Laravel 4, ->withInput(); = 未定义的偏移量：0
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/22027830/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Laravel 4, ->withInput(); = Undefined offset: 0
提问by Rohan Peters
I have had a lengthy search both here and the Laravel forums, but i can't find an answer to this problem. ->withInput()coughs up an Undefined offset: 0.
我在这里和 Laravel 论坛都进行了长时间的搜索，但我找不到这个问题的答案。->withInput()咳了一声Undefined offset: 0。
For Context:
对于上下文：
Controller
控制器
public function getJobs()
{
$position_options = DB::table('jposition')->lists('friendly','id');
$category_options = DB::table('jcategory')->lists('friendly','id');
$location_options = DB::table('jlocation')->lists('friendly','id');
$result = $query->get();
return View::make('jobsearch.search', array('position_options' => $position_options, 'category_options' => $category_options, 'location_options' => $location_options))->withInput();
}
View
看法
<form action="{{ action('JobsearchController@getJobs') }}" method="post">
<div class="row">
<div class="large-8 columns">
<input type="text" name="realm" placeholder="Keywords/Skills" />
</div>
<div class="large-4 columns">
{{ Form::select('category', $category_options , Input::old('category')) }}
</div>
</div>
<div class="row">
<div class="large-4 columns">
{{ Form::select('location', $location_options , Input::old('location')) }}
</div>
<div class="large-4 columns">
{{ Form::select('type', $position_options , Input::old('type')) }}
</div>
<div class="large-4 columns">
<input type="submit" value="Search" style="width:100%; padding-top: .5rem;
padding-bottom: .5rem;" class="button border-btn" />
</div>
</div>
</form>
Now according to the documentation there should not be an issue, and the page loads fine if the ->withInput();is removed.
现在根据文档，应该没有问题，如果->withInput();删除了页面，则页面加载正常。
The end goal is to roll in the answer that i received from my previous question Undesired result from db:rawand have a single page that loads the "Filtering" form and displays the relevant results on the reload and remembers the selections in the form.
最终目标是将我从我之前的问题db:raw 的 Undesired result 中收到的答案滚动，并有一个页面加载“过滤”表单并在重新加载时显示相关结果并记住表单中的选择。
Thanks in advance.
提前致谢。
UPDATE: Following a comment i have updated the controller and routes, still same result:
更新：根据评论，我更新了控制器和路由，结果仍然相同：
routes.php
路由文件
Route::get('jobs/search', 'JobsearchController@getSearch');
Route::get('jobs/search', 'JobsearchController@getSearch');
&
&
Route::post('jobs/search', 'JobsearchController@getJobs');
Route::post('jobs/search', 'JobsearchController@getJobs');
Controller
控制器
public function getSearch()
{
$position_options = DB::table('jposition')->lists('friendly','id');
$category_options = DB::table('jcategory')->lists('friendly','id');
$location_options = DB::table('jlocation')->lists('friendly','id');
return View::make('jobsearch.search', array('position_options' => $position_options, 'category_options' => $category_options, 'location_options' => $location_options));
}
public function getJobs()
{
$position_options = DB::table('jposition')->lists('friendly','id');
$category_options = DB::table('jcategory')->lists('friendly','id');
$location_options = DB::table('jlocation')->lists('friendly','id');
return View::make('jobsearch.search', array('position_options' => $position_options, 'category_options' => $category_options, 'location_options' => $location_options))->withInput();
}
回答by TonyArra
withInput()doesn't work the way you think it does. It's only a function of Redirect, not View.
withInput()不像你认为的那样工作。它只是重定向的功能，而不是视图。
Calling withInput($data)on View has a completely different effect; it passes the following key value pair to your view: 'input' => $data(you get an error because you're not passing any data to the function)
调用withInput($data)View有完全不同的效果；它将以下键值对传递给您的视图：（'input' => $data您收到错误，因为您没有将任何数据传递给函数）
To get the effect that you want, call Input::flash()before making your view, instead of calling withInput(). This should allow you to use the Input::old()function in your view to access the data.
要获得您想要的效果，请Input::flash()在创建视图之前调用，而不是调用withInput(). 这应该允许您Input::old()在视图中使用该函数来访问数据。
Alternatively, you could simply pass Input::all()to your view, and use the input[]array in your view:
或者，您可以简单地传递Input::all()给您的视图，并input[]在您的视图中使用该数组：
View::make(...)->withInput(Input::all());
which is translated to
这被翻译成
View::make(...)->with('input', Input::all());
As for your comment, I recommend doing it like so:
至于你的评论，我建议这样做：
$position_options = DB::table('jposition')->lists('friendly','id');
$category_options = DB::table('jcategory')->lists('friendly','id');
$location_options = DB::table('jlocation')->lists('friendly','id');
$category = Input::get('category');
$location = Input::get('location');
$type = Input:: get('type');
$data = compact('position_options', 'category_options', 'location_options', 'category', 'type', 'location');
return View::make('jobsearch.search', $data);
