/**
 * Creates a blacklist entry for the given feed item.
 * 
 * @since 4.4
 * @param int|string The ID of the feed item to add to the blacklist
 */
function wprss_blacklist_item($ID)
{
    // Return if feed item is null
    if (is_null($ID)) {
        return;
    }
    // Get the feed item data
    $item_title = get_the_title($ID);
    $item_permalink = get_post_meta($ID, 'wprss_item_permalink', TRUE);
    // If not an imported item, stop
    if ($item_permalink === '') {
        wprss_log_obj('An item being blacklisted was ignored for not being an imported item', $ID, null, WPRSS_LOG_LEVEL_INFO);
        return;
    }
    // Prepare the data for blacklisting
    $title = apply_filters('wprss_blacklist_title', trim($item_title));
    $permalink = apply_filters('wprss_blacklist_permalink', trim($item_permalink));
    // Get the blacklisted items
    $blacklist = wprss_get_blacklist();
    // Add the item to the blacklist
    $blacklist[$permalink] = $title;
    // Delete the item
    wp_delete_post($ID, TRUE);
    // Add the blacklisted item
    $id = wp_insert_post(array('post_title' => $title, 'post_type' => 'wprss_blacklist', 'post_status' => 'publish'));
    update_post_meta($id, 'wprss_permalink', $permalink);
}
/**
 * Creates a blacklist entry for the given feed item.
 * 
 * @since 4.4
 * @param int|string The ID of the feed item to add to the blacklist
 */
function wprss_blacklist_item($ID)
{
    // Return if feed item is null
    if (is_null($ID)) {
        return;
    }
    // Get the feed item data
    $item_title = get_the_title($ID);
    $item_permalink = get_post_meta($ID, 'wprss_item_permalink', TRUE);
    // Prepare the data for blacklisting
    $title = apply_filters('wprss_blacklist_title', trim($item_title));
    $permalink = apply_filters('wprss_blacklist_permalink', trim($item_permalink));
    // Get the blacklisted items
    $blacklist = wprss_get_blacklist();
    // Add the item to the blacklist
    $blacklist[$permalink] = $title;
    // Delete the item
    wp_delete_post($ID, TRUE);
    // Add the blacklisted item
    $id = wp_insert_post(array('post_title' => $title, 'post_type' => 'wprss_blacklist', 'post_status' => 'publish'));
    update_post_meta($id, 'wprss_permalink', $permalink);
}