如何使用我的类/对象使用Symfony Serializer添加/更新xml属性？

时间：2018-01-26 10:43:42

标签： symfony xmlserializer serializer

我有以下代码示例，它定义了一个可以保存姓名和电话号码列表的Contact类。我想要做的是设置＆＃34; primary＆＃34;的属性。在所有数字上，其值为＆＃39; 1＆＃39;其中一个是任意的，＆＃39; 0＆＃39; 0其余的。

我真的很喜欢使用类方法来做这件事，但是找不到使用setter做到这一点的方法 - 是否可能以某种方式？

这是我的代码。在其中我：

  1. 创建我的对象并设置其属性
  2. print_r Contact对象以查看其存储方式
  3. 反序列化我希望能够生成的xml 相同的联系对象
  4. print_r Contact对象以查看其存储方式
  5. 使用setter
    6. 添加另一个号码
  6. print_r Contact对象以查看其存储方式
  7. 序列化为xml并查看如何处理对象和数组的混合
  8. 打印xml 
    9. <?php
// Symfony Serializer experiment  

require $_SERVER['DOCUMENT_ROOT'].'/libraries/symfony/vendor/autoload.php';

use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Encoder\XmlEncoder;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;

Class Number { 
    private $Number;
    private $Type;
    // Getters    
    public function getNumber()
    {
        return $this->Number;
    }
    public function getType()
    {
        return $this->Type;
    }     
    // Setters    
    public function setNumber($number)
    {
        $this->Number = $number;

        return $this;
    } 
    public function setType($type)
    {
        $this->Type = $type;

        return $this;
    }                 
} 

class Contact
{
    private $Name;
    private $Numbers = array();

    function __construct() {
        ${@Primary} = 0;    
    }

    // Getters
    public function getName()
    {
        return $this->Name;
    }
    public function getNumbers()
    {
        return $this->Numbers;
    }  
    // Setters
    public function setName($name)
    {
        $this->Name = $name;

        return $this;        
    }
    public function setNumbers($numbers)
    {
        $this->Numbers = $numbers;

        return $this;        
    }
    public function addNumber($number) {
        $this->Numbers['Number'][] = $number;
    }    
}

// Serializer setup

$xmlEncoder = new XmlEncoder();
$xmlEncoder->setRootNodeName('Contact');                
$encoders = array($xmlEncoder, new JsonEncoder());
$normalizers = array(new ObjectNormalizer());
$serializer = new Serializer($normalizers, $encoders);

// Create my object

$contact = new Contact();
$contact->setName('baa');
$number = new Number();
$number->setNumber('07878386123')->setType('Mobile');
$contact->addNumber($number);

// take a look at how it's stored

echo "<pre lang=xml>";
print_r($contact);
echo "</pre><br><br>";

// deserialize my desired xml into the same object

$data = <<<EOF
<Contact>
    <Name>foo</Name>
    <Numbers>
        <Number primary='1'>
            <Number>07878386459</Number>
            <Type>Mobile</Type>
        </Number>    
        <Number primary='0'>
            <Number>02380860835</Number>
            <Type>Landline</Type>
        </Number>            
    </Numbers>        
</Contact>
EOF;

$contact = $serializer->deserialize($data, Contact::class, 'xml', array('object_to_populate' => $contact));

// take a look at how it's stored

echo "<pre lang=xml>";
print_r($contact);
echo "</pre><br><br>";

// Add another number

$number = new Number();
$number->setNumber('02387345123')->setType('Landline');
$contact->addNumber($number);

// take a look at how it's stored

echo "<pre lang=xml>";
print_r($contact);
echo "</pre><br><br>";

// serialize  to xml and see how the mixture of objects and arrays are treated

$xmlContent = $serializer->serialize($contact, 'xml');

$dom = new domDocument( '1.0', 'utf-8' );
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$result = $dom->loadXML($xmlContent);
$xmlContentFormatted=htmlentities($dom->saveXML());
?>
<pre lang=xml><?= $xmlContentFormatted ?></pre>

    我在输出中看到的是：

    2）

    Contact Object
(
    [Name:Contact:private] => baa
    [Numbers:Contact:private] => Array
        (
            [Number] => Array
                (
                    [0] => Number Object
                        (
                            [Number:Number:private] => 07878386123
                            [Type:Number:private] => Mobile
                        )   
                )   
        )   
)

    4）

    Contact Object
(
    [Name:Contact:private] => foo
    [Numbers:Contact:private] => Array
        (
            [Number] => Array
                (
                    [0] => Array
                        (
                            [@primary] => 1
                            [Number] => 07878386459
                            [Type] => Mobile
                        )    
                    [1] => Array
                        (
                            [@primary] => 0
                            [Number] => 02380860835
                            [Type] => Landline
                        )   
                )   

)

    6）对象和数组的混合。我可以编码我的Number类，以便它使用数组而不是属性，并有另一种方法来设置属性？ （例如

    $number->setNumber('07878386123')->setType('Mobile')->addAttr(array('primary' => '1'));

