我正在尝试向我的wordpress帖子编辑页面添加一些自定义元框。我添加了这个框(视频网址)但是当我尝试将帖子中的信息调用到字段中时,设置值没有任何显示。我相信我正确保存它,但是在保存之后我无法显示它,请帮忙。以下是添加和保存元框信息的代码:
<!-- adding the video url meta box prototype data -->
<?php
add_action( 'add_meta_boxes', 'cd_meta_box_add' );
function cd_meta_box_add()
{
add_meta_box( 'post-video', 'Video URL', 'video_url_meta_box', 'post', 'side', 'high' );
}
?>
<!-- rendering the video url meta box on the post edit page -->
<?php
function video_url_meta_box( $post )
{
$value = get_post_meta( $post->ID, 'video_url_text', true );
wp_nonce_field( 'video_url_nonce', 'meta_box_nonce' );
?>
<p>
<label for="video_url_text">Youtube or Vimeo URL</label>
<input type="text" name="video_url_text" id="video_url_text" value="<?php echo $value; ?>" />
</p>
<?php
}
?>
<!-- Saving the video url meta box data -->
<?php
add_action( 'save_post', 'video_url_save' );
function video_url_save( $post_id )
{
//return if we're doing an auto save
if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
//return if we can't verify nonce or it isn't there
if( !isset( $_POST['video_url_nonce'] ) || !wp_verify_nonce( $_POST['meta_box_nonce'], 'video_url_nonce' ) ) return;
//return if the current user can't edit the post
if( !current_user_can( 'edit_page' ) ) return;
// save data once all checks are passed
// make sure the url is set
if( isset( $_POST['video_url_text'] ) )
update_post_meta( $post_id, 'video_url_text' );
}
?>
答案 0 :(得分:1)
我最终将所有代码移动到自定义插件中,并使其工作如下所示:
/**
* Adds the meta boxes to the post editing screen
*/
function weshine_meta_boxes() {
add_meta_box( 'video_url_meta', __( 'Video URL', 'video-url-text' ), 'video_url_meta_callback', 'post', 'side', 'high' );
add_meta_box( 'caption_text_meta', __( 'Caption Text', 'thumb-caption-text' ), 'caption_text_meta_callback', 'post', 'side', 'high');
}
add_action( 'add_meta_boxes', 'weshine_meta_boxes' );
/**
* Outputs the content of the meta box
*/
function video_url_meta_callback( $post ) {
wp_nonce_field( basename( __FILE__ ), 'prfx_nonce' );
$video_url_stored_meta = get_post_meta( $post->ID );
?>
<p>
<label for="video-url" class="prfx-row-title"><?php _e( 'Enter Youtube or Vimeo URL', 'video-url-text' )?></label>
<input type="text" name="video-url" id="video-url" value="<?php if ( isset ( $video_url_stored_meta['video-url'] ) ) echo $video_url_stored_meta['video-url'][0]; ?>"$
</p>
<?php
}
/**
* Saves the custom meta input
*/
function video_url_meta_save( $post_id ) {
// Checks save status
$is_autosave = wp_is_post_autosave( $post_id );
$is_revision = wp_is_post_revision( $post_id );
$is_valid_nonce = ( isset( $_POST[ 'prfx_nonce' ] ) && wp_verify_nonce( $_POST[ 'prfx_nonce' ], basename( __FILE__ ) ) ) ? 'true' : 'false';
// Exits script depending on save status
if ( $is_autosave || $is_revision || !$is_valid_nonce ) {
return;
}
// Checks for input and sanitizes/saves if needed
if( isset( $_POST[ 'video-url' ] ) ) {
update_post_meta( $post_id, 'video-url', sanitize_text_field( $_POST[ 'video-url' ] ) );
}
}
add_action( 'save_post', 'video_url_meta_save' );