doc.silverstripe.org/sapphire/forms/LanguageDropdownField.php
2011-04-10 21:53:26 +00:00

71 lines
2.7 KiB
PHP
Executable File

<?php
/**
* An extension to dropdown field, pre-configured to list languages.
* The languages already used in the site will be on top.
* @package forms
* @subpackage fields-relational
*/
class LanguageDropdownField extends GroupedDropdownField {
/**
* Create a new LanguageDropdownField
* @param string $name
* @param string $title
* @param array $excludeLocales List of locales that won't be included
* @param string $translatingClass Name of the class with translated instances where to look for used languages
* @param string $list Indicates the source language list. Can be either Common-English, Common-Native, Locale-English, Locale-Native
*/
function __construct($name, $title, $excludeLocales = array(), $translatingClass = 'SiteTree', $list = 'Common-English', $instance = null) {
$usedLocalesWithTitle = Translatable::get_existing_content_languages($translatingClass);
$usedLocalesWithTitle = array_diff_key($usedLocalesWithTitle, $excludeLocales);
if('Common-English' == $list) $allLocalesWithTitle = i18n::get_common_languages();
else if('Common-Native' == $list) $allLocalesWithTitle = i18n::get_common_languages(true);
else if('Locale-English' == $list) $allLocalesWithTitle = i18n::get_common_locales();
else if('Locale-Native' == $list) $allLocalesWithTitle = i18n::get_common_locales(true);
else $allLocalesWithTitle = i18n::get_locale_list();
if(isset($allLocales[Translatable::default_locale()])) unset($allLocales[Translatable::default_locale()]);
// Limit to allowed locales if defined
// Check for canTranslate() if an $instance is given
$allowedLocales = Translatable::get_allowed_locales();
foreach($allLocalesWithTitle as $locale => $localeTitle) {
if(
($allowedLocales && !in_array($locale, $allowedLocales))
|| ($excludeLocales && in_array($locale, $excludeLocales))
|| ($usedLocalesWithTitle && array_key_exists($locale, $usedLocalesWithTitle))
) {
unset($allLocalesWithTitle[$locale]);
}
}
// instance specific permissions
foreach($allLocalesWithTitle as $locale => $localeTitle) {
if($instance && !$instance->canTranslate(null, $locale)) {
unset($allLocalesWithTitle[$locale]);
}
}
foreach($usedLocalesWithTitle as $locale => $localeTitle) {
if($instance && !$instance->canTranslate(null, $locale)) {
unset($usedLocalesWithTitle[$locale]);
}
}
// Sort by title (array value)
asort($allLocalesWithTitle);
if(count($usedLocalesWithTitle)) {
asort($usedLocalesWithTitle);
$source = array(
_t('Form.LANGAVAIL', "Available languages") => $usedLocalesWithTitle,
_t('Form.LANGAOTHER', "Other languages") => $allLocalesWithTitle
);
} else {
$source = $allLocalesWithTitle;
}
parent::__construct($name, $title, $source);
}
}
?>