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joko |
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<?php |
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// |
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// $Id: Memory_XML.php,v 1.2 2003/01/30 17:43:41 cain Exp $ |
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// |
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//ini_set('include_path',realpath(dirname(__FILE__).'/../../').':'.realpath(dirname(__FILE__).'/../../../includes').':'.ini_get('include_path')); |
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//ini_set('error_reporting',E_ALL); |
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/** |
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* this is a helper function, so i dont have to write so many prints :-) |
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* @param array $para the result returned by some method, that will be dumped |
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* @param string $string the explaining string |
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*/ |
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function dumpHelper( $para , $string='' ) |
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{ |
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global $tree; |
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print '<i><u><font color="#008000">'.$string.'</font></u></i><br>'; |
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// this method dumps to the screen, since print_r or var_dump dont |
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// work too good here, because the inner array is recursive |
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// well, it looks ugly but one can see what is meant :-) |
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$tree->varDump($para); |
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print '<br>'; |
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} |
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/** |
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* dumps the entire structure nicely |
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* @param string $string the explaining string |
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*/ |
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function dumpAllNicely( $string='' ) |
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{ |
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global $tree; |
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print '<i><u><font color="#008000">'.$string.'</font></u></i><br>'; |
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$all = $tree->getNode(); // get the entire structure sorted as the tree is, so we can simply foreach through it and show it |
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foreach( $all as $aElement ) |
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{ |
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for( $i=0 ; $i<$aElement['level'] ; $i++) |
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print ' '; |
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print '<b>'.$aElement['name'].'</b> ===> '; |
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// you can also show all the content, using this |
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// $tree->varDump(array($aElement)); |
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// i just didnt, since it takes up more then the entire line, and its unreadable :-) |
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print 'attributes - '; |
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print_r($aElement['attributes']); |
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print '<br>'; |
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} |
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print '<br>'; |
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} |
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/* |
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This example demonstrates how to manage trees |
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that are saved in an XML-file |
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it reads out the entire file upon calling the method |
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'setup', then you can work on the tree in whichever way |
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you want, just have a look at the examples |
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there are different ways to achieve things, |
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i will try to demonstrate (all of) them |
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NOTE: for referening the XML-Nodes currently everything has to |
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be lower case, |
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SimpleTemplate/preFilter |
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should be |
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simpletemplate/prefilter |
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*/ |
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require_once('Tree/Tree.php'); |
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// calling 'setupMemory' means to retreive a class, which works on trees, |
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// that are temporarily stored in the memory, in an array |
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// this means the entire tree is available at all time |
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// consider the resource usage and it's not to suggested to work |
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// on huge trees (upto 1000 elements it should be ok, depending on your environment and requirements) |
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// using 'setupMemory' |
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$tree = Tree::setupMemory( 'XML', // use the XML class to read an xml file |
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'config.xml' // the DSN |
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); |
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// methods 'add' 'remove' and so on are not implemented yet, you can only read the tree for now |
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// and navigate inside of it |
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// call 'setup', to build the inner array, so we can work on the structure using the |
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// given methods |
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$tree->setup(); |
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dumpAllNicely( 'dump all after "$tree->setup"' ); |
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// get the path of the last inserted element |
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print 'id='.$id = $tree->getIdByPath('simpletemplate/options/delimiter'); |
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dumpHelper( $tree->getPath( $id ) , 'dump the path from "simpletemplate/options/delimiter"' ); |
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$id = $tree->getIdByPath('simpletemplate/options'); |
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dumpHelper( array($tree->getParent($id)) , 'dump the parent of "simpletemplate/options"' ); |
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// you can also use: $tree->data[$id]['parent'] |
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$id = $tree->getIdByPath('simpletemplate'); |
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dumpHelper( array($tree->getChild($id)) , 'dump the child of "simpletemplate"' ); |
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// you can also use: $tree->data[$id]['child'] |
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$id = $tree->getIdByPath('simpletemplate/prefilter'); |
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dumpHelper( $tree->getChildren($id) , 'dump the children of "simpletemplate/prefilter"' ); |
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// you can also use: $tree->data[$id]['children'] |
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$id = $tree->getIdByPath('simpletemplate/options'); |
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dumpHelper( array($tree->getNext($id)) , 'dump the "next" of "simpletemplate/options"' ); |
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// you can also use: $tree->data[$id]['next'] |
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$id = $tree->getIdByPath('simpletemplate/prefilter'); |
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dumpHelper( array($tree->getPrevious($id)) , 'dump the "previous" of "simpletemplate/prefilter"' ); |
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// you can also use: $tree->data[$id]['previous'] |
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$id = $tree->getIdByPath('simpletemplate/preFilter'); |
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$element = $tree->data[$id]['child']['next']['next']; // refer to the third child of 'SimpleTemplate/preFilter/register' |
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dumpHelper( $element['id'] , 'demo of using the internal array, for referencing tree-nodes' ); |
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/* |
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NOT IMPLEMENTED YET |
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$id = $tree->getIdByPath('myElement/anotherSubElement'); |
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$tree->move( $id , 0 ); |
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$tree->setup(); // rebuild the structure again, since we had changed it |
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dumpAllNicely( 'dump all, after "myElement/anotherSubElement" was moved under the root' ); |
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$moveId = $tree->getIdByPath('myElement'); |
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$id = $tree->getIdByPath('anotherSubElement'); |
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$tree->move( $moveId , $id ); |
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$tree->setup(); // rebuild the structure again, since we had changed it |
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dumpAllNicely( 'dump all, after "myElement" was moved under the "anotherSubElement"' ); |
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$tree->setRemoveRecursively(true); |
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$tree->remove(0); |
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print '<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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*/ |
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?> |