function roles_capabilities_edit()
{
global $wpdb, $current_user;
if (isset($_POST['save_roles'])) {
$objrole = new mgm_roles();
extract($_POST);
$status = 'error';
$role_type = '';
$message = array();
if (!empty($rolename)) {
$error = false;
foreach ($rolename as $role => $value) {
//added later to consider only the edited role:
if ($role == $selected_role) {
$value = trim(mgm_escape($value));
if (empty($value)) {
$message[] = __('Role cannot be blank', 'mgm');
$error = true;
} elseif (!preg_match("/^[A-Za-z0-9_,\\s]+\$/", $value)) {
$message[] = __('Role cannot contain special characters.', 'mgm');
$error = true;
} elseif (!$objrole->is_role_unique($value, true, $role)) {
$message[] = __('Role/capability already exists.', 'mgm');
$error = true;
}
if (!isset($chk_capability[$role]) || isset($chk_capability[$role]) && empty($chk_capability[$role])) {
$message[] = __('Capability must be selected', 'mgm');
$error = true;
}
break;
}
}
if (!$error) {
//save roles:
foreach ($rolename as $role => $value) {
if ($role == $selected_role) {
$key = $role;
//save Role name:
if (!in_array($role, $objrole->default_roles)) {
//please note: this will return the edited role
$role = $objrole->edit_role($role, $value);
}
//remove
if (!empty($chk_capability[$key])) {
//save capabilities:
$arr_previous_caps = $objrole->get_capabilities($role);
$arr_new_caps = $chk_capability[$key];
$arr_to_add = array_diff($arr_new_caps, $arr_previous_caps);
$arr_to_remove = array_diff($arr_previous_caps, $arr_new_caps);
//add new capabilities:
if (!empty($arr_to_add)) {
foreach ($arr_to_add as $cap) {
$cap = mgm_escape($cap);
//grant access
$objrole->update_capability_role($role, $cap, true);
}
}
//remove access if any capabilities unchecked
if (!empty($arr_to_remove)) {
foreach ($arr_to_remove as $cap) {
$cap = mgm_escape($cap);
//remove access
$objrole->update_capability_role($role, $cap, false);
}
}
}
break;
}
}
$type = $role_type;
//from post
$message[] = __('Successfully saved the changes.', 'mgm');
$status = 'success';
}
}
echo json_encode(array('status' => $status, 'message' => implode("<br/>", $message), 'type' => $type));
exit;
}
}