chanpory

Okay, I figured out some hacks to get Tag description working. They’re core hacks for now. I assume it could be turned into a plug-in but I have little experience in that. For now, here’s what you can do to enable Tag Descriptions.

In wp-admin/edit-tag-form.php, add the following code right before the </table> tag:

<tr class="form-field">
			<th scope="row" valign="top"><label for="description"><?php _e('Description') ?></label></th>
			<td><textarea name="description" id="tag_description" rows="5" cols="50" style="width: 97%;"><?php echo wp_specialchars($tag->description); ?></textarea><br />
            <?php _e('The description is snot prominent by default, however some themes may show it.'); ?></td>
		</tr>

This will create a description field in the edit tags form in WordPress admin.

Next, in wp-includes/general-template.php, add the the following function:

function single_tag_description($prefix = '', $display = true ) {
	if ( !is_tag() )
		return;

	$tag_id = intval( get_query_var('tag_id') );

	if ( !empty($tag_id) ) {
		$my_tag = &get_term($tag_id, 'post_tag', OBJECT, 'display');
		if ( is_wp_error( $my_tag ) )
			return false;
		$my_tag_description = apply_filters('single_tag_description', $my_tag->description);
		if ( !empty($my_tag_description) ) {
			if ( $display )
				echo $prefix . $my_tag_description;
			else
				return $my_tag_description;
		}
	}
}

This will allow you to display the Tag’s description text on a Tag archive page. Just put in this code into your theme:

<?php single_tag_description(); ?>

Hope that helps anyone who wondered why Tag description text was omitted