Contact Object
(
    [Name:Contact:private] => foo
    [Numbers:Contact:private] => Array
        (
            [Number] => Array
                (
                    [0] => Array
                        (
                            [@primary] => 1
                            [Number] => 07878386459
                            [Type] => Mobile
                        )    
                    [1] => Array
                        (
                            [@primary] => 0
                            [Number] => 02380860835
                            [Type] => Landline
                        )

                    [2] => Number Object
                        (
                            [Number:Number:private] => 02387345123
                            [Type:Number:private] => Landline
                        )    
                )    
        )    
)

    8）

    <?xml version="1.0"?>
<Contact>
  <Name>foo</Name>
  <Numbers>
    <Number primary="1">
      <Number>07878386459</Number>
      <Type>Mobile</Type>
    </Number>
    <Number primary="0">
      <Number>02380860835</Number>
      <Type>Landline</Type>
    </Number>
    <Number>
      <Number>02387345123</Number>
      <Type>Landline</Type>
    </Number>
  </Numbers>
</Contact>

    当从具有使用属性的标签的XML反序列化时，php对象使用数组，因此如果你想从可以赋予属性的php表示开始，你需要使用数组。

1 个答案:

答案 0 :(得分：1)

相当不成熟的黑客，但设法找到一种方法使其工作。修改后的例子现在可以满足我的需求：

<?php
// Symfony Serializer experiment  

require $_SERVER['DOCUMENT_ROOT'].'/libraries/symfony/vendor/autoload.php';

use Symfony\Component\Serializer\Serializer;
use Symfony\Component\Serializer\Encoder\XmlEncoder;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;

// build datastructure as array
Class Number { 
    private $data;

    public function __construct(array $attributes) {
        $data = ['Number'];
        foreach ($attributes as $name => $value) {
            $this->data['Number']['@'.$name] = $value;
        }
    }

    // Getters    
    public function getNumber()
    {
        return $this->data['Number']['Number'];
    }
    public function getType()
    {
        return $this->data['Number']['Type'];
    }

    public function get() 
    {
        return $this->data['Number'];    
    }         
    // Setters    
    public function setNumber($number)
    {
        $this->data['Number']['Number'] = $number;

        return $this;
    } 
    public function setType($type)
    {
        $this->data['Number']['Type'] = $type;

        return $this;
    }

}

class Contact
{
    private $data;

    // Getters
    public function getName()
    {
        return $this->data['Contact']['Name'];
    }
    public function getNumbers()
    {
        return $this->data['Contact']['Numbers'];
    }
    public function get() 
    {
        return $this->data['Contact']; // this is the top level so return the Contact element, not data.    
    }      
    // Setters
    public function setName($name)
    {
        $this->data['Contact']['Name'] = $name;        

        return $this;        
    }
    public function setNumbers($numbers)
    {
        $this->data['Contact']['Numbers'] = $numbers;        

        return $this;        
    }
    public function addNumber($number) {
        $this->data['Contact']['Numbers']['Number'][] = $number;
    }    
}

// Serializer setup

$xmlEncoder = new XmlEncoder();
$xmlEncoder->setRootNodeName('Contact');                
$encoders = array($xmlEncoder, new JsonEncoder());
$normalizers = array(new ObjectNormalizer());
$serializer = new Serializer($normalizers, $encoders);
$encoder = new \Symfony\Component\Serializer\Encoder\XmlEncoder();

// Create my object

$contact = (new Contact)->setName('Foo Bar');
$number = (new Number(array('primary'=>'1')))->setNumber('07878386123')->setType('Mobile');
$number_data = $number->get();
$contact->addNumber($number_data);
$number = (new Number(array('primary'=>'0')))->setNumber('02380876345')->setType('Landline');
$number_data = $number->get();
$contact->addNumber($number_data);

echo "<pre lang=xml>";
print_r($contact);
echo "</pre><br><br>";

$xmlContent = $serializer->serialize($contact->get(), 'xml');

$dom = new domDocument( '1.0', 'utf-8' );
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$result = $dom->loadXML($xmlContent);
$xmlContentFormatted=htmlentities($dom->saveXML());
?>
<pre lang=xml><?= $xmlContentFormatted ?></pre>

输出：

Contact Object
(
    [data:Contact:private] => Array
        (
            [Contact] => Array
                (
                    [Name] => Foo Bar
                    [Numbers] => Array
                        (
                            [Number] => Array
                                (
                                    [0] => Array
                                        (
                                            [@primary] => 1
                                            [Number] => 07878386123
                                            [Type] => Mobile
                                        )

                                    [1] => Array
                                        (
                                            [@primary] => 0
                                            [Number] => 02380876345
                                            [Type] => Landline
                                        )
                                )
                        )
                )
        )
)


<?xml version="1.0"?>
<Contact>
  <Name>Foo Bar</Name>
  <Numbers>
    <Number primary="1">
      <Number>07878386123</Number>
      <Type>Mobile</Type>
    </Number>
    <Number primary="0">
      <Number>02380876345</Number>
      <Type>Landline</Type>
    </Number>
  </Numbers>
</Contact>
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