/**
* Returns a list of information about each student blog.
*
* The blog information will be returned as an array, with keys of user IDs.
* Each key's values will be an object with the following attributes:
*
* blog_id - the possible ID of the blog
* url - the URL of the blog
*
* If running in multisite mode, `blog_id` will be the ID of the user's
* blog. If running in single-site mode, however, it will be null, as only
* one blog exists, and the blog URL is of the author archive page.
*
* @return array information on all student blogs
*
* @since 0.5
*/
public static function get_student_blogs()
{
$blogs = array();
// Cycle through every student
foreach (self::get_student_user_ids() as $student_id) {
// Add the first non-root blog on which the student is an admin if
// running in multisite mode, or use their author archive URL if
// running in single-site mode
$blog_info = array();
if (ClassBlogs_Utils::is_multisite()) {
foreach (ClassBlogs_Utils::get_non_root_blog_ids() as $blog_id) {
$admins = get_users("blog_id={$blog_id}&include={$student_id}&role=administrator");
if (count($admins) == 1) {
$blog_info = array('blog_id' => $blog_id, 'url' => ClassBlogs_NXTClass::get_blogaddress_by_id($blog_id));
break;
}
}
} else {
$blog_info = array('blog_id' => null, 'url' => get_author_posts_url($student_id));
}
if (!empty($blog_info)) {
$blogs[$student_id] = (object) $blog_info;
}
}
return $blogs;
}
