1、i18n 应用组件的配置代码如下:
'components' => [
'i18n' => [
'translations' => [
'model/*' => [
'class' => 'yii/i18n/PhpMessageSource',
'forceTranslation' => true,
'basePath' => '@common/messages',
],
'*' => [
'class' => 'yii/i18n/PhpMessageSource',
'forceTranslation' => true,
'basePath' => '@app/messages',
'fileMap' => [
'app' => 'app.php',
'error' => 'error.php',
'success' => 'success.php',
],
],
],
],
],
2、在 Postman 中请求接口,Headers 中,Accept-Language:zh-CN,当目标语言为简体中文,文件映射的类别名为:success 时,被映射到 PHP 文件 @app/messages/zh-CN/success.php,如图1
return ['code' => 10000, 'message' => Yii::t('success', '127016'), 'data' => ['items' => array_values($models)]];
3、在 Postman 中请求接口,Headers 中,Accept-Language:zh-CN,当目标语言为简体中文,文件映射的类别名为:app 时,被映射到 PHP 文件 @app/messages/zh-CN/app.php,如图2
$planLog->opinion = Yii::t('app', Yii::t('app', Yii::t('app', 302016), ['accepted_group_name' => $acceptedGroupName, 'accepted_user_nick' => $identity->user_nick]));
4、在 Postman 中请求接口,Headers 中,Accept-Language:en-US,当目标语言为美国英语,文件映射的类别名为:success 时,被映射到 PHP 文件 @app/messages/en-US/success.php,如图3
5、在 Postman 中请求接口,Headers 中,Accept-Language:en-US,当目标语言为美国英语,文件映射的类别名为:app 时,未被映射到 PHP 文件 @app/messages/en-US/app.php,要翻译的信息在语言文件中未找到,会返回原始未翻译的信息,即:302011。如图4
6、编辑 E:/wwwroot/pcs-api/vendor/yiisoft/yii2/i18n/MessageSource.php,当目标语言为简体中文,响应:11, 当目标语言为美国英语,响应:21,即当目标语言为美国英语,文件映射的类别名为:app 时,跳过了翻译指定的消息的步骤。如图5、图6
Yii::t('app', '302011');
exit;
public function translate($category, $message, $language)
{
if ($this->forceTranslation || $language !== $this->sourceLanguage) {
echo 1;
exit;
return $this->translateMessage($category, $message, $language);
}
echo 2;
exit;
return false;
}
7、当目标语言为美国英语,文件映射的类别名为:app 时,$this->forceTranslation 的值为 false,如图7
public function translate($category, $message, $language)
{
var_dump($this->forceTranslation);
exit;
if ($this->forceTranslation || $language !== $this->sourceLanguage) {
echo 1;
exit;
return $this->translateMessage($category, $message, $language);
}
echo 2;
exit;
return false;
}
8、当目标语言为美国英语,文件映射的类别名为:success 时,$this->forceTranslation 的值为 true,如图8
Yii::t('success', '302011');
exit;
9、查看 /vendor/yiisoft/yii2/i18n/I18N.php,文件映射的类别名:yii、app,始终定义类别 yii 和 app 。前者指的是 Yii 核心中使用的消息框架代码,而后者是指自定义应用程序代码的默认消息类别。其判断类别:app 是否存在,如果不存在,则覆盖,但是,其判断的层级仅为第一级,没有深入至更深的层级,因此,自定义的类别:app 会被覆盖,如图9
/**
* @var array list of [[MessageSource]] configurations or objects. The array keys are message
* category patterns, and the array values are the corresponding [[MessageSource]] objects or the configurations
* for creating the [[MessageSource]] objects.
*
* The message category patterns can contain the wildcard `*` at the end to match multiple categories with the same prefix.
* For example, `app/*` matches both `app/cat1` and `app/cat2`.
*
* The `*` category pattern will match all categories that do not match any other category patterns.
*
* This property may be modified on the fly by extensions who want to have their own message sources
* registered under their own namespaces.
*
* The category `yii` and `app` are always defined. The former refers to the messages used in the Yii core
* framework code, while the latter refers to the default message category for custom application code.
* By default, both of these categories use [[PhpMessageSource]] and the corresponding message files are
* stored under `@yii/messages` and `@app/messages`, respectively.
*
* You may override the configuration of both categories.
*/
public $translations;
/**
* Initializes the component by configuring the default message categories.
*/
public function init()
{
parent::init();
if (!isset($this->translations['yii']) && !isset($this->translations['yii*'])) {
$this->translations['yii'] = [
'class' => 'yii/i18n/PhpMessageSource',
'sourceLanguage' => 'en-US',
'basePath' => '@yii/messages',
];
}
if (!isset($this->translations['app']) && !isset($this->translations['app*'])) {
$this->translations['app'] = [
'class' => 'yii/i18n/PhpMessageSource',
'sourceLanguage' => Yii::$app->sourceLanguage,
'basePath' => '@app/messages',
];
}
}
10、解决方案如下,文件映射的类别名:app 调整为 application,被映射到 PHP 文件 application.php,调整 i18n 应用组件的配置代码如下:
'components' => [
'i18n' => [
'translations' => [
'model/*' => [
'class' => 'yii/i18n/PhpMessageSource',
'forceTranslation' => true,
'basePath' => '@common/messages',
],
'*' => [
'class' => 'yii/i18n/PhpMessageSource',
'forceTranslation' => true,
'basePath' => '@app/messages',
'fileMap' => [
'application' => 'application.php',
'error' => 'error.php',
'success' => 'success.php',
],
],
],
],
],
11、重命名文件 /common/messages/en-US/app.php 为 /common/messages/en-US/application.php,重命名文件 /common/messages/zh-CN/app.php 为 /common/messages/zh-CN/application.php,重命名文件 /api/messages/en-US/app.php 为 /api/messages/en-US/application.php,重命名文件 /api/messages/zh-CN/app.php 为 /api/messages/zh-CN/application.php。其他应用目录下皆如此操作。将 Yii::t(‘app’, 批量替换为:Yii::t(‘application’, 。如图10
重命名文件 /common/messages/en-US/app.php 为 /common/messages/en-US/application.php,重命名文件 /common/messages/zh-CN/app.php 为 /common/messages/zh-CN/application.php,重命名文件 /api/messages/en-US/app.php 为 /api/messages/en-US/application.php,重命名文件 /api/messages/zh-CN/app.php 为 /api/messages/zh-CN/application.php。其他应用目录下皆如此操作。将 Yii::t(‘app’, 批量替换为:Yii::t(‘application’,
12、当目标语言为美国英语,文件映射的类别名为:application 时,已被映射到 PHP 文件 @app/messages/en-US/application.php,如图11
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/tech/pnotes/250467.html