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<?php
//
// $Id: Memory_XML.php 175303 2004-12-21 19:59:20Z dufuz $
//
//ini_set('include_path',realpath(dirname(__FILE__).'/../../').':'.realpath(dirname(__FILE__).'/../../../includes').':'.ini_get('include_path'));
//ini_set('error_reporting',E_ALL);
/**
* this is a helper function, so i dont have to write so many prints :-)
* @param array $para the result returned by some method, that will be dumped
* @param string $string the explaining string
*/
function dumpHelper($para, $string = '')
{
global $tree;
echo'<i><u><font color="#008000">' . $string . '</font></u></i><br>';
// this method dumps to the screen, since print_r or var_dump dont
// work too good here, because the inner array is recursive
// well, it looks ugly but one can see what is meant :-)
$tree->varDump($para);
echo '<br>';
}
/**
* dumps the entire structure nicely
* @param string $string the explaining string
*/
function dumpAllNicely($string = '')
{
global $tree;
echo '<i><u><font color="#008000">' . $string . '</font></u></i><br>';
$all = $tree->getNode(); // get the entire structure sorted as the tree is, so we can simply foreach through it and show it
foreach ($all as $aElement) {
for ($i = 0; $i < $aElement['level']; $i++) {
echo ' ';
}
echo '<b>' . $aElement['name'] . '</b> ===> ';
// you can also show all the content, using this
// $tree->varDump(array($aElement));
// i just didnt, since it takes up more then the entire line, and its unreadable :-)
echo 'attributes - ';
print_r($aElement['attributes']);
echo '<br>';
}
echo '<br>';
}
/*
This example demonstrates how to manage trees
that are saved in an XML-file
it reads out the entire file upon calling the method
'setup', then you can work on the tree in whichever way
you want, just have a look at the examples
there are different ways to achieve things,
i will try to demonstrate (all of) them
NOTE: for referening the XML-Nodes currently everything has to
be lower case,
SimpleTemplate/preFilter
should be
simpletemplate/prefilter
*/
require_once 'Tree/Tree.php';
// calling 'setupMemory' means to retreive a class, which works on trees,
// that are temporarily stored in the memory, in an array
// this means the entire tree is available at all time
// consider the resource usage and it's not to suggested to work
// on huge trees (upto 1000 elements it should be ok, depending on your environment and requirements)
// using 'setupMemory'
$tree = Tree::setupMemory('XML', // use the XML class to read an xml file
'config.xml' // the DSN
);
// methods 'add' 'remove' and so on are not implemented yet, you can only read the tree for now
// and navigate inside of it
// call 'setup', to build the inner array, so we can work on the structure using the
// given methods
$tree->setup();
dumpAllNicely('dump all after "$tree->setup"');
// get the path of the last inserted element
echo 'id='.$id = $tree->getIdByPath('simpletemplate/options/delimiter');
dumpHelper( $tree->getPath( $id ) , 'dump the path from "simpletemplate/options/delimiter"');
$id = $tree->getIdByPath('simpletemplate/options');
dumpHelper(array($tree->getParent($id)) , 'dump the parent of "simpletemplate/options"');
// you can also use: $tree->data[$id]['parent']
$id = $tree->getIdByPath('simpletemplate');
dumpHelper(array($tree->getChild($id)) , 'dump the child of "simpletemplate"');
// you can also use: $tree->data[$id]['child']
$id = $tree->getIdByPath('simpletemplate/prefilter');
dumpHelper($tree->getChildren($id) , 'dump the children of "simpletemplate/prefilter"');
// you can also use: $tree->data[$id]['children']
$id = $tree->getIdByPath('simpletemplate/options');
dumpHelper(array($tree->getNext($id)) , 'dump the "next" of "simpletemplate/options"');
// you can also use: $tree->data[$id]['next']
$id = $tree->getIdByPath('simpletemplate/prefilter');
dumpHelper( array($tree->getPrevious($id)) , 'dump the "previous" of "simpletemplate/prefilter"');
// you can also use: $tree->data[$id]['previous']
$id = $tree->getIdByPath('simpletemplate/preFilter');
$element = $tree->data[$id]['child']['next']['next']; // refer to the third child of 'SimpleTemplate/preFilter/register'
dumpHelper($element['id'] , 'demo of using the internal array, for referencing tree-nodes');
/*
NOT IMPLEMENTED YET
$id = $tree->getIdByPath('myElement/anotherSubElement');
$tree->move( $id , 0 );
$tree->setup(); // rebuild the structure again, since we had changed it
dumpAllNicely( 'dump all, after "myElement/anotherSubElement" was moved under the root' );
$moveId = $tree->getIdByPath('myElement');
$id = $tree->getIdByPath('anotherSubElement');
$tree->move( $moveId , $id );
$tree->setup(); // rebuild the structure again, since we had changed it
dumpAllNicely( 'dump all, after "myElement" was moved under the "anotherSubElement"' );
$tree->setRemoveRecursively(true);
$tree->remove(0);
echo '<font color="red">ALL ELEMENTS HAVE BEEN REMOVED (uncomment this part to keep them in the DB after running this test script)</font>';
*/
?>
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