Location: PHPKode > projects > WikyBlog > include/tool/History1.php
<?php
defined('WikyBlog') or die("Not an entry point...");

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					HISTORY INSTRUCTIONS
//

function run_Instructions_main($source,$instructions){
	
	$test = trim($instructions);
	if( empty($test) ){
		return $source;
	}
	
	//	1)	Set sourceArray
	$type = null;
	if( is_object($source) ){
		//$type = get_class( $source );
		$resultArray = get_object_vars( $source );
	}else{
		$resultArray = $source;
	}
	
	//	2)	Prep Instructions
	if( function_exists('gzinflate') ){
		$inflated = @gzinflate($instructions);
		if( $inflated !== false){
			$instructions = $inflated;
		}
	}
	$instructions = unserialize($instructions);

	// message(showArray($resultArray) );
	// message(showArray($instructions) );
	
	//	3)	Run Instruction For each Key
	if( is_array($instructions) ){
		foreach($instructions as $key => $instruction){
			$resultArray[$key] = run_Instructions($resultArray[$key],$instruction);
		}
	}
	
	return $resultArray;
}

function run_Instructions($source,$instructions){
	
	if( is_string($instructions) ){
		return $instructions;
	}else{
		$source = stringToArray($source);
	}
	
	// message(showArray($source) );
	// message(showArray($instructions) );
	
	
	////////////////////////////////////////////////////////////////////////////////
	//
	//		I)	Prepare addRight and deleteLeft
	//
	//	1)	Delete/Add
	if( isset($instructions['d']) ){
		$deleteLeft = $instructions['d'];
	}
	if( isset($instructions['a']) ){
		$addRight = $instructions['a'];
	}
	
	
	//	2)	Replace => Delete/Add
	if( !empty($instructions['r']) ){
		foreach($instructions['r'] as $replaceKey => $with){
			$deleteLeft[$replaceKey] = '';
			foreach($with as $withKey => $withValue){
				$addRight[$replaceKey][$withKey] = $withValue;
			}
		}
	}
	
	//	3) Move => Delete/Add
	if( !empty($instructions['m']) ){
		$move = $instructions['m'];
		foreach($move as $from => $to){
			$deleteLeft[$from] = '';
			list($leftIndex,$rightIndex) = explode('.',$to);
			$addRight[$leftIndex][$rightIndex] = $source[$from];
		}
	}
		
	// 	echo '<table><tr>';
	// 	echo '<td style="vertical-align:top">Move<br />';
	// 	echo showArray($move);
	// 	echo '</td><td style="vertical-align:top">Delete<br />';
	// 	echo showArray($deleteLeft);
	// 	echo '</td><td style="vertical-align:top">Add<br />';
	// 	echo showArray($addRight);
	// 	echo '</td></table>';
	
	
	//message(showArray($addRight) );
	
	////////////////////////////////////////////////////////////////////////////////
	//
	//		II)	Apply add and delete
	//			i)			reverse array
	//			ii)			line by line
	//				iia)		delete
	//				iib)		add
	//			iii)		reverse array
	//
	
	krsort($source); 
	//message( showArray($source) );
	
	foreach($source as $sourceKey => $sourceValue){
		
		//$message = $sourceKey;
		if( !isset($deleteLeft[$sourceKey]) ){
			//$finalText[$sourceKey] = $source[$sourceKey];// wrong, just treat it as a stack,
										// otherwise it could result in writing over adds, 
			$finalText[] = $source[$sourceKey];
			//$message .= ' Leave: '.wbHtmlspecialchars($source[$sourceKey]);
		}else{
			//$message .= ' Delete: '.wbHtmlspecialchars($source[$sourceKey]);
		}
		//message($message);
		
		if( isset($addRight[$sourceKey]) ){
			krsort($addRight[$sourceKey]); // sort because of additions to addRight from move
											// krsort() because we're going backwards
			$add = array();
			foreach($addRight[$sourceKey] as $key => $addLine){
				$finalText[] = $addLine;
			}
		}
	}
	
	$finalText = array_reverse($finalText);
	
