使用 Auth 类时,通过用户模型的关系出现问题。我认为这种关系应该是$this->hasMany('App\Product'),并且它还将通过此方法将新保存的id返回给变量。当我尝试使用Auth::user()->products()->save($product)时,我收到以下错误。我正在学习Laravel 5.2,我不知道这段代码应该如何工作,可以给我一些帮助
FatalErrorException in ProductsController.php line 32:
Call to a member function products() on a non-object
用户型号:
<?php namespace App;
use IlluminateFoundationAuthUser as Authenticatable;
use ZizacoEntrustTraitsEntrustUserTrait;
use AppProduct;
class User extends Authenticatable
{
use EntrustUserTrait;
protected $fillable = [
'name', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
public function products() {
return $this->hasMany('AppProduct');
}
}
产品型号:
<?php
namespace App;
use IlluminateDatabaseEloquentModel;
class Product extends Model
{
protected $table = "products";
protected $fillable = ['category_id', 'user_id', 'supplier_id', 'title', 'price'];
public function user() {
return $this->belongsTo('AppUser');
}
}
产品控制器:
class ProductsController extends Controller
{
public function create() {
$categories = Category::lists('name', 'id')->toArray();
$suppliers = Supplier::lists('company_name', 'id')->toArray();
return view('products.create', compact('suppliers', 'categories'));
}
public function store() {
$product = new Product(Request::all());
$id = Auth::user()->products()->save($product);
return redirect('admin/products');
}
}
我认为用户没有登录,这就是为什么Auth::user()为空
Auth::user()
仅在用户登录时才返回User
对象。您应该添加一些检查代码,例如:
if (! Auth::check()) {
// redirect to the login page, etc.
}
以防止它为空。