Laravel 扩展 Form 类
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Laravel extend Form class
提问by enchance
I'm trying to extend the Formclass in L4.1 but I seem to be missing something. My file is named FormBuilder.phpbased on the API and is saved in app/libraries/extended/FormBuilder.php.
我正在尝试扩展FormL4.1 中的课程，但我似乎遗漏了一些东西。我的文件是FormBuilder.php基于 API命名的，并保存在app/libraries/extended/FormBuilder.php 中。
<?php namespace Extended;
class FormBuilder extends \Illuminate\Html\FormBuilder {
/**
* Create a text input field.
*
* @param string $name
* @param string $value
* @param array $options
* @return string
*/
public function text($name, $value = null, $options = array())
{
$options = $options + array('id'=>"field-{$name}");
return $this->input('text', $name, $value, $options);
}
}
This is actually the first time I've tried extending a core class in Laravel. I can't seem to put my finger on how to properly extend core classes like this Formclass.
这实际上是我第一次尝试在 Laravel 中扩展核心类。我似乎无法确定如何正确扩展此类核心Form类。
Edit:I added "app/libraries/extended"to my composer.jsonfile and ran both composer.phar updateand composer.phar dump-autoloadbut it still seemed to be using the core class instead of my extended one. What am I forgetting to do?
编辑：我添加"app/libraries/extended"到我的composer.json文件并运行两个composer.phar update，composer.phar dump-autoload但它似乎仍然使用核心类而不是我的扩展类。我忘了做什么？
回答by Antonio Carlos Ribeiro
To extend/swap a Laravel core class, you can create a Service Provider:
要扩展/交换 Laravel 核心类，您可以创建一个服务提供者：
File: app/App/Libraries/Extensions/FormBuilder/FormBuilderServiceProvider.php
文件： app/App/Libraries/Extensions/FormBuilder/FormBuilderServiceProvider.php
<?php namespace App\Libraries\Extensions\FormBuilder;
use Illuminate\Support\ServiceProvider as IlluminateServiceProvider;
use App\Libraries\Extensions\FormBuilder\FormBuilder;
class FormBuilderServiceProvider extends IlluminateServiceProvider {
/**
* Indicates if loading of the provider is deferred.
*
* @var bool
*/
protected $defer = true;
/**
* Register the service provider.
*
* @return void
*/
public function register()
{
$this->app->bindShared('formbuilder', function($app)
{
$form = new FormBuilder($app['html'], $app['url'], $app['session.store']->getToken());
return $form->setSessionStore($app['session.store']);
});
}
/**
* Get the services provided by the provider.
*
* @return array
*/
public function provides()
{
return array('formbuilder');
}
}
Create a Facade for it:
为它创建一个外观：
File: app/App/Libraries/Extensions/FormBuilder/FormBuilderFacade.php
文件： app/App/Libraries/Extensions/FormBuilder/FormBuilderFacade.php
<?php namespace App\Libraries\Extensions\FormBuilder;
use Illuminate\Support\Facades\Facade as IlluminateFacade;
class FormBuilderFacade extends IlluminateFacade {
/**
* Get the registered name of the component.
*
* @return string
*/
protected static function getFacadeAccessor() { return 'formbuilder'; }
}
This would be your namespaced service class:
这将是您的命名空间服务类：
File: app/App/Libraries/Extensions/FormBuilder/FormBuilder.php
文件： app/App/Libraries/Extensions/FormBuilder/FormBuilder.php
<?php namespace App\Libraries\Extensions\FormBuilder;
use \Illuminate\Html\FormBuilder as IlluminateFormBuilder;
class FormBuilder extends IlluminateFormBuilder {
public function text($name, $value = null, $options = array())
{
$options = $options + array('id'=>"field-{$name}");
return $this->input('text', $name, $value, $options);
}
}
Open app/config/app.phpand your Service Provider to the list
打开app/config/app.php和您的服务提供商列表
'App\Libraries\Extensions\FormBuilder\FormBuilderServiceProvider',
And replace Laravel's Form alias with yours
并用你的替换 Laravel 的 Form 别名
'Form' => 'App\Libraries\Extensions\FormBuilder\FormBuilderFacade',
To test I created a router like this:
为了测试，我创建了一个这样的路由器：
Route::any('test', function() {
return e(Form::text('first_name'));
});
And it gave me this result:
它给了我这个结果：
<input id="field-first_name" name="first_name" type="text">