	// For additional added lines
	$nextIndex = count($source);
	if( isset($addRight[$nextIndex]) ){
		foreach($addRight[$nextIndex] as $key => $addLine){
			$finalText[] = $addLine;
		}
	}
	
	
	return implode("\n",$finalText);
}

//
//					HISTORY INSTRUCTIONS
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					SINGLE REVISIONS
//
//		$rowLimit could be used to limit the the number of rows to 1
//			- this could be useful with the xmlHTTP saving where history elements will constantly be overwritten
//		$user
//			- limit the revisions to the user
//			- this was a bit of a hack?... and I'm not using it any more


function getRevision($revNum,&$object){
	global $dbObject,$wbTables;
	
	if( wbStrtolower($revNum) != $object->revision){
		
		if( !is_numeric($revNum) ){
			message('INVALID_REVISION');
			return false;
		}
		$query = ' SELECT * FROM '.$wbTables['all_history'].' WHERE ';
		$query .= ' `file_id` = '.$object->file_id;
		$query .= ' AND `revision` >= '.$revNum;
		if( wbStrtolower($object->revision) != 'current'){
			$query .= ' AND `revision` < '.$object->revision;
		}
		$query .= ' AND `modified` != "'.$object->modified.'" '; //we don't want the placeholder
		$query .= ' ORDER BY `revision` DESC';
		//$query .= ' LIMIT 100 OFFSET 1';	//we don't want the first one, it's just a place holder
											//then just use a limit of 100
		
		
		$result = wbDB::runQuery($query);
		$num = mysql_num_rows($result);
		if($num == 0){
			//this just means we've selected the current placeholder
			//message('NO_UNIQUE_REVISION');
			return;
		}
		applyRevisionRows($result,$object);
	}
	
}// end function

//nearly the same as above function other than this selects the lates revision using LIMIT 1
function getLastRevision(&$object,$checkTime=false){
	global $wbTables;
	
	if(!$object->exists){
		return false;
	}
		
	
	$query = ' SELECT * FROM '.$wbTables['all_history'].' WHERE ';
	$query .= ' `file_id` = '.$object->file_id;
	$query .= ' AND `revision` > 0';
	$query .= ' ORDER BY `revision` DESC';
	$query .= ' LIMIT 1 OFFSET 1 ';
	
	$result = wbDB::runQuery($query);
	$num = mysql_num_rows($result);
	if( $num == 0 ){
		return false;
	}
	$row = mysql_fetch_object($result);
	
	if( $checkTime !== false ){
		if( $_SESSION['editPage'][$object->uniqStorage] != $row->modified ){
			return false;
		}
	}

	applyRevisionRow(&$row,&$object);

	return true;
}
function applyRevisionRows(&$result,&$object){
	
	while($row = mysql_fetch_object($result) ){
		applyRevisionRow(&$row,&$object);
		
// 		unset($temp2);
// 		$temp2 = run_Instructions_main($object,$row->instructions);
// 		$object->setVariables($temp2,$object->userValues);
// 		
// 		//must set these values because they aren't part of ->userValues
// 		$object->revision = $row->revision;
// 		$object->modified = $row->modified;
// 		$object->summary = $row->summary;
// 		$object->username = $row->username;
// 		$object->ip = $row->ip;
// 		
// 		//
// 		$object->distanceToCurrent++;
	}	
}

function applyRevisionRow(&$row,&$object){
	$temp2 = run_Instructions_main($object,$row->instructions);
	
	$keys = $object->userValues + $object->dbValues;
	$object->setVariables($temp2,$keys);
	//$object->setVariables($temp2,$object->userValues);
	
	//must set these values because they aren't part of ->userValues
	$object->revision = $row->revision;
	$object->modified = $row->modified;
	$object->summary = $row->summary;
	$object->username = $row->username;
	$object->ip = $row->ip;
	
	//
	$object->distanceToCurrent++;	
}
	
	






function showRevision($link=false){
	global $page,$dbObject,$langA;
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	$revNum = (int)$_GET['revNum'];
	getRevision($revNum,$dbObject);
	
	if( !$dbObject){
		return false;
	}
	
	$title = $langA['revision'].$dbObject->revision;
	$revLink = '/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$revNum;
	$page->regLink($title,$revLink);
	
