开发笔记:Laravel一对多关系问题与学分名称

我在laravel中定义了一个简单的一对多关系。用户拥有许多积分，而积分属于用户。

用户模型

/**
* Relationship to the users credits
*
* @return IlluminateDatabaseEloquentRelationsHasMany
*/
public function credits()
{
return $this->hasMany(Credit::class);
}


信用模型

/**
* Relationship to the user that this credit belongs to
*
* @return IlluminateDatabaseEloquentRelationsBelongsTo
*/
public function user()
{
return $this->belongsTo(User::class);
}


调节器

/**
* Return a user
*
* @param $user_id
*
* @return User
*/
public function getUser($user_id)
{
$user = $this->user->findOrFail($user_id);
// Dumping and Dieing works fine, but when i return
// the User instance i get an error.
// dd($user->toArray());
return $user;
}


我得到的错误：

“error”：0，“message”：“类Illuminate Database Eloquent Collection的对象无法转换为int”