I'm lost with the DOM - how do I change one node attribute?

Monday 10 September 2007 7:47:32 am

Hi,

can someone help me understand what I'm doing wrong? I'm using a text attribute (data_text_1) in an order. This text attribute contains a serialized dom tree like:

<?xml version="1.0" encoding="UTF-8"?>
<shop_account>
<salutation>1</salutation>
<first-name>Pascal</first-name>
<last-name>Specht</last-name>
...
<transaction>[no transaction]</transaction>
</shop_account>

and I'd like to change the content "[no transaction]" to "[test]"...

I thought that I could do that by unserializing, then grabbing the element with elementsByName, and applying setAttribute and writing back as a string, but it doesn't... The node still contains [no transaction]!

				$xml = new eZXML();
				$xmlDoc =& $order->attribute( 'data_text_1' );
				if( $xmlDoc != null )
				{
					$dom =& $xml->domTree( $xmlDoc );
					if ($dom) 
					{
						$item =& $dom->elementsByName( "transaction" );
						$item->setAttribute( 'data_text', "[test]" );
					}
				}
				$order->setAttribute( 'data_text_1', $xmlDoc->toString() );

Obviously this doesn't work. Any ideas how to correct the problem would be greatly appreciated!

Pascal

Tuesday 11 September 2007 2:27:29 am

Hi Pascal,

I must admit I hadn't the order->store() instruction, but unfortunately, after adding it (and clearing the cache) it doesn't get better, the order still is unchanged. I suppose the two $item-> instructions to be wrong...

Thanks for your help,
Pascal

Tuesday 11 September 2007 3:43:56 am

Something like this maybe?

        $items =& $dom->elementsByName( "transaction" );
        
        // Note: php4 foreach copy's array values instead of referencing them
        for( $i = 0, $c = count( $items ); $c > $i ; $i++)
        {
            $items[$i]->setContent("[test]");
            //$items[$i]->setAttribute( 'data_text', "[test]" ); this will result in <transaction data_text="[test]">[no transaction]</transaction>
        }

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Tuesday 11 September 2007 7:24:54 am

Hi Pascal,
one more try:

                                $xml = new eZXML();
                                $xmlDoc =& $order->attribute( 'data_text_1' );
 
                                if( $xmlDoc != null )
                                {
                                        $dom =& $xml->domTree( $xmlDoc );
                                        if ($dom) 
                                        {
                                                $root =& $dom->root(); 
                                                $items =& $root->elementsByName( "transaction" );
                                                for( $i = 0, $c = count( $items ); $c > $i ; $i++)
                                                {
                                                        $items[$i]->setContent("[test]");
                                                }
                                        }
                                }
                                $str = "##" . $dom->toString() . "##";
                                $order->setAttribute( 'data_text_1', $str );
                                $order->store();

(getting the elements starting from DOM-Root)

Tuesday 11 September 2007 9:18:33 am

OK, so for anyone interrested in doing it, I found the solution now:

To replace all occurences of <xxx>*</xxx> you can do:

				$xml = new eZXML();
				$xmlDoc = "<?xml version=\"1.0\" encoding=\"UTF-8\"?> <a> <xxx>*</xxx> </a>";

				if( $xmlDoc != null )
				{
					$dom =& $xml->domTree( $xmlDoc );

					if ($dom) 
					{
						$root =& $dom->root(); 

                        $items =& $root->elementsByName( "xxx" );						
						for( $i = 0, $c = count( $items ); $c > $i ; $i++)
						{
							$element = $items[$i];
							if ( count( $element->Children ) > 0 )
							{
								 foreach( array_keys( $element->Children ) as $key )
								 {
									 $child =& $element->Children[$key];
									 $child->setContent("**********");
								 }
							}
						}
					}
				}