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