	//!! this isn't quite right... how do we know that the message will be on the right tab..
	$message = $langA['revision_as_of'].dbFromDate($dbObject->modified,3);
	$message .= ' - ';
	if( $link ){
		$message .= $link;
	}else{
		$message .= wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=editRevision&revNum='.$revNum,$langA['edit_revision']);
		if( isOwner() ){
			$message .= ' - ';
			$message .= wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=RevertEdit&revNum='.$revNum,$langA['revert_to_revision']);
		}
	}
	
	//previous|next links
	$showLinks = array();
	if( $dbObject->revision > 1){
		$prevNum = $dbObject->revision-1;
		$showLinks[] = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$prevNum,wbLang::text('show_prev_revision',$prevNum));
	}
	
	if($dbObject->distanceToCurrent === 1){
		$showLinks[] = wbLinks::local($dbObject->uniqLink,'current_revision');
	}else{
		$nextNum = ($dbObject->revision+1);
		$showLinks[] = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$nextNum,wbLang::text('show_next_revision',$nextNum));
	}
	if(count($showLinks) > 0){
		$message .= '<br/><span class="sm">'.implode(' | ',$showLinks).'</span>';
	}
	
	message($message);
	
	//	an older version might not be safe and history tables don't store that data
	//	so we just assume older versions aren't 'safe'
	if( strpos($dbObject->flags,'safe') !== false ){
		$dbObject->flags = str_replace('safe','',$dbObject->flags);
	}
	
	$dbObject->outputObj($revLink);
	$dbObject->addFooter($revLink);
	
}//end function


function showDeleted(){
	global $page,$dbObject,$langA,$wbTables;
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	$revNum =& $_GET['revNum'];
	if( !is_numeric($revNum) ){
		message('INVALID_REVISION');
		return false;
	}
	
	message('langA["deleted"]');
	$langA['deleted'] = 'Deleted';
	
	$title = $langA['deleted'];
	$link = $page->regLink($title, '/Edit'.$dbObject->uniqLink. '?cmd=deleted&revNum='.$revNum);

	
	//get history rows
	$query = ' SELECT `instructions`,`revision` FROM '.$wbTables['all_history'].' WHERE ';
	$query .= ' `file_id` = '.$dbObject->file_id;
	$query .= ' AND `revision` >= '.$revNum;
	if( wbStrtolower($dbObject->revision) != 'current'){
		$query .= ' AND `revision` < '.$dbObject->revision;
	}
	$query .= ' AND `modified` != "'.$dbObject->modified.'" '; //we don't want the placeholder
	$query .= ' ORDER BY `revision` DESC';
	$result = wbDB::runQuery($query);
	//$num = mysql_num_rows($result);
	
	ob_start();
	while($row = mysql_fetch_assoc($result)){
		
		$instructions =& $row['instructions'];
		
		if( function_exists('gzinflate') ){
			$inflated = @gzinflate($instructions);
			if( $inflated !== false){
				$instructions = $inflated;
			}
		}
		$instructions = unserialize($instructions);

		
		echo '<h3>'.$langA['revision'].': '.$row['revision'].'</h3>';
		foreach($row['instructions'] as $area => $areaInstruct){
			showDeletedRevision($area,$areaInstruct);
		}
		
	}
	$page->contentB[$link] = wb::get_clean();
}

function showDeletedRevision(&$area,&$instructions){
	$deleted = array();
	
	echo showArray($instructions);
	if( isset($instructions['a']) ){
		foreach($instructions['a'] as $lines){
			$deleted += $lines;
		}
	}
	if( isset($instructions['r']) ){
		foreach($instructions['r'] as $lines){
			$deleted += $lines;
		}
	}
	
	if( count($deleted) > 0 ){
		echo '<h4>deleted from '.$area.'</h4>';
		echo showarray($lines);
	}
	
