Laravel

Question

1- 用户table,使id uuid类型.

没问题

php artisan migrate:refresh

但是这个错误

php artisan db:seed

错误：("SQLSTATE[HY000]: General error: 1364 Field 'id' doesn't have a default value")

2-还有公司希望随机分发给用户。在用户table中，uuid类型会被保存在user_id列。

从现在开始谢谢你...

用户模型：

use UsesUuid;

protected $fillable = ['name', 'email', 'password', 'role', 'slug',];

protected $hidden = ['password', 'remember_token',];

protected $casts = ['email_verified_at' => 'datetime',];

public function companies()
{
    return $this->hasMany('App\Company', 'user_id', 'id');
}

UsesUuid 特征：

protected static function boot()
{
    parent::boot();

    static::creating(function ($post) {
        $post->{$post->getKeyName()} = (string)Str::uuid();
    });
}

public $incrementing = false;

public function getKeyType()
{
    return 'string';
}

用户迁移：

Schema::create('users', function (Blueprint $table) {
        $table->uuid('id')->primary()->unique();
        $table->string('name',100);
        $table->string('email',100);
        $table->timestamp('email_verified_at')->nullable();
        $table->string('password',100);
        $table->string('role',20)->nullable();
        $table->string('slug',100);
        $table->rememberToken();
        $table->timestamps();
        $table->softDeletes();
    });

公司迁移：

Schema::create('companies', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('user_id',36);
$table->string('name', 100);

$table->timestamps();
$table->softDeletes();

$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

});

用户工厂：

$name = $faker->name;
return [
    'id' => Str::uuid(),
    'name' => $name,
    'email' => $faker->unique()->safeEmail,
    'email_verified_at' => now(),
    'password' => Hash::make(123), // password
    'remember_token' => Str::random(10),
    'role' => 'user',
    'slug' => Str::slug($name),
];

公司工厂：

$name = $faker->company;
return [
    'user_id' => Str::uuid(),
    'name' => $name,
];

数据库播种器：

factory(App\User::class, 5)->create();
factory(App\Company::class, 1500)->create();

Answer 1

像这样修改你的特质：

static::creating(function ($post) {
    empty($post->{$post->getKeyName()}) && $post->{$post->getKeyName()} = (string)Str::uuid();
});

没有必要让UUID唯一，在您的迁移中，因为它已经存在！

$table->uuid('id');
$table->primary('id');

并且工厂必须自己创建主 UUID，不要自己添加

我认为有了这些变化，播种机必须运行成功

Laravel - 用户 table，将 id 设置为 uuid 类型

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laravel-5

laravel-5.8