I’m using the Flickr Photo Album plugin for WordPress in another web page which I’ve recently had to update to WP2.7.1.  So I decided to update also the mentioned plugin to version 1.1. The updating process was smooth, but I realized there was a set (album) I didn’t want to show in my web… so I asked myself:

Can you select which albums to display?

The answer was neither clear nor clean, that’s why I decided to explore the plugin code in order to find the exact point where I could filter which albums to show. And I found it. Of course there were other points, but this one satisfied both requirements:

• To affect every place where albums were used.
• Not to modify the internal code which connects to Flickr.

The file where this could be done was flickr/lib.flickr.php, exactly in the getAlbums() method:

 function getAlbums() {
        $albums = $this->photosets_getList();
        $visible_albums = array('123456789','123456789','123456789','123456789');
        $return = array();
        if (is_array($albums['photoset'])) foreach ($albums['photoset'] as $album) {
            if (in_array($album['id'], $visible_albums)) {
                $row = array();
                $row['id'] = $album['id'];
                $row['title'] = $album['title'];
                $row['description'] = $album['description'];
                $row['primary'] = $album['primary'];
                $row['photos'] = $album['photos'];
                $row['pagename2'] = $this->_sanitizeTitle($album['title']);
                $row['pagename'] = $row['pagename2'] . '.html';
                $return[$row['id']] = $row;
            }
        }
        return $return;
    }

It’s as easy as fill the visible_albums array with the ids of the albums you want to show. If in doubt just comment on this post and I’ll try to help you!