Laravel model::create() 不返回主键
我有一个以下身份验证表：
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
class CreateAuthTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('auth', function (Blueprint $table) {
$table->uuid('id')->primary();
$table->string('email', 255)->index()->unique();
$table->string('password', 96);
$table->timestamps();
});
DB::statement('ALTER TABLE auth ALTER COLUMN id SET DEFAULT uuid_generate_v4();');
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::dropIfExists('auth');
}
}
这是模型：
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Foundation\Auth\User as Authenticable;
use Illuminate\Support\Facades\Hash;
use Laravel\Passport\HasApiTokens;
class User extends Authenticable
{
use HasApiTokens;
protected $table = "auth";
protected $fillable = ["email", "password"];
public $incrementing = false;
protected $keyType = 'string';
protected $casts = [
'id' => 'string'
];
private $hashOptions = [
'memory' => 1024,
'time' => 2,
'threads' => 1
];
public function setPasswordAttribute($value)
{
$this->attributes['password'] = Hash::make($value, $this->hashOptions);
}
}
梦里花落09211回答
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慕工程0101907
只需确保强制转换为字符串且主键名称正确namespace App;use Illuminate\Database\Eloquent\Model;class User extends Model{ protected $casts = [ 'id' => 'string' ]; protected $primaryKey = "id";}如果你将 $incrementing 设置为 false，它会破坏它并始终返回 false，因为它告诉代码该 id 不是自动生成的，因此永远不会被获取。class User extends Model{ public $incrementing = false; // ...}$user = new User;$user->save();dd($user->id);// null还要确保在迁移中启用 uuid 扩展<?phpclass AddUuidExtensionToPostgre extends Migration{ public function up() { DB::statement('CREATE EXTENSION IF NOT EXISTS "uuid-ossp";'); } public function down() { DB::statement('DROP EXTENSION IF EXISTS "uuid-ossp";'); }}这是一个例子Schema::create('users', function (Blueprint $table) { $table->uuid('id'); $table->primary('id'); // ...});DB::statement('ALTER TABLE users ALTER COLUMN id SET DEFAULT uuid_generate_v4();');
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