Question

我已经为Laravel提供了一些博客CRUD教程，我正在尝试通过为自己制作食谱网站来推进下一步。

这个想法是用户创建一个新配方，其中包含title，description，portions，user_id到recipes表。

我已经完成了这项工作，并且已成功保存到数据库，以及关联的tags到recipe_tags表。

我目前已将storeController重定向到recipe.show视图，该视图工作正常，但我尝试将其重定向到steps.create视图，并从数据库中提取标题和描述，以及id表中的关联recipes。

以下是我的商店@ recipesController：

public function store(Request $request)
{
    $this->validate($request, [
      'name' => 'required|max:255',
      'description' => 'required',
      'portions' => 'required'
    ]);

    $recipe = new Recipe;

    $recipe->name = $request->name;
    $recipe->description = $request->description;
    $recipe->portions = $request->portions;
    $recipe->user_id = auth()->user()->id;

    $recipe->save();

    if(isset($request->tags)){
      $recipe->tags()->sync($request->tags, true);
    } else {
      $post->tags()->sync([]);
    }

    return redirect()->route('steps.create', ['id' => $recipe->id]);
}

这是我的 create @ stepsController

public function create($id)
{
  $recipe = Recipe::find($id);
  return view('steps.create')->withRecipe($recipe);
}

但是它返回了以下内容：

Type error: Too few arguments to function App\Http\Controllers\StepsController::create(), 0 passed and exactly 1 expected

我有点超出我的深度。我认为这可能是我的路线问题（两者都是Route::resource(...)）

我的后备选项是使用Ajax在同一页面上将配方和步骤写入数据库，但我宁愿学习如何按照我原定的方式进行操作。

（编辑：如果有任何重要意义，它会重定向到以下网址。）

http://127.0.0.1:8000/steps/create?id=3

路线列表：

    $ php artisan route:list
    +--------+-----------+------------------------+------------------+------------------------------------------------------------------------+--------------+
    | Domain | Method    | URI                    | Name             | Action                                                                 | Middleware   |
    +--------+-----------+------------------------+------------------+------------------------------------------------------------------------+--------------+
    |        | GET|HEAD  | /                      |                  | App\Http\Controllers\PagesController@index                             | web          |
    |        | GET|HEAD  | api/user               |                  | Closure                                                                | api,auth:api |
    |        | GET|HEAD  | home                   | home             | App\Http\Controllers\HomeController@index                              | web,auth     |
    |        | GET|HEAD  | login                  | login            | App\Http\Controllers\Auth\LoginController@showLoginForm                | web,guest    |
    |        | POST      | login                  |                  | App\Http\Controllers\Auth\LoginController@login                        | web,guest    |
    |        | POST      | logout                 | logout           | App\Http\Controllers\Auth\LoginController@logout                       | web          |
    |        | POST      | password/email         | password.email   | App\Http\Controllers\Auth\ForgotPasswordController@sendResetLinkEmail  | web,guest    |
    |        | GET|HEAD  | password/reset         | password.request | App\Http\Controllers\Auth\ForgotPasswordController@showLinkRequestForm | web,guest    |
    |        | POST      | password/reset         |                  | App\Http\Controllers\Auth\ResetPasswordController@reset                | web,guest    |
    |        | GET|HEAD  | password/reset/{token} | password.reset   | App\Http\Controllers\Auth\ResetPasswordController@showResetForm        | web,guest    |
    |        | GET|HEAD  | recipes                | recipes.index    | App\Http\Controllers\RecipesController@index                           | web,auth     |
    |        | POST      | recipes                | recipes.store    | App\Http\Controllers\RecipesController@store                           | web,auth     |
    |        | GET|HEAD  | recipes/create         | recipes.create   | App\Http\Controllers\RecipesController@create                          | web,auth     |
    |        | DELETE    | recipes/{recipe}       | recipes.destroy  | App\Http\Controllers\RecipesController@destroy                         | web,auth     |
    |        | PUT|PATCH | recipes/{recipe}       | recipes.update   | App\Http\Controllers\RecipesController@update                          | web,auth     |
    |        | GET|HEAD  | recipes/{recipe}       | recipes.show     | App\Http\Controllers\RecipesController@show                            | web,auth     |
    |        | GET|HEAD  | recipes/{recipe}/edit  | recipes.edit     | App\Http\Controllers\RecipesController@edit                            | web,auth     |
    |        | POST      | register               |                  | App\Http\Controllers\Auth\RegisterController@register                  | web,guest    |
    |        | GET|HEAD  | register               | register         | App\Http\Controllers\Auth\RegisterController@showRegistrationForm      | web,guest    |
    |        | GET|HEAD  | steps                  | steps.index      | App\Http\Controllers\StepsController@index                             | web,auth     |
    |        | POST      | steps                  | steps.store      | App\Http\Controllers\StepsController@store                             | web,auth     |
    |        | GET|HEAD  | steps/create           | steps.create     | App\Http\Controllers\StepsController@create                            | web,auth     |
    |        | GET|HEAD  | steps/{step}           | steps.show       | App\Http\Controllers\StepsController@show                              | web,auth     |
    |        | PUT|PATCH | steps/{step}           | steps.update     | App\Http\Controllers\StepsController@update                            | web,auth     |

Answer 1

重定向路由将'id'作为GET参数传递，因此您的控制器无法将GET参数理解为$和$ id变量，因此您可以通过在控制器上执行此操作来解决此问题：

public function create(Request $request)
{
    $recipe = Recipe::find($request->id);
    return view('steps.create')->withRecipe($recipe);
}

在Laravel中使用已创建的ID重定向

1 个答案: