Jadikan nama tampilan unik

Saat ini Anda dapat membuat Nama Tampilan Anda apa pun yang Anda inginkan, Anda bahkan dapat menyamar sebagai admin. Apakah mungkin membuat Nama Tampilan unik?

Sejauh yang saya ketahui, yang dapat Anda lakukan adalah memfilter nama tampilan melalui pre_user_display_namedan memeriksa apakah sudah ada. Sayangnya WP_User_Querytidak mendukung permintaan dengan display_name, jadi kami juga harus menambahkan ke WHEREklausa melalui pre_user_query. Selain itu, tidak ada cara elegan yang dapat saya pikirkan untuk menangani case di mana display_namesudah ada di luar mengembalikan apa-apa, karena kita tidak tahu melalui filter apa pengguna nama tampilan potensial ini dilampirkan. atau mungkin aku hanya lelah dan kehilangan sesuatu yang jelas! Bagaimanapun, inilah tes cepat yang saya buat:

class wpa82239_display_name {
    private $display_name;

    public function __construct(){
        add_filter( 'pre_user_display_name', array( $this, 'display_name_filter' ) );
    }

    public function display_name_filter( $display_name ){

        $this->display_name = $display_name;
        add_action( 'pre_user_query', array( $this, 'user_query_filter' ) );
        $args = array(
            'number' => 1,
            'fields' => 'ID'
        );
        $user_search = new WP_User_Query( $args );
        remove_action( 'pre_user_query', array( $this, 'user_query_filter' ) );

        if( 0 == $user_search->total_users )
            return $display_name;

        return null;
    }

    public function user_query_filter( $query ){
        global $wpdb;
        $query->query_where .= $wpdb->prepare(
            " AND $wpdb->users.display_name = %s",
            $this->display_name
        );
    }

}
$wpa82239_display_name = new wpa82239_display_name();

Ini cukup kotor, tetapi berhasil, cukup tempatkan di theme.fp tema Anda di satu situs, atau di file functions.php di dalam folder mu-plugins Anda di multisite.

Skrip juga akan memindai pengguna yang ada (jika situs Anda sudah memiliki banyak) dan nama tampilan yang tidak unik akan diperbarui dan diganti dengan nama pengguna.

Saya tahu ini tidak sepenuhnya ideal, tetapi saran untuk berurusan dengan pengguna yang ada atau perbaikan selalu diterima.

 
    // Make nickname & display_name unique
    // and automatically change non unique nicks & display name to username
    // in case you already have existing users
    // by Ashok & Vaughan Montgomery
    /*
     * adding action when user profile is updated
     */
    add_action('personal_options_update', 'check_display_name');
    add_action('edit_user_profile_update', 'check_display_name');
    function check_display_name($user_id) {
            global $wpdb;
        // Getting user data and user meta data
            $err['display'] = $wpdb->get_var($wpdb->prepare("SELECT COUNT(ID) FROM $wpdb->users WHERE display_name = %s AND ID <> %d", $_POST['display_name'], $_POST['user_id']));
        $err['nick'] = $wpdb->get_var($wpdb->prepare("SELECT COUNT(ID) FROM $wpdb->users as users, $wpdb->usermeta as meta WHERE users.ID = meta.user_id AND meta.meta_key = 'nickname' AND meta.meta_value = %s AND users.ID <> %d", $_POST['nickname'], $_POST['user_id']));
        foreach($err as $key => $e) {
            // If display name or nickname already exists
            if($e >= 1) {
                $err[$key] = $_POST['username'];
                // Adding filter to corresponding error
                add_filter('user_profile_update_errors', "check_{$key}_field", 10, 3);
            }
        }
    }
    /*
     * Filter function for display name error
     */
    function check_display_field($errors, $update, $user) {
            $errors->add('display_name_error',('Sorry, Display Name is already in use. It needs to be unique.'));
            return false;
    }
    /*
     * Filter function for nickname error
     */
    function check_nick_field($errors, $update, $user) {
            $errors->add('display_nick_error',('Sorry, Nickname is already in use. It needs to be unique.'));
            return false;
    }
    /*
     * Check for duplicate display name and nickname and replace with username
     */
    function display_name_and_nickname_duplicate_check() {
        global $wpdb;
        $query = $wpdb->get_results("SELECT * FROM $wpdb->users");
        $query2 = $wpdb->get_results("SELECT * FROM $wpdb->users as users, $wpdb->usermeta as meta WHERE users.ID = meta.user_id AND meta.meta_key = 'nickname'");
        $c = count($query);
        for($i = 0; $i < $c; $i++) {
            for($j = $i+1; $j < $c; $j++) {
                if($query[$i]->display_name == $query[$j]->display_name){
                    wp_update_user(
                            array(
                                  'ID' => $query[$i]->ID,
                                  'display_name' => $query[$i]->user_login
                            )
                        );
                }
                if($query2[$i]->meta_value == $query2[$j]->meta_value){
                    update_user_meta($query2[$i]->ID, 'nickname', $query2[$i]->user_login, $prev_value);
                }
            }
        }
    }
    // Call the function
    display_name_and_nickname_duplicate_check();


