Laravel 控制器更新方法不起作用

问题描述

我是 Laravel 的新手.

I am new in Laravel.

我通过作曲家php artisan generate:scaffold city的way/generator和它的索引页(创建和存储方法)制作了控制器、模型和视图，但我工作得很好不知道 update 方法有什么问题.

I made controller, Model and views by way/generator by composer php artisan generate:scaffold cities and Its index page (Create and store method) Working well but I don't know what is the problem with update method.

这是我的 CitiesController 方法(更新):

This is my CitiesController method(Update):

public function update($id)
{
    $city = City::findOrFail($id);

    $validator = Validator::make($data = Input::all(), City::$rules);

    if ($validator->fails())
    {
        return Redirect::back()->withErrors($validator)->withInput();
    }

    $city->update($data);
    return Redirect::route('admin.cities.index');
}

这是我的模型(城市):

class City extends Eloquent {
   protected $primaryKey='city_id';

    public static $rules = [
         'name'     => 'required',
         'image'     => 'mimes:jpeg',
         'parent_id' => 'required',
         'name'      => 'required',
         'english_name'=>'unique:cities,english_name|required'

    ];
    protected $fillable = ['name', 'parent_id', 'english_name','population','phone_prefix','image'];
}

这是我的观点(编辑):

<ul>
    {{ Form::model($city,array('route'=>array('admin.cities.update',$city->id),'method'=>'PUT','files'=>true)) }}
    <!--Here I included my form-->
    @include('admin.forms._partial.formcity')
    <li>
        {{ Form::submit('submit') }}
    </li>
    {{ Form::close() }}
</ul>

这是我的路线:

Route::group(array('prefix'=>'admin','before'=>'Auth'),function(){
    Route::resource('cities', 'CitiesController');
});

当我点击提交按钮 Laravel 抛出这个错误:

When I click on submit button Laravel throwout this error:

SymfonyComponentHttpKernelExceptionMethodNotAllowedHttpException

Symfony Component HttpKernel Exception MethodNotAllowedHttpException

注意:我的观点很有效.我认为问题出在控制器方法上，该控制器的其他方法如 create 和 store 也可以正常工作.

note:My view works well. I think the problem is from controller method, and other methods of this controller like create and store works well too.

推荐答案

在你的模型中你有 protected $primaryKey='city_id'; 但在你看来你有:

In your model you have protected $primaryKey='city_id'; but in your view you have:

{{ Form::model($city,array('route'=>array('admin.cities.update',$city->id),'method'=>'PUT','files'=>true)) }}

我的意思是 $city->id 应该是 $city->city_id

I mean $city->id should be $city->city_id

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