Meta box in links / Wordpress

Question

Is there a way to save meta box value when it's added to links? Here is my code:

<?php
/*
Plugin Name: Link Date
Plugin URI: http://
Description: Adds links date field.
Version: None
Author: Auth
Author URI: http://
*/

add_action( 'add_meta_boxes', 'link_date_add' );
function link_date_add()
{
    add_meta_box( 'link-date-meta-box', 'Link Date', 'link_date', 'link', 'normal', 'high'     );
    }


function link_date( $post )
{
    $values = get_post_custom( $post->ID );
    $date = isset( $values['link_date_text'] ) ? esc_attr( $values['link_date_text'][0] ) : '';
    wp_nonce_field( 'my_link_date_nonce', 'link_date_nonce' );
    var_dump($post);
    ?>
<p>
    <label for="link_date_text">Link Date</label>
    <input type="text" name="link_date_text" id="link_date_text" value="<?php echo $date; ?>" />
</p>

<?php
}


add_action( 'save_post', 'link_date_save' );
function link_date_save( $post_id )
{
    if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return;

    if( !isset( $_POST['link_date_nonce'] ) || !wp_verify_nonce( $_POST['link_date_nonce'], 'my_link_date_nonce' ) ) return;

    if( !current_user_can( 'edit_post' ) ) return;

    $allowed = array(
        'a' => array(
        'href' => array() // and those anchords can only have href attribute
    )
);


if( isset( $_POST['link_date_text'] ) )
    update_post_meta( $post_id, 'link_date_text', wp_kses( $_POST['link_date_text'], $allowed ) );


}

?>

This code works, when post type changed to 'post', but for some reason it doesn't save data as 'link' type of post.

I saved some data from this field when post type was set as 'post', then updated the post type in code to 'link', and additionally updated the database (wp_postmeta) replacing the id with the id of link. Then this data was displayed in meta box in links, but still, bot able to update value of this metabox.

so use this [example](http://codex.wordpress.org/Function_Reference/add_meta_box#Example) and change `$screens = array( 'post', 'page' );` to `$screens = array('link' );` — David Chase, Mar 05 '13 at 00:23
would you mind sharing the working example, I'm having hard time to make it work. — El Kopyto, Mar 05 '13 at 01:53
did you try this http://codex.wordpress.org/Function_Reference/add_meta_box#Example one? — David Chase, Mar 05 '13 at 01:54
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/25567/discussion-between-david-chase-and-user1354499) — David Chase, Mar 05 '13 at 02:14

score 1 · Accepted Answer · answered Mar 05 '13 at 04:25

1

The answer is to use add_action('edit_link','save_data') and add_option('name_of_option') instead of add_post_meta view full results here MetaBox Links

answered Mar 05 '13 at 04:25

David Chase

2,055
1
18
25

@user1354499 thank you for being patient and glad i could help – David Chase Mar 05 '13 at 04:29

score 0 · Answer 2 · answered Mar 05 '13 at 15:48

After some experiments, I figured out how to save data from custom metabox in link manager into db as post meta key/value (wp_postmeta). If someone needs, here is a working example:

action( 'add_meta_boxes', 'add_link_date' );
function add_link_date()
{
    add_meta_box( 'link-date-meta-box', 'Link Date', 'link_date', 'link', 'normal', 'high' );
}

function link_date( $link )
{
    $values = get_post_custom( $link->link_id );
    $date = isset( $values['link_date'] ) ? esc_attr( $values['link_date'][0] ) : '';
    wp_nonce_field( plugin_basename( __FILE__ ), 'link_date_nonce' );
?>
<p>
    <label for="link_date_text">Link Date</label>
    <input type="text" name="link_date_text" id="link_date_text" value="<?php echo $date; ?>" />
</p>

<?php
}


add_action( 'edit_link', 'myplugin_save_postdata' );

function myplugin_save_postdata( ) {
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
        return;

    if ( !isset( $_POST['link_date_nonce'] ) || !wp_verify_nonce( $_POST['link_date_nonce'], plugin_basename( __FILE__ ) ) )
        return;

    $link_id = $_POST['link_id'];
    $linkDate = sanitize_text_field( $_POST['link_date_text'] );

    add_post_meta( $link_id, 'link_date', $linkDate, true ) or
    update_post_meta( $link_id, 'link_date', $linkDate );
}

Meta box in links / Wordpress

2 Answers2