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<?php
namespace Mediawiki\DataModel;
use LogicException;
/**
* Class Representing the content of a revision
* @author Addshore
*/
class Content {
/**
* @var string sha1 hash of the object content upon creation
*/
private $initialHash;
/**
* @var mixed
*/
private $data;
/**
* @var string|null
*/
private $model;
/**
* Should always be called AFTER overriding constructors so a hash can be created
*
* @param mixed $data
* @param string|null $model
*/
public function __construct( $data, $model = null ) {
$this->data = $data;
$this->model = $model;
$this->initialHash = $this->getHash();
}
/**
* @return string
*/
public function getModel() {
return $this->model;
}
/**
* Returns a sha1 hash of the content
*
* @throws LogicException
* @return string
*/
public function getHash() {
$data = $this->getData();
if( is_object( $data ) ) {
if( method_exists( $data, 'getHash' ) ) {
return $data->getHash();
} else {
return sha1( serialize( $data ) );
}
}
if( is_string( $data ) ) {
return sha1( $data );
}
throw new LogicException( "Cant get hash for data of type: " . gettype( $data ) );
}
/**
* Has the content been changed since object construction (this shouldn't happen!)
* @return bool
*/
public function hasChanged() {
return $this->initialHash !== $this->getHash();
}
/**
* @return mixed
*/
public function getData() {
return $this->data;
}
}
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