public function run()
{
    DB::statement('SET FOREIGN_KEY_CHECKS=0;');

    $this->call('PrimaryTableOneSeeder');
    $this->command->info('The first primary table has been seeded!');

    $this->call('PrimaryTableTwoSeeder');
    $this->command->info('The second primary table has been seeded!');

    $this->call('PivotTableSeeder');
    $this->command->info('The pivot table has been seeded!');

    DB::statement('SET FOREIGN_KEY_CHECKS=1;');
}

你会发现我在运行所有播种之前和之后禁用外键约束.这可能是不好的做法,但这是我可以使用truncate函数重新设置每个表的id计数的唯一方法.如果您遵循inserting related models的指南,这种做法可能是不必要的.

class PrimaryTableOneSeeder extends Seeder {

public function run()
{
    DB::table('primaryone')->truncate();
    Primaryone::create(array(
        'field' => 'value','created_at' => new DateTime,'updated_at' => new DateTime
    ));
}

要在我的示例中使用mass assignment,并且作为最新版本的文档,您需要为模型指定一些保护的或可填充的列.为此,只需将属性添加到您的模型中,如下所示：

class Primaryone extends Eloquent {

protected $guarded = array('id');