Display Custom Field in Sidebar if Value is Present

Question

I'm trying to use 'if' 'else' to display a link button if I have a value in the 'TourURL' custom field, and if not, nothing will display but can't seem to get the if code to work:

<?php if(global $wp_query;
    $postid = $wp_query->post->ID;
    echo get_post_meta($postid, 'TourURL', true);
    wp_reset_query();
): ?>
            <P>Show Link</P>

<?php else : ?>
            <P>No Link</P>

<?php endif; ?>

Thanks!

Answer 1

I think, you're mistaken in how if works...?

$post_meta = get_post_meta(
    $GLOBALS['wp_query']->post->ID,
    'TourURL',
    true
);
if (! empty($post_meta)) echo '<p>Show Link</p>';
else echo '<p>No Link</p>';

This should do what you want - if I understood you correctly.

// UPDATED