从空值laravel 5.7创建默认对象

Question

我的更新用户管理表单中有错误，如果他有个人资料，我想更新与用户对应的个人资料。但它抛出了这个错误：

从空值创建默认对象

我在我的模型中设置了用户和配置文件Profile::where('id', $user->profile_id)->first();之间的关系，但是当我dd它总是为空时，即使有相应的配置文件。

user.php的

public function profile()

{

    return $this->hasOne('App\Profile', 'user_id', 'id');

}

Profile.php

public function user()

{
    return $this->belongsTo('App\User');

}

功能错误在

public function update(Request $request, User $user)
{
    if(\Auth::check()) {

        if(\Auth::user()->type == 'admin') {

            $validated = $request->validate([

                'name' => 'required',

                'email' => 'required|email',

                'password' => 'confirmed'
            ]);

            if(!empty($validated['password'])){

                if(!$user->profile){
                    //Has no profile
                    $user->name             = $validated['name'];
                    $user->email            = $validated['email'];
                    $user->password         = bcrypt($validated['password']);
                    $user->update();
                } else {
                    //Has profile
                    $profile                = Profile::where('id', $user->profile_id)->first();
                    $profile->username      = $validated['name'];
                    $profile->email         = $validated['email'];
                    $profile->update();

                    $user->name             = $validated['name'];
                    $user->email            = $validated['email'];
                    $user->password         = bcrypt($validated['password']);
                    $user->update();
                }

            } else {

                if(!$user->profile){
                    //Has no profile
                    $user->name             = $validated['name'];
                    $user->email            = $validated['email'];
                    $user->update();
                } else {
                    //Has profile
                    $profile                = Profile::where('id', $user->profile_id)->first();
                    $profile->username      = $validated['name'];
                    $profile->email         = $validated['email'];
                    $profile->update();

                    $user->name             = $validated['name'];
                    $user->email            = $validated['email'];
                    $user->update();
                }
            }
        }
    }
}

在这些线上$profile = Profile::where('id', $user->profile_id)->first();

Answer 1

由于您在user_id表中使用profiles作为外键，因此您可以将此视为您的声明：

Profile :: where（'user_id'，$ user-> id） - > first（）;

或者，通过使用以下关系：

$用户>概况;

Answer 2

您可以使用您的关系并将逻辑压缩为：

$user->name             = $validated['name'];
$user->email            = $validated['email'];

if(!empty($validated['password'])){

    $user->password   = bcrypt($validated['password']);

    $profile  = $user->profile;
    $profile->username      = $validated['name'];
    $profile->email         = $validated['email'];
    $profile->save();
}
$user->save();