传递给 HasOneOrMany::save() 的 Laravel 参数 1 必须是给定的模型数组的实例
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Laravel Argument 1 passed to HasOneOrMany::save() must be an instance of Model array given
提问by David
I'm new at Laraveland I have a problem when I try to save array of data to database. Here's the error I get
我是Laravel 的新手，当我尝试将数据数组保存到数据库时遇到问题。这是我得到的错误
Argument 1 passed to Illuminate\Database\Eloquent\Relations\HasOneOrMany::save() must be an instance of Illuminate\Database\Eloquent\Model, array given, called in S:\Documents\samdyk\vendor\laravel\framework\src\Illuminate\Database\Eloquent\Relations\HasOneOrMany.php on line 267 and defined
传递给 Illuminate\Database\Eloquent\Relations\HasOneOrMany::save() 的参数 1 必须是 Illuminate\Database\Eloquent\Model 的实例，给定数组，在 S:\Documents\samdyk\vendor\laravel\framework\src 中调用\Illuminate\Database\Eloquent\Relations\HasOneOrMany.php 在第 267 行并定义
So here's my code
所以这是我的代码
class Skill extends Model
{
protected $fillable = ['skill_title', 'knowledge_level'];
}
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
public function skills() {
return $this->hasMany(Skill::class);
}
}
And here's the controller function
这是控制器功能
public function editMyProfile(Request $request) {
$user = Auth::user();
dump($request->get('skills'));
// dump($request->get('skills')[0]);
dump($user->skills()->saveMany($request->get('skills')));
return 1;
}
So here's $request->get('skills')data
所以这里的$request->get('skills')数据
array:5 [
0 => array:2 [
"skill_title" => "fghjghj"
"knowledge_level" => "20"
]
1 => array:2 [
"skill_title" => "gjghjhgj"
"knowledge_level" => "50"
]
2 => array:2 [
"skill_title" => "ghjhgjgfjh"
"knowledge_level" => "80"
]
3 => array:2 [
"skill_title" => "hjkhgkkkhgjkjhkhjgk"
"knowledge_level" => "53"
]
4 => array:2 [
"skill_title" => "jghjhgjhgj"
"knowledge_level" => "57"
]
]
So as you can see I try to save an array (that's obvious). However even on laravel documentation I see this $post = App\Post::find(1);
如您所见，我尝试保存一个数组（这很明显）。然而，即使在 Laravel 文档中，我也看到了这个 $post = App\Post::find(1);
$post->comments()->saveMany([
new App\Comment(['message' => 'A new comment.']),
new App\Comment(['message' => 'Another comment.']),
]);
So why my code is wrong?
那么为什么我的代码是错误的呢？
回答by Alexey Mezenin
You need to pass an array of Skillobjects to the saveMany()method:
您需要将一组Skill对象传递给该saveMany()方法：
$skillModels = [];
foreach ($request->skills as $skill) {
$skillsModels[] = new Skill($skill);
}
$user->skills()->saveMany($skillModels);
And you're passing a simple array.
你正在传递一个简单的数组。
回答by Elbo S.P.
Just try createMany instead :)
只需尝试 createMany :)
$post->comments()->createMany([
['message' => 'A new comment.'],
['message' => 'Another comment.'],
]);
See the doc: https://laravel.com/docs/7.x/eloquent-relationships#the-create-method
请参阅文档：https: //laravel.com/docs/7.x/eloquent-relationships#the-create-method
