Adding translation to ui datepicker

There is a little warning when your locale is “en”
There is the correction :

$locale = $this->getJqueryUII18nLocale();
 if ($locale) {
     wp_enqueue_script('jquery-ui-i18n-'.$locale, 'https://jquery-ui.googlecode.com/svn/tags/latest/ui/i18n/jquery.ui.datepicker-'.$locale.'.js', array('jquery-ui-datepicker'));
}

/**
 * Get the locale according to the format available in the jquery ui i18n file list
 * @url https://github.com/jquery/jquery-ui/tree/master/ui/i18n
 * @return string ex: "fr" ou "en-GB"
 */
public function getJqueryUII18nLocale() {
    //replace _ by - in "en_GB" for example
    $locale = str_replace( '_', '-', get_locale() );
    switch ($locale) {
        case 'ar-DZ':
        case 'cy-GB':
        case 'en-AU':
        case 'en-GB':
        case 'en-NZ':
        case 'fr-CH':
        case 'nl-BE':
        case 'nl-BE':
        case 'pt-BR':
        case 'sr-SR':
        case 'zh-CN':
        case 'zh-HK':
        case 'zh-TW':
            //For all this locale do nothing the file already exist
            break;
        default:
            //for other locale keep the first part of the locale (ex: "fr-FR" -> "fr")
            $locale = substr($locale, 0, strpos($locale, '-'));
            //English is the default locale
            $locale = ($locale == 'en') ? '' : $locale;
            break;
    }

    return $locale;
}

Thanks, will have a look at adding this

We have just added configurations for this in the options page. Thanks for your feedback.

Thank you, I’ll test it !