}



//	Edit an older version, saving will make it the current version
//
//		for this to pass the check in toolSavePage.php it needs to have the current `modified` value
//		so I store `modified` in $mod then reassign it to $dbObject after getRevision();
//
function editRevision(){
	global $page,$dbObject,$langA;
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}

	$mod = $dbObject->modified;
	getRevision($_GET['revNum'],$dbObject);
	if( !$dbObject){
		return false;
	}
	$dbObject->modified = $mod;

	
	$_POST['summary'] = $langA['reverted_to_rev'].$_GET['revNum'];
	
	
	message('EDITING_REVISION');
	includeFile('tool/EditPage.php');
	initEdit::init();
	
}//end function

function RevertEdit($revNum){
	global $page,$dbObject,$langA;
	
	if( !isOwner() ){
		message('NOT_OWNER');
		return;
	}
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	$newObject = php4_clone($dbObject);
	
	getRevision($revNum,$newObject);
	if( !$newObject){
		return false;
	}
	$_POST['summary'] = $langA['reverted_to_rev'].$_GET['revNum'];
		
	includeFile('tool/SavePage.php',false);
	if( objectSave::saveControl($dbObject, $newObject) ){
		//message('SAVED_FILE');
		message($_POST['summary']);
	}else{
		message('00PS');
	}
}



//
//					SINGLE REVISIONS
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					COMPARISON
//

function compareRevisions(){
	global $page,$dbObject;
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	
	if( isset($_GET['revNum1']) ){
		$revNum1 = $_GET['revNum1'];
		$revNum2 = $page->cmdArg[0];
	}else{
		$revNum1 = $_GET['rev1'];
		$revNum2 = $_GET['rev2'];
	}
	
	////////	1)	Make sure times are set
		if( empty($revNum1) || empty($revNum2) ){
			message('SELECT_TWO_VERSIONS');
			return;
		}elseif( $revNum1 == $revNum2){
			message('SELECT_TWO_VERSIONS');
			return;
		}
	
	
	////////	2)	Find Min and Max times => get their events
		if( (wbStrtolower($revNum1) == 'current') ){
			$max = $revNum1;
			$min = $revNum2;
		}else{
			$max = max($revNum1,$revNum2);
			$min = min($revNum1,$revNum2);
		}
		
		getRevision($max,$dbObject);
		$newObject = php4_clone($dbObject);
		
		if( !$newObject){
			return false;
		}
		
		getRevision($min,$dbObject);
		if( !$dbObject){
			return false;
		}
	
	////////	Do Comparison
		compareTwo($dbObject,$newObject);
}

function compareTwo(&$oldObject,&$newObject,$title='',$oldHeader=false,$newHeader=false){
	global $page,$dbObject,$langA,$diffClasses;

	$isOwner = isOwner();
	$page->css2 = true;
	includeFile('tool/DifferenceEngine.php');
	ob_start();
	
	
	if( empty($title) ){
		if( $newObject->revision == 'current'){
			$temp = $langA['current'];
		}else{
			$temp = $newObject->revision;
		}
		$title = toDisplay($dbObject->title).' ('.$oldObject->revision.$langA['vs'].$temp.')';
		$page->displayTitle = $title;
	}else{
		$page->displayTitle .= ' ('. $title.')';
	}
	
	if( $oldObject->distanceToCurrent === 1){
		$title = $langA['diff'];
		$link = $page->regLink($title, '/Edit'.$dbObject->uniqLink.'?cmd=difference');	//for compatibility with changelog links
	}elseif($oldObject->distanceToCurrent == 0){
		//case when comparing current changes
	}else{
		$link = $page->regLink($title, '/Edit'.$dbObject->uniqLink.'?cmd=compare&rev1='.$oldObject->revision.'&rev2='.$newObject->revision);
	}
	
	
	//Top of Differences
	//
	//
	echo '<table cellspacing="3" cellpadding="1" border="0" width="98%">';
	echo '<tr><td></td><td style="text-align:center;width:50%">';
	
