Right now, it looks like version 3.1.3 of the plugin cannot work for a multisite setup using WordPress 3.x.
To understand why, the first thing to know is that there are two types of settings: network-wide and per-blog.
The plugin’s multisite-handling code makes two mistakes:
- It assumes that there’s a simple API for setting the network-wide settings just as easily as it’s done for the per-blog options. That API doesn’t yet exist. See https://wordpress.stackexchange.com/questions/18314/global-settings-page-for-multisite-plugin. The current code writes to the per-blog settings and then tries to read the network-wide settings. So now you know why saved keys (and other settings) will not be read back.
- It tries to set/read all settings, whether network-wide or per-blog, using a single method (which as I described in the previous bullet point is broken). The plugin should use two separate methods depending on which settings page the admin is using: (a) read/write network-wide settings manually and (b) read/write per-bog settings using Settings API.
In the meantime, here’s a workaround:
Change wp-plugin.php:
static function retrieve_options($options_name) {
return get_option($options_name);
}
static function remove_options($options_name) {
return delete_option($options_name);
}
static function add_options($options_name, $options) {
return add_option($options_name, $options);
}
While you’re at it, you might as well disable the “Super/Network Admin” settings page by changing recaptcha.php:
function add_settings_page() {
// add the options page
/*
if ($this->environment == Environment::WordPressMU && $this->is_authority())
add_submenu_page('wpmu-admin.php', 'WP-reCAPTCHA', 'WP-reCAPTCHA', 'manage_options', __FILE__, array(&$this, 'show_settings_page'));
if ($this->environment == Environment::WordPressMS && $this->is_authority())
add_submenu_page('ms-admin.php', 'WP-reCAPTCHA', 'WP-reCAPTCHA', 'manage_options', __FILE__, array(&$this, 'show_settings_page'));
*/
This will allow you to have separate per-blog wp-recaptcha settings. But it will not allow you to have network-wide settings.
