_nonce'], 'website' ) ) {
return;
}
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) {
if ( ! current_user_can( 'edit_page', $post_id ) ) {
return;
}
} else {
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return;
}
}
if ( ! isset( $_POST['website'] ) ) {
return;
}
$my_data = sanitize_text_field( $_POST['website'] );
update_post_meta( $post_id, '_website', $my_data );
}
add_action( 'save_post', 'myplugin_save_meta_box_data' );
?>