From: Aaron Schulz <aaron@users.mediawiki.org>
Date: Sat, 10 Mar 2007 23:03:24 +0000 (+0000)
Subject: * Enable multi-edit undo (bug 8133)
X-Git-Tag: 1.31.0-rc.0~53813
X-Git-Url: http://git.cyclocoop.org/fichier?a=commitdiff_plain;h=f35f38276b25f5bab8dcad1c435a16f86d677209;p=lhc%2Fweb%2Fwiklou.git

* Enable multi-edit undo (bug 8133)
---

diff --git a/includes/DifferenceEngine.php b/includes/DifferenceEngine.php
index e6218b6d9c..884e82a6e0 100644
--- a/includes/DifferenceEngine.php
+++ b/includes/DifferenceEngine.php
@@ -546,21 +546,17 @@ CONTROL;
 			$newLink = $this->mNewPage->escapeLocalUrl();
 			$this->mPagetitle = htmlspecialchars( wfMsg( 'currentrev' ) );
 			$newEdit = $this->mNewPage->escapeLocalUrl( 'action=edit' );
-			$newUndo = $this->mNewPage->escapeLocalUrl( 'action=edit&undo=' . $this->mNewid );
 
 			$this->mNewtitle = "<a href='$newLink'>{$this->mPagetitle}</a> ($timestamp)"
-				. " (<a href='$newEdit'>" . htmlspecialchars( wfMsg( 'editold' ) ) . "</a>)"
-				. " (<a href='$newUndo'>" . htmlspecialchars( wfMsg( 'editundo' ) ) . "</a>)";
+				. " (<a href='$newEdit'>" . htmlspecialchars( wfMsg( 'editold' ) ) . "</a>)";
 
 		} else {
 			$newLink = $this->mNewPage->escapeLocalUrl( 'oldid=' . $this->mNewid );
 			$newEdit = $this->mNewPage->escapeLocalUrl( 'action=edit&oldid=' . $this->mNewid );
-			$newUndo = $this->mNewPage->escapeLocalUrl( 'action=edit&undo=' . $this->mNewid );
 			$this->mPagetitle = htmlspecialchars( wfMsg( 'revisionasof', $timestamp ) );
 
 			$this->mNewtitle = "<a href='$newLink'>{$this->mPagetitle}</a>"
-				. " (<a href='$newEdit'>" . htmlspecialchars( wfMsg( 'editold' ) ) . "</a>)"
-				. " (<a href='$newUndo'>" . htmlspecialchars( wfMsg( 'editundo' ) ) . "</a>)";
+				. " (<a href='$newEdit'>" . htmlspecialchars( wfMsg( 'editold' ) ) . "</a>)";
 		}
 
 		// Load the old revision object
@@ -591,6 +587,9 @@ CONTROL;
 			$oldEdit = $this->mOldPage->escapeLocalUrl( 'action=edit&oldid=' . $this->mOldid );
 			$this->mOldtitle = "<a href='$oldLink'>" . htmlspecialchars( wfMsg( 'revisionasof', $t ) )
 				. "</a> (<a href='$oldEdit'>" . htmlspecialchars( wfMsg( 'editold' ) ) . "</a>)";
+			//now that we considered old rev, we can make undo link (bug 8133, multi-edit undo)
+			$newUndo = $this->mNewPage->escapeLocalUrl( 'action=edit&undoafter=' . $this->mOldid . '&undoto=' . $this->mNewid);
+			$this->mNewtitle .= " (<a href='$newUndo'>" . htmlspecialchars( wfMsg( 'editundo' ) ) . "</a>)";
 		}
 
 		return true;
diff --git a/includes/EditPage.php b/includes/EditPage.php
index 1c16dc2b5e..0b9a476b00 100644
--- a/includes/EditPage.php
+++ b/includes/EditPage.php
@@ -73,7 +73,8 @@ class EditPage {
 		# Get variables from query string :P
 		$section = $wgRequest->getVal( 'section' );
 		$preload = $wgRequest->getVal( 'preload' );
-		$undo = $wgRequest->getVal( 'undo' );
+		$undoafter = $wgRequest->getVal( 'undoafter' );
+		$undoto = $wgRequest->getVal( 'undoto' );
 
 		wfProfileIn( __METHOD__ );
 
@@ -98,24 +99,21 @@ class EditPage {
 
 			$text = $this->mArticle->getContent();
 
-			if ( $undo > 0 ) {
+			if ( $undoafter > 0 && $undoto > $undoafter ) {
 				#Undoing a specific edit overrides section editing; section-editing
 				# doesn't work with undoing.
-				$undorev = Revision::newFromId($undo);
-				$oldrev = $undorev ? $undorev->getPrevious() : null;
+				$undorev = Revision::newFromId($undoto);
+				$oldrev = Revision::newFromId($undoafter);
 
 				#Sanity check, make sure it's the right page.
 				# Otherwise, $text will be left as-is.
-				if( !is_null($undorev)
-					&& !is_null( $oldrev )
-					&& $undorev->getPage() == $this->mArticle->getID() ) {
-					
+				if ( !is_null($undorev) && !is_null($oldrev) && $undorev->getPage()==$oldrev->getPage() && $undorev->getPage()==$this->mArticle->getID() ) {
 					$undorev_text = $undorev->getText();
-					$oldrev_text = $oldrev->getText();
-					$currev_text = $text;
+                    $oldrev_text = $oldrev->getText();
+                    $currev_text = $text;
 
 					#No use doing a merge if it's just a straight revert.
-					if ($currev_text != $undorev_text) {
+					if ( $currev_text != $undorev_text ) {
 						$result = wfMerge($undorev_text, $oldrev_text, $currev_text, $text);
 					} else {
 						$text = $oldrev_text;
@@ -131,21 +129,24 @@ class EditPage {
 				if( $result ) {
 					# Inform the user of our success and set an automatic edit summary
 					$this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-success' ) );
-					$this->summary = wfMsgForContent( 'undo-summary', $undo, $undorev->getUserText() );
+					$firstrev = $oldrev->getNext();
+					# If we just undid one rev, use an autosummary
+					if ( $firstrev->mId == $undoto ) {
+							$this->summary = wfMsgForContent('undo-summary', $undoto, $undorev->getUserText());
+					}
 					$this->formtype = 'diff';
 				} else {
 					# Warn the user that something went wrong
 					$this->editFormPageTop .= $wgOut->parse( wfMsgNoTrans( 'undo-failure' ) );
 				}
-			}
-			else if( $section != '' ) {
-				if( $section == 'new' ) {
-					$text = $this->getPreloadedText( $preload );
-				} else {
-					$text = $wgParser->getSection( $text, $section );
-				}
+		} else if( $section != '' ) {
+			if( $section == 'new' ) {
+				$text = $this->getPreloadedText( $preload );
+			} else {
+				$text = $wgParser->getSection( $text, $section );
 			}
 		}
+	}
 
 		wfProfileOut( __METHOD__ );
 		return $text;