		//	Old Header
		//
		$editLink = false;
		if( $oldHeader ){
			echo $oldHeader;
		}else{
			if( $oldObject->revision == 'current'){
				echo '<h4 class="heading">'.wbLinks::local($dbObject->uniqLink,$langA['current_revision']).'</h4>';
			}else{	
				echo '<h4 class="heading">';
				$temp = wbLang::text('revision_num_as_of',$oldObject->revision,dbFromDate($oldObject->modified,3));
				echo wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$oldObject->revision,$temp);
				echo '</h4>';
				
				$editLink = $page->findLink($dbObject->editLabel);
				if( strpos($editLink,'javascript:') !== 0){
					$editLink = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=editRevision&revNum='.$oldObject->revision,$langA['edit_revision']);
					if( $isOwner ){
						$editLink .= ' - ';
						$editLink .= wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=RevertEdit&revNum='.$oldObject->revision,$langA['revert_to_revision']);
					}					
					
				}else{
					$editLink = false;
				}
			}
			
			if( !empty($oldObject->username) ){
				echo wbLinks::user($oldObject->username);
				$user = $oldObject->username;
			}else{
				echo $oldObject->ip;
				$user = $oldObject->username;
			}
			if( isset($_SESSION['username']) && ($_SESSION['username'] != $user) ){
				echo ' <span class="sm">('.wbLinks::special('Permissions?guest='.$user,'user permissions','title="'.$langA['SET_USER_PERMISSIONS'].$user.'"',$_SESSION['username']).')</span> ';
			}
			echo '<br/>&nbsp;'.$oldObject->summary;
			
			if( $editLink ){
				echo '<br/><span class="sm">'.$editLink.'</span>';
			}
			
			if( $oldObject->revision > 1){
				echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=compare&rev1='.($oldObject->revision-1).'&rev2='.$oldObject->revision,$langA['compare_with_prev']).' </span>';
			}elseif($oldObject->revision == 'current'){
				echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=difference',$langA['compare_with_prev']).' </span>';
			}
		}
		
		
	echo '</td><td></td>';
	echo '<td style="text-align:center;width:50%">';
	
		//	New Header
		//
		$editLink = false;
		if( $newHeader ){
			echo $newHeader;
			
		}else{
	
			if( $newObject->revision == 'current'){
				echo '<h4 class="heading">'.wbLinks::local($dbObject->uniqLink,$langA['current_revision']).'</h4>';
			}else{	
				echo '<h4 class="heading">';
				$temp = wbLang::text('revision_num_as_of',$newObject->revision,dbFromDate($newObject->modified,3));
				echo wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=show&revNum='.$newObject->revision,$temp);
				echo '</h4>';
				
				$editLink = $page->findLink($dbObject->editLabel);
				if( strpos($editLink,'javascript:') !== 0){
					$editLink = wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=editRevision&revNum='.$newObject->revision,$langA['edit_revision']);
					if( $isOwner ){
						$editLink .= ' - ';
						$editLink .= wbLinks::local('/Edit'.$dbObject->uniqLink.'?cmd=RevertEdit&revNum='.$newObject->revision,$langA['revert_to_revision']);
					}					
					
				}else{
					$editLink = false;
				}
			}
			
			
			if( !empty($newObject->username) ){
				echo wbLinks::user($newObject->username);
				$user = $newObject->username;
			}else{
				echo $newObject->ip;
				$user = $newObject->ip;
			}
			if( isset($_SESSION['username']) && ($_SESSION['username'] != $user) ){
				echo ' <span class="sm">('.wbLinks::special('Permissions?guest='.$user,'user permissions','title="'.$langA['SET_USER_PERMISSIONS'].$user.'"',$_SESSION['username']).')</span> ';
			}
			
			echo '<br/>&nbsp;'.$newObject->summary;
			
			if( $editLink ){
				echo '<br/><span class="sm">'.$editLink.'</span>';
			}
		
			
			if( $newObject->distanceToCurrent > 0){
				if( $newObject->distanceToCurrent === 1){
					echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$newObject->uniqLink.'?cmd=difference',$langA['compare_with_next']).' </span>';	
				}else{
					echo '<br/><span class="sm">'.wbLinks::local('/Edit'.$newObject->uniqLink.'?cmd=compare&rev1='.$newObject->revision.'&rev2='.($newObject->revision+1),$langA['compare_with_next']).' </span>';
				}
			}
		}
	echo '</td></tr>';
	
