Initial commit，修正

vendor/yiisoft/yii2/i18n/migrations/schema-mysql.sql

@@ -0,0 +1,33 @@
+/**
+ * Database schema required by \yii\i18n\DbMessageSource.
+ *
+ * @author Dmitry Naumenko <d.naumenko.a@gmail.com>
+ * @link https://www.yiiframework.com/
+ * @copyright 2008 Yii Software LLC
+ * @license https://www.yiiframework.com/license/
+ * @since 2.0.7
+ */
+
+
+drop table if exists `source_message`;
+drop table if exists `message`;
+
+CREATE TABLE `source_message`
+(
+   `id`          integer NOT NULL AUTO_INCREMENT PRIMARY KEY,
+   `category`    varchar(255),
+   `message`     text
+);
+
+CREATE TABLE `message`
+(
+   `id`          integer NOT NULL,
+   `language`    varchar(16) NOT NULL,
+   `translation` text
+);
+
+ALTER TABLE `message` ADD CONSTRAINT `pk_message_id_language` PRIMARY KEY (`id`, `language`);
+ALTER TABLE `message` ADD CONSTRAINT `fk_message_source_message` FOREIGN KEY (`id`) REFERENCES `source_message` (`id`) ON UPDATE RESTRICT ON DELETE CASCADE;
+
+CREATE INDEX idx_message_language ON message (language);
+CREATE INDEX idx_source_message_category ON source_message (category);