Can’t get metabox value (a url) returned using WPAlchemy

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I’m using the WP Alchemy class to add custom metaboxes to templates in the admin panel and pull results from those metaboxes into the theme front-end. Here is the relevant code in content-link.php (in the loop – in Twenty Eleven Theme). 

<a href="<?php display_url_info(); ?>"><img src="http://localhost/wordpress/wp-content/uploads/2011/08/external-link-red03.png"/></a>

Right now the link shows just the permalink instead of the url in the metabox. If I hardcode a url in there instead, the custom url shows up on the post. I’ve verified it being properly stored under _custom_meta in the db (and successfully implemented metabox display in other templates. Here’s the value in the db:

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a:1:{s:5:"links";a:1:{i:0;a:2:{s:6:"domain";s:25:"http://stackexchange.com/";s:13:"post_link_url";s:48:"http://wordpress.stackexchange.com/questions/ask";}}}

Here’s my plugin file: 

$basic_metabox = new WPAlchemy_MetaBox (

    array (
    'id' => '_custom_meta',
    'title' => 'Basic Meta',
    'template' => ABSPATH . 'wp-content/themes/beernews-child-theme/custom/basic-meta.php',
    'types' => array('post','link')
    )

);

   add_filter('beernews-child-theme_post', 'display_url_info');

function display_url_info() {

    // usually needed
    global $basic_metabox;

    // get the meta data for the current post
    $basic_metabox->the_meta(); ?>

    <?php if ($basic_metabox->get_the_value('post_link_url')) {

    echo $basic_metabox->the_value('post_link_url');

}

}
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2 comments

  1. Try changing your display_url_info function to 

    <?php
add_filter('beernews-child-theme_post', 'display_url_info');

function display_url_info() {
    // usually needed
    global $basic_metabox;
    $basic = $basic_metabox->the_meta(); 

    if($basic['post_link_url']) {
        echo $basic['post_link_url'];
    } else {
        echo 'ERROR : "post_link_url" empty';
    }
}
?>

    And not to be a jerk, but I would like to point out that WP Alchemy is not a plugin but rather a PHP Class. I just do not want other people to get confused.

  2. Not sure why you are using the filter exactly …

    I would do the following in the theme file:

    <?php global $basic_metabox; /* this is just needed once */ ?>
<?php if ($basic_metabox->have_value('post_link_url')) { ?>
<a href="<?php $basic_metabox->the_value('post_link_url'); ?>"><img src="http://localhost/wordpress/wp-content/uploads/2011/08/external-link-red03.png"/></a> 
<?php } ?>

    Also note that get_the_value() and the_value() are different, the first returning a value and the second echoing out a value.