[Plugin: User Photo] Replicate photo across multisite blogs

After reviewing the code again I noticed the switch_to_blog() call takes quite a lot of time to process. Reading in the WPMU Codex there’s a warning not to use this function in front-end. On the regular Codex page there’s no warning though.

I think this problem needs a different solution to my approach above.

I had to modify this plugin for Multisite too but I think my needs were a little different. I wanted all the userphotos in the base directory instead of worrying about the author’s primary blog.

I made two functions to get the base upload directory and the base upload url in a multisite environment –

function userphoto_get_multisite_upload_dir() {
    return WP_CONTENT_DIR . '/uploads';
}

function userphoto_get_multisite_upload_url() {
    global $table_prefix, $wpdb;

    $base_opt_table = $wpdb->base_prefix . 'options';
    $site_url = $wpdb->get_var("SELECT option_value FROM $base_opt_table WHERE option_name = 'siteurl'");
    $upload_path = $wpdb->get_var("SELECT option_value FROM $base_opt_table WHERE option_name = 'upload_path'"); 

    return $site_url . '/' . $upload_path;
}

And then plugged that into the appropriate spots in the user-photo.php file.
Here’s a gist of the modified user-photo.php if anybody needs to do the same thing: https://gist.github.com/1443952