Laravel hasone关系

Question

我正在尝试使用hasone关系，但得到空错误。下面是我的代码

用户模型：

  function profile()
{
    $this->hasOne('App\Profile');
}

个人资料模型：

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

注册控制器

 protected function create(array $data)
{
    $user =  User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => Hash::make($data['password']),
    ]);

    if($user) {

        $profile = new Profile();
        $profile->name = 'Fake Name';
        $profile->father = 'Fake Father';
        $user->profile()->save($profile);
    }

    return $user;

}

错误：在null上调用成员函数save（）

Answer 1

将User.php更改为

 public class EcommerceTest 
    {
     public static WebDriver driver;

          @Test

          public void addtoCartTest() throws InterruptedException
          {
              driver.get("https://rahulshettyacademy.com/seleniumPractise/");
              driver.manage().window().maximize();
              EkartPage1 oekart = new EkartPage1(driver);
              oekart.AddtoCart();

          }
          @BeforeTest
          public void beforeTest() {
              System.setProperty("webdriver.chrome.driver", "E:\\selenium\\chromedriver_win32\\chromedriver.exe");
              driver = new ChromeDriver();
              driver.manage().timeouts().implicitlyWait(30,TimeUnit.SECONDS);
          }

          @AfterTest
          public void afterTest() {
              //driver.close();
          }
    }

    /**/This my page object class**
    public class EkartPage1 
    {
        WebDriver driver;
        WebDriverWait wait;
        @FindBy(xpath = "//button[contains(text(),'ADDED')]")
        WebElement addedBtn;

        public EkartPage1(WebDriver driver)
        {
            wait = new WebDriverWait(driver, 30);
            PageFactory.initElements(driver, this);
            this.driver = driver;
        }
     **//This is my method to click Add to cart button**
        public void AddtoCart() throws InterruptedException /
        {
            String[] additems = {"Cucumber","Beans"};
          List<WebElement> list = driver.findElements(By.cssSelector("h4.product-name")); 

          for(int i=0;i<list.size();i++)
          {
              String[] productname = list.get(i).getText().split("-");
              String frmtdname = productname[0].trim();
              List itemsneeded = Arrays.asList(additems);

            if(itemsneeded.contains(frmtdname))
            {  

               List<WebElement> list2 =driver.findElements(By.xpath("//button[text() ='ADD TO CART']"));
               list2.get(i).click();
               System.out.println("One product added");

            }
          }

        }

您需要返回关系实例。