php 如何使用 Laravel 中的旧输入重定向？
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/30002608/
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
How can I redirect with old input in Laravel?
提问by cyber8200
I have a login modal. When the user log-in fail the authentication, I want to redirect back to this modal with :
我有一个登录模式。当用户登录身份验证失败时，我想重定向回此模式：
- error message(s)
- and old input(s).
- 错误信息
- 和旧输入。
Controller
控制器
// if Auth Fail
return Redirect::to('/')
->with('error','Username/Password Wrong')
->withInput(Request::except('password'))
->withErrors($validator);
Form
形式
{!! Form::open(array('url' => '/', 'class' => 'login-form')) !!}
<div class="form-group">
<label for="username">Username</label>
<input type="text" class="form-control" id="username" name="username" placeholder="Enter Username" required>
</div>
<div class="form-group">
<label for="password">Password</label>
<input type="password" class="form-control" id="password" name="password" placeholder="Enter Password" required>
</div>
<button type="submit" class="btn btn-primary">Login</button>
{!! Form::close() !!}
As you can see as part of my image, the error message seem to display, but the old input of username doesn't seem to populate.
正如您在我的图像中看到的那样，错误消息似乎显示，但用户名的旧输入似乎没有填充。
Can someone please correct me ? Did I forget to do anything ? What is the most efficient way in Laravel to accomplish something like this ?
有人可以纠正我吗？我忘记做什么了吗？在 Laravel 中完成这样的事情最有效的方法是什么？
回答by toesslab
You can access the last inputs like so:
您可以像这样访问最后一个输入：
$username = Request::old('username');
$username = Request::old('username');
As pointed at by @Arian Acostayou may simply do
正如@Arian Acosta所指出的，你可以简单地做
<input type="text" ... value="{{ old('username') }}" ... >.
<input type="text" ... value="{{ old('username') }}" ... >.
As described in the docsit is more convenient in a blade view.
如文档中所述，在刀片视图中更方便。
There are several possibilties in the controller:
控制器中有几种可能性：
Instead of
->withInput(Request::except('password'))
代替
->withInput(Request::except('password'))
do:
做：
a)Input::flash();
一种）Input::flash();
or:
或者：
b)Input::flashExcept('password');
b)Input::flashExcept('password');
and redirect to the view with:
并重定向到视图：
a)->withInput(Input::except('password'));
一种）->withInput(Input::except('password'));
resp. with:
分别 和：
b)->withInput();
b)->withInput();
The docs about Old Inputfor further reading...
回答by Collin James
You are missing the value on your input element...
您缺少输入元素上的值...
value="{{ Input::get ('username', '') }}"
回答by Petro
For my project, I needed another way:
对于我的项目，我需要另一种方式：
Shove a GETrequest in the validation return to fetch some previous data:
GET在验证返回中推送请求以获取一些先前的数据：
// if the validator fails, redirect back to the form
if ($validator->fails()) {
//let's send some data back (Orlando,Florida):
return Redirect::to('auth/register?city=Orlando&State=Florida')
->withErrors($validator)
}else{
//validation success
}
