* to the original text of the edit.
*
* This difers from Article::getContent() that when a missing revision is
- * encountered the result will be an empty string and not the
+ * encountered the result will be null and not the
* 'missing-revision' message.
*
* @since 1.19
- * @return string
+ * @return Content|null
*/
private function getOriginalContent() {
if ( $this->section == 'new' ) {
$parserOptions = ParserOptions::newFromUser( $wgUser );
$content = $page->getContent( Revision::RAW );
+ if ( !$content ) {
+ return $handler->makeEmptyContent();
+ }
+
return $content->preloadTransform( $title, $parserOptions );
}
// This is the revision the editor started from
$baseRevision = $this->getBaseRevision();
- if ( is_null( $baseRevision ) ) {
+ $baseContent = $baseRevision ? $baseRevision->getContent() : null;
+
+ if ( is_null( $baseContent ) ) {
wfProfileOut( __METHOD__ );
return false;
}
- $baseContent = $baseRevision->getContent();
// The current state, we want to merge updates into it
$currentRevision = Revision::loadFromTitle( $db, $this->mTitle );
- if ( is_null( $currentRevision ) ) {
+ $currentContent = $currentRevision ? $currentRevision->getContent() : null;
+
+ if ( is_null( $currentContent ) ) {
wfProfileOut( __METHOD__ );
return false;
}
- $currentContent = $currentRevision->getContent();
$handler = ContentHandler::getForModelID( $baseContent->getModel() );
$this->section, $textboxContent,
$this->summary, $this->edittime );
- ContentHandler::runLegacyHooks( 'EditPageGetDiffText', array( $this, &$newContent ) );
- wfRunHooks( 'EditPageGetDiffContent', array( $this, &$newContent ) );
+ if ( $newContent ) {
+ ContentHandler::runLegacyHooks( 'EditPageGetDiffText', array( $this, &$newContent ) );
+ wfRunHooks( 'EditPageGetDiffContent', array( $this, &$newContent ) );
- $popts = ParserOptions::newFromUserAndLang( $wgUser, $wgContLang );
- $newContent = $newContent->preSaveTransform( $this->mTitle, $wgUser, $popts );
+ $popts = ParserOptions::newFromUserAndLang( $wgUser, $wgContLang );
+ $newContent = $newContent->preSaveTransform( $this->mTitle, $wgUser, $popts );
+ }
if ( ( $oldContent && !$oldContent->isEmpty() ) || ( $newContent && !$newContent->isEmpty() ) ) {
$oldtitle = wfMessage( $oldtitlemsg )->parse();
$newtitle = wfMessage( 'yourtext' )->parse();
+ if ( !$oldContent ) {
+ $oldContent = $newContent->getContentHandler()->makeEmptyContent();
+ }
+
+ if ( !$newContent ) {
+ $newContent = $oldContent->getContentHandler()->makeEmptyContent();
+ }
+
$de = $oldContent->getContentHandler()->createDifferenceEngine( $this->mArticle->getContext() );
$de->setContent( $oldContent, $newContent );