Php 如何在Laravel中从XML构建表单

更新：
我知道如何解析XML，但不知道它在体系结构中的具体位置，请参阅下面定义的问题。
欢迎所有建议

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我努力进入Laravel，尝试从XML文件构建表单

问题：

如何将数据从XML获取到视图中

在何处构建表单-在重复方面，我更愿意创建一次表单，并使用它进行创建、编辑和查看

验证-我希望尽可能地重用它

XML:foods\u form.XML（简化）：

---

Laravel不会帮助您从一些XML创建表单

您需要使用类似于

SimpleXML

的库解析XML：您将找到一些文档

从创建SimpleXMLElement开始：

$xml = new SimpleXMLElement('../path/to/your/file/foods_form.xml', 0, true);

现在，您可以使用

$xml

对象生成表单，这与xml的格式有关（转储

$xml

对象以了解其结构）

只需将对象放在视图中，即可直接使用它

---

要验证表单，可以使用Laravel的

验证
：
我还没有找到一个XSL友好的MVC

我的做法（在视图中非常喜欢XSL）

最后一页将有3个模块，比如：

我的观点只会包含

// I don't know how you simply echo a variable from "yet another framework"
// but this is the only thing you need to do from the view
echo $someModule;
echo $otherModule;
echo $lastModule;

我的控制器将有3个额外的依赖项来包含我要执行的任何逻辑。并使用最简单的类来应用我的xsl

<?php
class SomeController extends SomeMvcController {

    private $someModuleLogic;
    private $otherModuleLogic;
    private $lastModuleLogic;
    private $xslTransformer;


    public function __construct( XslTransformer $xslTransformer, $someModuleLogic, $otherModuleLogic, $lastModuleLogic ) {
        $this->someModuleLogic  = $someModuleLogic;
        $this->otherModuleLogic = $otherModuleLogic;
        $this->lastModuleLogic  = $lastModuleLogic;

        parent::__construct();
        $this->xslTransformer = $xslTransformer;
    }


    public function someAction() {

        /**
         * doStuff functions will take your parameters like get, post etc and return a DomDocument object
         * which can be programmatically calculated via PHP or generated by reading an XML file (or xml from any buffer)
         */
        $someModule  = $this->xslTransformer->transform(
            'myViews/modules/someModule.xsl',
            $this->someModeuleLogic->doStuff()
    );
        $otherModule = $this->xslTransformer->transform(
            'myViews/modules/otherModule.xsl',
            $this->otherModeuleLogic->doStuff()
    );
        $lastModule  = $this->xslTransformer->transform(
            'myViews/modules/lastModule.xsl',
            $this->lastModeuleLogic->doStuff()
    );        }
}



class XslTransformer {

    public function transform( $xslLocation, DOMDocument $domDocument ) {
        $xslDocument = new DOMDocument();
        $xslDocument->load( $xslLocation );

        $xsltProcessor = new XSLTProcessor();
        $xsltProcessor->importStylesheet( $xslDocument );

        $document                     = $xsltProcessor->transformToDoc( $domDocument );
        $document->encoding           = 'UTF-8';
        $document->formatOutput       = true;
        $document->preserveWhiteSpace = false;

        return $document;
    }
}

xslTransformer->transform(
“myViews/modules/someModule.xsl”，
$this->someModeuleLogic->doStuff（）
);
$otherModule=$this->xsltranformer->transform(
“myViews/modules/otherModule.xsl”，
$this->otherModeuleLogic->doStuff（）
);
$lastModule=$this->xsltranformer->transform(
“myViews/modules/lastModule.xsl”，
$this->lastModeuleLogic->doStuff（）
);        }
}
类XslTransformer{
公共函数转换（$xslLocation，DOMDocument$DOMDocument）{
$xslDocument=newdomdocument（）；
$xslDocument->load（$xslLocation）；
$xsltProcessor=新的xsltProcessor（）；
$xsltProcessor->importStylesheet（$xslDocument）；
$document=$xsltProcessor->transformToDoc（$domDocument）；
$document->encoding='UTF-8'；
$document->formatOutput=true；
$document->preserveWhiteSpace=false；
返回$document；
}
}

这使得我的视图/控制器非常小且简单，没有任何逻辑。每件事都是在课堂上完成的，我可以把它切成简单的小块
 下面是一个开始，您可以构建一个类来处理XML到HTML表单的转换

<?php

class XmlToHtmlFormConverter {


    public function buildFormContent($filename)
    {
        $xml_fields = new SimpleXmlElement($filename, 0, true);
        $html = '';

        foreach ($xml_fields as $field) {
            $attributes = $field->attributes();
            $html .= '<label for="'.$attributes['name'].'">'.$attributes['label'].'</label>'.PHP_EOL;

            if ('text' == $attributes['type']) {
                $html .= '<input type="text" name="'.$attributes['name'].'" />'.PHP_EOL;
            } else {
                $html .= $this->buildOptionInputs($field);
            }
        }

        return $html;
    }


    protected function buildOptionInputs($field)
    {
        $html = '';
        $attributes = $field->attributes();
        foreach ($field->option as $option) {
            $html .= '<input type="radio" name="'.$attributes['name'].'" value="'.$option.'" />'.PHP_EOL;
        }
        return $html;
    }
}

