我正在尝试制作以下教程：https://medium.com/on-coding/e8d93c9ce0e2
说到跑步：
php artisan migrate
我收到以下错误：
[Exception]
SQLSTATE[42S02]: Base table or view not found: 1146 Table 'laravel.user' doesn't
exist (SQL: alter table `user` add `id` int unsigned not null auto_increment prim
ary key, add `username` varchar(255) null, add `password` varchar(255) null, add
`email` varchar(255) null, add `created_at` datetime null, add `updated_at` datet
ime null) (Bindings: array (
))
数据库连接正常，迁移表已成功创建。正如您在错误消息中看到的那样，数据库名称已更改。
对我来说很奇怪，是它试图改变表 - 它不存在 - 而不是创建它。
以下是我的其他文件，如UserModel，Seeder，Migtation和DB Config。
CreateUserTable：
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUserTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::table('user', function(Blueprint $table)
{
$table->increments("id");
$table
->string("username")
->nullable()
->default(null);
$table
->string("password")
->nullable()
->default(null);
$table
->string("email")
->nullable()
->default(null);
$table
->dateTime("created_at")
->nullable()
->default(null);
$table
->dateTime("updated_at")
->nullable()
->default(null);
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::table('user', function(Blueprint $table)
{
Schema::dropIfExists("user");
});
}
}
的usermodel：
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends Eloquent implements UserInterface, RemindableInterface {
/**
* The database table used by the model.
*
* @var string
*/
protected $table = 'user';
/**
* The attributes excluded from the model's JSON form.
*
* @var array
*/
protected $hidden = array('password');
/**
* Get the unique identifier for the user.
*
* @return mixed
*/
public function getAuthIdentifier()
{
return $this->getKey();
}
/**
* Get the password for the user.
*
* @return string
*/
public function getAuthPassword()
{
return $this->password;
}
/**
* Get the e-mail address where password reminders are sent.
*
* @return string
*/
public function getReminderEmail()
{
return $this->email;
}
}
UserSeeder：
class UserSeeder extends DatabaseSeeder
{
public function run()
{
$users = [
[
"username" => "ihkawiss",
"password" => Hash::make("123456"),
"email" => "ihkawiss@domain.com"
]
];
foreach ($users as $user)
{
User::create($user);
}
}
}
DatabaseSeeder：
class DatabaseSeeder extends Seeder {
/**
* Run the database seeds.
*
* @return void
*/
public function run()
{
Eloquent::unguard();
$this->call('UserSeeder');
}
}
数据库配置：
return array(
/*
|--------------------------------------------------------------------------
| PDO Fetch Style
|--------------------------------------------------------------------------
|
| By default, database results will be returned as instances of the PHP
| stdClass object; however, you may desire to retrieve records in an
| array format for simplicity. Here you can tweak the fetch style.
|
*/
'fetch' => PDO::FETCH_CLASS,
/*
|--------------------------------------------------------------------------
| Default Database Connection Name
|--------------------------------------------------------------------------
|
| Here you may specify which of the database connections below you wish
| to use as your default connection for all database work. Of course
| you may use many connections at once using the Database library.
|
*/
'default' => 'mysql',
/*
|--------------------------------------------------------------------------
| Database Connections
|--------------------------------------------------------------------------
|
| Here are each of the database connections setup for your application.
| Of course, examples of configuring each database platform that is
| supported by Laravel is shown below to make development simple.
|
|
| All database work in Laravel is done through the PHP PDO facilities
| so make sure you have the driver for your particular database of
| choice installed on your machine before you begin development.
|
*/
'connections' => array(
'sqlite' => array(
'driver' => 'sqlite',
'database' => __DIR__.'/../database/production.sqlite',
'prefix' => '',
),
'mysql' => array(
'driver' => 'mysql',
'host' => 'localhost',
'database' => 'laravel',
'username' => 'root',
'password' => '',
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
),
'pgsql' => array(
'driver' => 'pgsql',
'host' => 'localhost',
'database' => 'database',
'username' => 'root',
'password' => '',
'charset' => 'utf8',
'prefix' => '',
'schema' => 'public',
),
'sqlsrv' => array(
'driver' => 'sqlsrv',
'host' => 'localhost',
'database' => 'database',
'username' => 'root',
'password' => '',
'prefix' => '',
),
),
/*
|--------------------------------------------------------------------------
| Migration Repository Table
|--------------------------------------------------------------------------
|
| This table keeps track of all the migrations that have already run for
| your application. Using this information, we can determine which of
| the migrations on disk have not actually be run in the databases.
|
*/
'migrations' => 'migrations',
/*
|--------------------------------------------------------------------------
| Redis Databases
|--------------------------------------------------------------------------
|
| Redis is an open source, fast, and advanced key-value store that also
| provides a richer set of commands than a typical key-value systems
| such as APC or Memcached. Laravel makes it easy to dig right in.
|
*/
'redis' => array(
'cluster' => true,
'default' => array(
'host' => '127.0.0.1',
'port' => 6379,
'database' => 0,
),
),
);
希望有人能在这里给我一个提示。
最好的问候ihkawiss
答案 0 :(得分：92)
在CreateUserTable迁移文件中，您必须使用Schema::table而不是Schema::create。
Schema::table用于更改现有表格，Schema::create用于创建新表格。
查看文档：
因此，您的用户迁移将是：
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUserTable extends Migration {
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('user', function(Blueprint $table) {
{
$table->increments("id",true);
$table->string("username")->nullable()->default(null);
$table->string("password")->nullable()->default(null);
$table->string("email")->nullable()->default(null);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists("user");
}
}
答案 1 :(得分：2)
这可能是因为用于创建迁移php artisan migrate ...的语法不正确。在这种情况下，--create将无法正常使用，您会看到Schema::table而不是预期的Schema::create。当像这样生成迁移文件时，您可能还会遗漏一些创建迁移的其他标记，例如$table->increments('id');和$table->timestamps();
例如，这两个命令不会像您期望的那样创建创建表迁移文件：
php artisan migrate:make create_tasks_table --table="tasks" --create
php artisan migrate:make create_tasks2_table --table=tasks2 --create
但是，该命令不会因错误而失败。相反，laravel将使用Schema::table
在创建新的迁移文件时，我总是使用完整的语法：
php artisan migrate:make create_tasks_table --table=tasks --create=tasks
避免任何类似的问题。
答案 2 :(得分：1)
有时它是由自定义工匠命令引起的。其中一些命令可能会启动几个类。因为我们做了回滚，所以无法找到表格。检查自定义工匠命令。您可以注释掉导致触发的行。运行php artisan migrate命令，然后取消注释。这就是我必须要做的事情。