db->driverName === 'mysql') { // http://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci $tableOptions = 'CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE=InnoDB'; } $this->createTable('{{%currency}}', [ 'id_currency' => $this->primaryKey(), 'currency' => $this->string(10)->notNull(), 'name' => $this->string(32)->notNull(), 'rate' => $this->integer(11) , 'created_at' => $this->timestamp()->notNull(), 'updated_at' => $this->timestamp()->notNull(), ], $tableOptions); } public function down() { echo "m150930_140728_add__table__currency cannot be reverted.\n"; return false; } /* // Use safeUp/safeDown to run migration code within a transaction public function safeUp() { } public function safeDown() { } */ }