// Uncomment below to actually see the output, this works with your xml file.
// $converter = new XmlToHtmlFormConverter;
// echo $converter->buildFormContent('form.xml');

然后你的观点会是这样的

@extends('layout')
@section('content')

<form action="{{ action('FormsController@handleCreate') }}" method="post" role="form">

    {{ $form_content }}

    <input type="submit" value="Create" />
    <a href="{{ action('FormsController@index') }}">Cancel</a>
</form>
@stop

@extends（'layout'））
@节（“内容”）
{{$form_content}}
@停止
好的，我可以解析文件。对我来说，将这种逻辑编码到视图中似乎不太像MVC。有什么想法吗？创建一个类，将
$xml
解析为HTML表单，并通过构造函数将其注入控制器？然后您的控制器可以执行如下操作：
$xml=newsimplexmlement（'../path/to/forms.xml'）$html=$this->xml\u form\u parser->parseToHtml（$xml）谢谢，这非常有帮助！谢谢，我是XSL新手，一定会研究它的。
<?php
class SomeController extends SomeMvcController {

    private $someModuleLogic;
    private $otherModuleLogic;
    private $lastModuleLogic;
    private $xslTransformer;


    public function __construct( XslTransformer $xslTransformer, $someModuleLogic, $otherModuleLogic, $lastModuleLogic ) {
        $this->someModuleLogic  = $someModuleLogic;
        $this->otherModuleLogic = $otherModuleLogic;
        $this->lastModuleLogic  = $lastModuleLogic;

        parent::__construct();
        $this->xslTransformer = $xslTransformer;
    }


    public function someAction() {

        /**
         * doStuff functions will take your parameters like get, post etc and return a DomDocument object
         * which can be programmatically calculated via PHP or generated by reading an XML file (or xml from any buffer)
         */
        $someModule  = $this->xslTransformer->transform(
            'myViews/modules/someModule.xsl',
            $this->someModeuleLogic->doStuff()
    );
        $otherModule = $this->xslTransformer->transform(
            'myViews/modules/otherModule.xsl',
            $this->otherModeuleLogic->doStuff()
    );
        $lastModule  = $this->xslTransformer->transform(
            'myViews/modules/lastModule.xsl',
            $this->lastModeuleLogic->doStuff()
    );        }
}



class XslTransformer {

    public function transform( $xslLocation, DOMDocument $domDocument ) {
        $xslDocument = new DOMDocument();
        $xslDocument->load( $xslLocation );

        $xsltProcessor = new XSLTProcessor();
        $xsltProcessor->importStylesheet( $xslDocument );

        $document                     = $xsltProcessor->transformToDoc( $domDocument );
        $document->encoding           = 'UTF-8';
        $document->formatOutput       = true;
        $document->preserveWhiteSpace = false;

        return $document;
    }
}

<?php

class XmlToHtmlFormConverter {


    public function buildFormContent($filename)
    {
        $xml_fields = new SimpleXmlElement($filename, 0, true);
        $html = '';

        foreach ($xml_fields as $field) {
            $attributes = $field->attributes();
            $html .= '<label for="'.$attributes['name'].'">'.$attributes['label'].'</label>'.PHP_EOL;

            if ('text' == $attributes['type']) {
                $html .= '<input type="text" name="'.$attributes['name'].'" />'.PHP_EOL;
            } else {
                $html .= $this->buildOptionInputs($field);
            }
        }

        return $html;
    }


    protected function buildOptionInputs($field)
    {
        $html = '';
        $attributes = $field->attributes();
        foreach ($field->option as $option) {
            $html .= '<input type="radio" name="'.$attributes['name'].'" value="'.$option.'" />'.PHP_EOL;
        }
        return $html;
    }
}

// Uncomment below to actually see the output, this works with your xml file.
// $converter = new XmlToHtmlFormConverter;
// echo $converter->buildFormContent('form.xml');

class TestsController extends BaseController {

    protected $xml_to_html_form_converter;


    public function __construct(XmlToHtmlFormConverter $xml_to_html_form_converter)
    {
        $this->xml_to_html_form_converter = $xml_to_html_form_converter;
    }


    public function index() {
        // return some view
    }


    public function create() {
        $xml_file_path = 'some/path/xmlfile.xml';
        return View::make('create')->with(array(
            'form_content' => $this->xml_to_html_form_converter->buildFormContent($xml_file_path);
        ));
    }


    public function handleCreate() {
        // do your validations like you would with any html form
    }
}

@extends('layout')
@section('content')

<form action="{{ action('FormsController@handleCreate') }}" method="post" role="form">

    {{ $form_content }}

    <input type="submit" value="Create" />
    <a href="{{ action('FormsController@index') }}">Cancel</a>
</form>
@stop