wordpress 如何向wordpress页面添加元框
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how to add a meta box to wordpress pages
提问by smashp
i want to make this code for pages
我想为页面制作此代码
add_action( 'add_meta_boxes', 'meta_box_video' );
function meta_box_video()
{
add_meta_box( 'video-meta-box-id', 'Video Embed', 'meta_box_callback', 'post', 'normal', 'high' );
}
function meta_box_callback( $post )
{
$values = get_post_custom( $post->ID );
$selected = isset( $values['meta_box_video_embed'] ) ? $values['meta_box_video_embed'][0] : '';
wp_nonce_field( 'my_meta_box_nonce', 'meta_box_nonce' );
?>
<p>
<label for="meta_box_video_embed"><p>Video Embed</p></label>
<textarea name="meta_box_video_embed" id="meta_box_video_embed" cols="62" rows="5" ><?php echo $selected; ?></textarea>
</p>
<p>Leave it Empty ( if you want to use an image thumbnail ) .</p>
<?php
}
add_action( 'save_post', 'meta_box_video_save' );
function meta_box_video_save( $post_id )
{
// Bail if we're doing an auto save
if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;
// if our nonce isn't there, or we can't verify it, bail
if( !isset( $_POST['meta_box_nonce'] ) || !wp_verify_nonce( $_POST['meta_box_nonce'], 'my_meta_box_nonce' ) ) return;
// if our current user can't edit this post, bail
if( !current_user_can( 'edit_post' ) ) return;
// now we can actually save the data
$allowed = array(
'a' => array( // on allow a tags
'href' => array() // and those anchords can only have href attribute
)
);
// Probably a good idea to make sure your data is set
if( isset( $_POST['meta_box_video_embed'] ) )
update_post_meta( $post_id, 'meta_box_video_embed', $_POST['meta_box_video_embed'] );
}
回答by Peter Ajtai
This:
这个：
function meta_box_video()
{
add_meta_box( 'video-meta-box-id', 'Video Embed', 'meta_box_callback', 'post', 'normal', 'high' );
}
Should specify pagenot post.
应该指定pagenot post。
function meta_box_video()
{ // --- Parameters: ---
add_meta_box( 'video-meta-box-id', // ID attribute of metabox
'Video Embed', // Title of metabox visible to user
'meta_box_callback', // Function that prints box in wp-admin
'page', // Show box for posts, pages, custom, etc.
'normal', // Where on the page to show the box
'high' ); // Priority of box in display order
}
Take a look at the Codex for add_meta_box(). The examples are very helpful. The portion you are interested in is under "Parameter". The fourth parameter allows you to specify whether you want the metabox on pages, posts, etc.
查看add_meta_box()的Codex。这些例子非常有帮助。您感兴趣的部分在“参数”下。第四个参数允许您指定是否要在页面、帖子等上使用元框。
