在Laravel 5.4上使用php artisan make:auth迁移错误
[Illuminate\Database\QueryException] SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: alter tabl e users add unique users_email_unique(email)) [PDOException] SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes
当前回答
与其设置长度限制，我建议以下方法，这对我来说很有效。
内部:
配置/ database.php
将这一行替换为mysql:
'engine' => 'InnoDB ROW_FORMAT=DYNAMIC',
:
'engine' => null,
其他回答
腔:
添加到。env文件
DB_ENGINE=InnoDB
我只是把这个答案加在这里，因为这对我来说是最快的解决方法。只需要将默认的数据库引擎设置为'InnoDB'
/ config / database.php
'mysql' => [
...,
...,
'engine' => 'InnoDB',
]
然后运行PHP artisan config:cache来清除和刷新配置缓存
编辑: 这里找到的答案可能解释了这一事件背后的原因
据官方Laravel 7日报道。X文档，可以很容易地解决这个问题。
更新你的/app/Providers/AppServiceProvider.php包含:
use Illuminate\Support\Facades\Schema;
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
Schema::defaultStringLength(191);
}
或者，您可以为您的数据库启用innodb_large_prefix选项。有关如何正确启用此选项的说明，请参阅数据库的文档。
如前所述，我们在App/Providers中添加到AppServiceProvider.php
use Illuminate\Support\Facades\Schema; // add this
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
Schema::defaultStringLength(191); // also this line
}
你可以在下面的链接中看到更多细节(搜索“索引长度& MySQL / MariaDB”) https://laravel.com/docs/5.5/migrations
BUT WELL THAT's not what I published all about! the thing is even when doing the above you will likely to get another error (that's when you run php artisan migrate command and because of the problem of the length, the operation will likely stuck in the middle. solution is below, and the user table is likely created without the rest or not totally correctly) we need to roll back. the default roll back will not work. because the operation of migration didn't like finish. you need to delete the new created tables in the database manually.
我们可以这样做使用修补器如下所示:
L:\todos> php artisan tinker
Psy Shell v0.8.15 (PHP 7.1.10 — cli) by Justin Hileman
>>> Schema::drop('users')
=> null
我自己有一个问题与用户表。
之后你就可以开始了
PHP artisan migrate:回滚
PHP工匠迁移
我刚刚修改了users和password_reset迁移文件中的以下行。
旧:$table->string('email')->unique();
新:$table->string('email'， 128)->unique();
