/**
* Builds an XML document to represent the model. Some configuration is
* available through <code>options</code>. However more complicated cases should
* override <code>Mad_Model_Base#toXml</code>.
*
* By default the generated XML document will include the processing
* instruction and all the object's attributes. For example:
*
* <?xml version="1.0" encoding="UTF-8"?>
* <topic>
* <title>The First Topic</title>
* <author-name>David</author-name>
* <id type="integer">1</id>
* <approved type="boolean">false</approved>
* <replies-count type="integer">0</replies-count>
* <bonus-time type="datetime">2000-01-01T08:28:00+12:00</bonus-time>
* <written-on type="datetime">2003-07-16T09:28:00+1200</written-on>
* <content>Have a nice day</content>
* <author-email-address>david@loudthinking.com</author-email-address>
* <parent-id></parent-id>
* <last-read type="date">2004-04-15</last-read>
* </topic>
*
* This behavior can be controlled with <code>only</code>, <code>except</code>,
* <code>skip_instruct</code>, <code>skip_types</code> and <code>dasherize</code>.
* The <code>only</code> and <code>except</code> options are the same as for the
* <code>attributes</code> method. The default is to dasherize all column names, but you
* can disable this setting <code>dasherize</code> to <code>false</code>. To not have the
* column type included in the XML output set <code>:skip_types</code> to <code>true</code>.
*
* For instance:
*
* $topic->toXml(array('skip_instruct' => true,
* 'except' => array('id', 'bonus_time', 'written_on', 'replies_count'));
*
* <topic>
* <title>The First Topic</title>
* <author-name>David</author-name>
* <approved type="boolean">false</approved>
* <content>Have a nice day</content>
* <author-email-address>david@loudthinking.com</author-email-address>
* <parent-id></parent-id>
* <last-read type="date">2004-04-15</last-read>
* </topic>
*
* To include first level associations use <code>include</code>:
*
* $firm->toXml(array('include' => array('Account', 'Clients')));
*
* <?xml version="1.0" encoding="UTF-8"?>
* <firm>
* <id type="integer">1</id>
* <rating type="integer">1</rating>
* <name>37signals</name>
* <clients type="array">
* <client>
* <rating type="integer">1</rating>
* <name>Summit</name>
* </client>
* <client>
* <rating type="integer">1</rating>
* <name>Microsoft</name>
* </client>
* </clients>
* <account>
* <id type="integer">1</id>
* <credit-limit type="integer">50</credit-limit>
* </account>
* </firm>
*
* To include deeper levels of associations pass a hash like this:
*
* $firm->toXml(array('include' => array('Account' => array(),
* 'Clients' => array('include' => 'Address'))));
*
* <?xml version="1.0" encoding="UTF-8"?>
* <firm>
* <id type="integer">1</id>
* <rating type="integer">1</rating>
* <name>37signals</name>
* <clients type="array">
* <client>
* <rating type="integer">1</rating>
* <name>Summit</name>
* <address>
* ...
* </address>
* </client>
* <client>
* <rating type="integer">1</rating>
* <name>Microsoft</name>
* <address>
* ...
* </address>
* </client>
* </clients>
* <account>
* <id type="integer">1</id>
* <credit-limit type="integer">50</credit-limit>
* </account>
* </firm>
*
* To include any methods on the model being called use <code>methods</code>:
*
* $firm->toXml(array('methods' => array('calculated_earnings', 'real_earnings')));
*
* <firm>
* # ... normal attributes as shown above ...
* <calculated-earnings>100000000000000000</calculated-earnings>
* <real-earnings>5</real-earnings>
* </firm>
*
* As noted above, you may override <code>toXml()</code> in your <code>Mad_Model_Base</code>
* subclasses to have complete control about what's generated. The general
* form of doing this is:
*
* class IHaveMyOwnXML extends Mad_Model_Base
* {
* public function toXml($options = array)
* {
* // ...
* }
* }
*/
public function toXml($options = array())
{
$serializer = new Mad_Model_Serializer_Xml($this, $options);
return $serializer->serialize();
}
public function testSerializeWithProperties()
{
$record = $this->articles('xml_rpc');
$record->validity = array('is' => 'great');
$record->is_good = true;
$options = array('properties' => array('validity', 'is_good'), 'indent' => 0);
$serializer = new Mad_Model_Serializer_Xml($record, $options);
$xml = $serializer->serialize($record, $options);
$this->assertContains('<is-good type="boolean">true</is-good>', $xml);
$this->assertContains('<validity><is>great</is></validity>', $xml);
}
