function add()
{
$user = User::get_by_id($_SESSION['user_id']);
$_POST['email'] = trim($_POST['email']);
$error = '';
if ($_POST['email'] == '') {
$error .= 'Please enter an email address.<br />';
}
if ($user->invites < 1) {
$error .= 'You don\'t have any invites remaining.<br />';
}
// Check if email contains spaces
if (User::check_contains_spaces($_POST['email']) == TRUE) {
$error .= 'Email address cannot contain spaces.<br />';
}
if (User::check_contains_at($_POST['email']) != TRUE) {
$error .= 'Email must contain an @ symbol.<br />';
}
// Check if already invited
if (Invite::check_invited($_SESSION['user_id'], $_POST['email']) == TRUE) {
$error .= 'You have already invited this person.<br />';
}
// Check if already a user
if (is_object(User::get_by_email($_POST['email'])) == TRUE) {
$error .= 'This person is already using ' . $this->config->name . '!<br />';
}
if ($error == '') {
// No problems so do signup + login
// Add invite to database
$id = Invite::add($_SESSION['user_id'], $_POST['email']);
// Decrement invites in users table
$user->update_invites(-1);
// Award points
if (isset($this->plugins->points)) {
$this->plugins->points->update($_SESSION['user_id'], $this->plugins->points['per_invite_sent']);
}
// Log invite
if (isset($this->plugins->log)) {
$this->plugins->log->add($_SESSION['user_id'], 'invite', $id, 'add', $_POST['email']);
}
$admin = User::get_by_id($this->config->admin_users[0]);
$to = array('email' => $_POST['email']);
$subject = '[' . $this->config->name . '] An invitation from ' . $user->username;
$link = $this->config->url . 'signup/' . $id;
$body = $this->twig_string->render(file_get_contents("themes/{$this->config->theme}/emails/invite_friend.html"), array('user' => $user, 'link' => $link, 'app' => $this));
// Email user
$this->email->send_email($to, $subject, $body);
Application::flash('success', 'Invite sent!');
} else {
$this->uri['params']['email'] = $_POST['email'];
Application::flash('error', $error);
}
$this->index();
}
private function check_email($email, $new = TRUE)
{
$return = '';
if ($email == '') {
$return .= 'Email cannot be left blank.<br />';
}
if (User::check_contains_spaces($email) == TRUE) {
$return .= 'Email cannot contain spaces.<br />';
}
if (User::check_contains_at($email) != TRUE) {
$return .= 'Email must contain an @ symbol.<br />';
}
if (User::check_email_available($email) != TRUE && $new == TRUE) {
$return .= 'An account with that email address already exists in the system. ' . $this->get_link_to('Click here', 'sessions', 'add') . ' to login.<br />';
}
return strlen($return) > 0 ? $return : TRUE;
}