	
	//
	//	New Difference
	//
	
	$diffClasses['context'] = 'historyNeut';
	$diffClasses['deletedline'] = 'historyDelete';
	$diffClasses['addedline'] = 'historyAdd';
	$diffClasses['diffchange'] = 'historyChange';	
	$formatter = new TableDiffFormatter();

		
	$i= 0;
	foreach($oldObject->userValues as $key => $nothing){
		
		//	We don't want to show difference when comparing NULL with '' (empty string)
		//	NULL != '' also works
		//
		// if( getType($oldObject->$key) == 'NULL'){
		// 	$oldObject->$key = '';
		// }
		// if( getType($newObject->$key) == 'NULL'){
		// 	$newObject->$key = '';
		// }
		
		if( $oldObject->$key == $newObject->$key){
			continue;
		}
		$i++;
		echo '<tr><td colspan="4">';
		echo '<h3 class="heading underline">';
		if( isset($langA[$key]) ){
			echo $langA[$key];
		}else{
			echo $key;
		}
		echo '</h3>';
		
		echo '</td></tr>';
		
		$oldArray = stringToArray($oldObject->$key);
		$newArray = stringToArray($newObject->$key);
		$diffs = new Diff( $oldArray,$newArray );
		echo $formatter->format( $diffs );
	}
	if( $i === 0){
		echo '<tr><td colspan="4" style="text-align:center">'.$langA['NO_DIFFERENCES'].'</td></tr>';
	}
	echo '</table>';
	
	if( isset($link) ){
		$page->contentB[$link] = wb::get_clean();
	}else{
		$page->contentA[$title] = wb::get_clean();
	}
}


function getLastDifference(){
	global $page, $dbObject,$langA;
	
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	$current = php4_clone($dbObject);
	
	if( !getLastRevision($dbObject) ){
		message('NO_REVISIONS');
		return false;
	}
	
	compareTwo($dbObject,$current,$langA['diff']);
}


function showLines($array){
	
	$text = '<table border="0" cellpadding="7" ><tr><td><b>'.$langA['lines'].'</b></td><td><b>'.$langA['text'].'</b></td>';
	
	$odd = null;
	foreach($array as $key => $value){
		$text .= "\n";
		
		if( isset($odd) ){
			unset($odd);
		}else{
			$odd = ' class="row2" ';
		}
		$text .= "<tr $odd><td>";
		$text .= $key;
		$text .= '</td><td>';
		$text .= wbHtmlspecialchars($value);
		$text .= '</td></tr>';
	}
	$text .= '</table>';
	return $text;	
}

//this needs toolEditPage if it's not an xmlHttp request
function showChanges(){
	global $dbObject,$langA;
	
	if( !$dbObject->exists ){
		message('FILE_MUST_EXIST');
		return false;
	}
	
	$current = php4_clone($dbObject);
	
	$dbObject->setFromPost();
	compareTwo($current,$dbObject,$langA['changes'],false,$langA['your_text'] );
	
	if( !isset($_GET['wb']) ){
		includeFile('tool/EditPage.php');
		initEdit::init();
	}
	
}

//
//					COMPARISON
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//					FLOW CONTROL
//


global $langA;
switch( $page->userCmd ){
	
	case 'changes':
	case wbStrtolower($langA['changes']):
		showChanges();
	break;
	
	case 'compare':
	case wbStrtolower($langA['compare']);
	case 'compare versions':
		compareRevisions();
	break;
	
	case 'editrevision':
		editRevision();
	break;
	case 'revertedit':
		RevertEdit($_GET['revNum']);
	break;
	
	case 'show':
	case 'revision':
		showRevision();
	break;
	
	case 'difference':
		getLastDifference();
	break;
	
	case 'deleted';
		showDeleted();
	break;
	
}


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