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PhpMessageSource.php
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PhpMessageSource.php
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<?php
/**
* @link https://craftcms.com/
* @copyright Copyright (c) Pixel & Tonic, Inc.
* @license https://craftcms.github.io/license/
*/
namespace craft\i18n;
use Craft;
use craft\helpers\App;
use yii\base\Exception;
/**
* Class PhpMessageSource
*
* @author Pixel & Tonic, Inc. <support@pixelandtonic.com>
* @since 3.0.0
*/
class PhpMessageSource extends \yii\i18n\PhpMessageSource
{
/**
* @var bool Whether the messages can be overridden by translations in the site’s translations folder
*/
public bool $allowOverrides = false;
/**
* @inheritdoc
*/
protected function loadMessages($category, $language): array
{
$messages = parent::loadMessages($category, $language);
if ($this->allowOverrides) {
$overrideMessages = $this->_loadOverrideMessages($category, $language);
$messages = array_merge($messages, $overrideMessages);
}
return $messages;
}
/**
* @inheritdoc
*/
protected function getMessageFilePath($category, $language): string
{
if ($category === 'yii') {
// Map Craft’s language IDs to Yii’s when necessary
$language = match ($language) {
'de-CH' => 'de',
'fr-CA' => 'fr',
'nb', 'nn' => 'nb-NO',
default => $language,
};
}
return parent::getMessageFilePath($category, $language);
}
/**
* @inheritdoc
*/
protected function loadMessagesFromFile($messageFile): ?array
{
$messages = parent::loadMessagesFromFile($messageFile);
if ($messages === null && !App::devMode()) {
// avoid logs about missing translation files
$messages = [];
}
return $messages;
}
/**
* Returns the override methods defined in the site’s translations folder.
*
* @param string $category
* @param string $language
* @return array
* @throws Exception
*/
private function _loadOverrideMessages(string $category, string $language): array
{
// Save the current base path to restore later.
$oldBasePath = $this->basePath;
$newBasePath = Craft::getAlias('@translations');
if ($newBasePath === false) {
throw new Exception('There was a problem getting the translations path.');
}
$this->basePath = $newBasePath;
// Code adapted from yii\i18n\PhpMessageSource, minus the error logging
$messageFile = $this->getMessageFilePath($category, $language);
$messages = $this->loadMessagesFromFile($messageFile);
$fallbackLanguage = substr($language, 0, 2);
if ($fallbackLanguage !== $language) {
$fallbackMessageFile = $this->getMessageFilePath($category, $fallbackLanguage);
$fallbackMessages = $this->loadMessagesFromFile($fallbackMessageFile);
if (empty($messages)) {
$messages = $fallbackMessages;
} elseif (!empty($fallbackMessages)) {
foreach ($fallbackMessages as $key => $value) {
if (!empty($value) && empty($messages[$key])) {
$messages[$key] = $value;
}
}
}
}
$this->basePath = $oldBasePath;
return (array)$messages;
}
}