/*
 * Calling the display_name_and_nickname_duplicate_check() again when a new user is registered
 */
add_action( 'user_register', 'check_nickname', 10, 1 );
function check_nickname() {
    display_name_and_nickname_duplicate_check();
}

Coba ini:

add_action('personal_options_update', 'check_display_name');
add_action('edit_user_profile_update', 'check_display_name');
function check_display_name($user_id) {
global $wpdb;
// Getting user data and user meta data
$err['display'] = $wpdb->get_var($wpdb->prepare("SELECT COUNT(ID) FROM $wpdb->users WHERE display_name = %s AND ID <> %d", $_POST['display_name'], $_POST['user_id']));
$err['nick'] = $wpdb->get_var($wpdb->prepare("SELECT COUNT(ID) FROM $wpdb->users as users, $wpdb->usermeta as meta WHERE users.ID = meta.user_id AND meta.meta_key = 'nickname' AND meta.meta_value = %s AND users.ID <> %d", $_POST['nickname'], $_POST['user_id']));
foreach($err as $key => $e) {
// If display name or nickname already exists
if($e >= 1) {
$err[$key] = $_POST['username'];
// Adding filter to corresponding error
add_filter('user_profile_update_errors', "check_{$key}_field", 10, 3);
}
}
}
/*
* Filter function for display name error
*/
function check_display_field($errors, $update, $user) {
$errors->add('display_name_error',__('Sorry, Display Name is already in use. It needs to be unique.'));
return false;
}
/*
* Filter function for nickname error
*/
function check_nick_field($errors, $update, $user) {
$errors->add('display_nick_error',__('Sorry, Nickname is already in use. It needs to be unique.'));
return false;
}
/*
* Check for duplicate display name and nickname and replace with username
*/
function display_name_and_nickname_duplicate_check() {
global $wpdb;
$query = $wpdb->get_results("select * from $wpdb->users");
$query2 = $wpdb->get_results("SELECT * FROM $wpdb->users as users, $wpdb->usermeta as meta WHERE users.ID = meta.user_id AND meta.meta_key = 'nickname'");
$c = count($query);
for($i = 0; $i < $c; $i++) {
for($j = $i+1; $j < $c; $j++) {
if($query[$i]->display_name == $query[$j]->display_name){
wp_update_user(
array(
'ID' => $query[$i]->ID,
'display_name' => $query[$i]->user_login
)
);
}
if($query2[$i]->meta_value == $query2[$j]->meta_value){
update_user_meta($query2[$i]->ID, 'nickname', $query2[$i]->user_login, $prev_value);
}
}
}
}
// Call the function
display_name_and_nickname_duplicate_check();

/*
* Calling the display_name_and_nickname_duplicate_check() again when a new user is registered
*/
add_action( 'user_register', 'check_nickname', 10, 1 );
function check_nickname() {
display_name_and_nickname_duplicate_check();
}

Tautan: http://bappi-d-great.com/unique-display-name-and-nickname-in-wordpress/