/**
* Handles the redeem achievement form submission.
*
* Finds any achievements with the specific redemption code, and if the user hasn't already unlocked
* that achievement, it's awarded to the user.
*
* @param string $action Optional. If 'dpa-redeem-achievement', handle the form submission.
* @since Achievements (3.1)
*/
function dpa_form_redeem_achievement($action = '')
{
if ('dpa-redeem-achievement' !== $action || !dpa_is_user_active()) {
return;
}
// Check required form values are present
$redemption_code = isset($_POST['dpa_code']) ? sanitize_text_field(stripslashes($_POST['dpa_code'])) : '';
$redemption_code = apply_filters('dpa_form_redeem_achievement_code', $redemption_code);
if (empty($redemption_code) || !dpa_verify_nonce_request('dpa-redeem-achievement')) {
return;
}
// If multisite and running network-wide, switch_to_blog to the data store site
if (is_multisite() && dpa_is_running_networkwide()) {
switch_to_blog(DPA_DATA_STORE);
}
// Find achievements that match the same redemption code
$achievements = dpa_get_achievements(array('meta_key' => '_dpa_redemption_code', 'meta_value' => $redemption_code));
// Bail out early if no achievements found
if (empty($achievements)) {
dpa_add_error('dpa_redeem_achievement_nonce', __('That code was invalid. Try again!', 'achievements'));
// If multisite and running network-wide, undo the switch_to_blog
if (is_multisite() && dpa_is_running_networkwide()) {
restore_current_blog();
}
return;
}
$existing_progress = dpa_get_progress(array('author' => get_current_user_id()));
foreach ($achievements as $achievement_obj) {
$progress_obj = array();
// If we have existing progress, pass that to dpa_maybe_unlock_achievement().
foreach ($existing_progress as $progress) {
if ($achievement_obj->ID === $progress->post_parent) {
// If the user has already unlocked this achievement, don't give it to them again.
if (dpa_get_unlocked_status_id() === $progress->post_status) {
$progress_obj = false;
} else {
$progress_obj = $progress;
}
break;
}
}
if (false !== $progress_obj) {
dpa_maybe_unlock_achievement(get_current_user_id(), 'skip_validation', $progress_obj, $achievement_obj);
}
}
// If multisite and running network-wide, undo the switch_to_blog
if (is_multisite() && dpa_is_running_networkwide()) {
restore_current_blog();
}
}
/**
* Displays achievement notices
*
* @since Achievements (3.0)
*/
function dpa_achievement_notices()
{
// Bail if not viewing an achievement
if (!dpa_is_single_achievement()) {
return;
}
// Filter notice text and bail if empty
$notice_text = apply_filters('dpa_achievement_notices', '', dpa_get_achievement_id());
if (empty($notice_text)) {
return;
}
dpa_add_error('achievement_notice', $notice_text, 'message');
}
