laravel 传递给控制器的参数 1 必须是 Illuminate\Http\Request?
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Argument 1 passed to controller must be an instance of Illuminate\Http\Request?
提问by austin43
I am pretty new to laravel, and have searched everywhere but could not fix this error:
我对 Laravel 还很陌生，到处搜索，但无法修复此错误：
Argument 1 passed to InsertController::insert() must be an instance of Illuminate\Http\Request, none given
传递给 InsertController::insert() 的参数 1 必须是 Illuminate\Http\Request 的实例，没有给出
I am trying to validate my input by passing in the Request method so I don't have to re-write a new validate method for every form, but it seems to always give me this error.
我试图通过传入 Request 方法来验证我的输入，因此我不必为每个表单重新编写新的验证方法，但它似乎总是给我这个错误。
<?php
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
class InsertController extends Controller {
public function insert(Request $request) {
$username = Input::get('username');
$pw = Hash::make(Input::get('pw'));
$email = Input::get('email');
$this->validate($request, ['name' => 'required|unique:users',
'password' => 'required|min:8|max:255',
'email' => 'required|email|unique:users']);
if(!$validator->fails()) {
$user = DB::table('users')->insert(
['email' => $email, 'password' => $pw, 'name' => $username]);
}
}
}
Here is the route I'm calling it with as well.
这也是我调用它的路线。
Route::post('users', ['uses' => 'InsertController@insert', 'before' => 'csrf'], function()
{
$users = User::all(); //call the User model for all data in users table
return View::make('users')->with('users', $users);
});
回答by dschniepp
The reason why it is not working is because of the given code relays on the injection of Request-Object, which was introduced with Laravel 5but the installed framework version is 4.2.17.
它不工作的原因是因为给定的代码中继了Request-Object的注入，它是在Laravel 5中引入的，但安装的框架版本是4.2.17。
To solve the issue you can remove the Request-Object from the method signature or update Laravel to 5.
要解决此问题，您可以从方法签名中删除Request-Object 或将 Laravel 更新为 5。
