1 files changed, 100 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/pagers/MergeHistoryPager.php b/www/wiki/includes/specials/pagers/MergeHistoryPager.php
new file mode 100644
index 00000000..6a8f7da7
--- /dev/null
+++ b/www/wiki/includes/specials/pagers/MergeHistoryPager.php
@@ -0,0 +1,100 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup Pager
+ */
+
+/**
+ * @ingroup Pager
+ */
+class MergeHistoryPager extends ReverseChronologicalPager {
+
+	/** @var SpecialMergeHistory */
+	public $mForm;
+
+	/** @var array */
+	public $mConds;
+
+	function __construct( SpecialMergeHistory $form, $conds, Title $source, Title $dest ) {
+		$this->mForm = $form;
+		$this->mConds = $conds;
+		$this->title = $source;
+		$this->articleID = $source->getArticleID();
+
+		$dbr = wfGetDB( DB_REPLICA );
+		$maxtimestamp = $dbr->selectField(
+			'revision',
+			'MIN(rev_timestamp)',
+			[ 'rev_page' => $dest->getArticleID() ],
+			__METHOD__
+		);
+		$this->maxTimestamp = $maxtimestamp;
+
+		parent::__construct( $form->getContext() );
+	}
+
+	function getStartBody() {
+		# Do a link batch query
+		$this->mResult->seek( 0 );
+		$batch = new LinkBatch();
+		# Give some pointers to make (last) links
+		$this->mForm->prevId = [];
+		$rev_id = null;
+		foreach ( $this->mResult as $row ) {
+			$batch->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
+			$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->user_name ) );
+
+			if ( isset( $rev_id ) ) {
+				if ( $rev_id > $row->rev_id ) {
+					$this->mForm->prevId[$rev_id] = $row->rev_id;
+				} elseif ( $rev_id < $row->rev_id ) {
+					$this->mForm->prevId[$row->rev_id] = $rev_id;
+				}
+			}
+
+			$rev_id = $row->rev_id;
+		}
+
+		$batch->execute();
+		$this->mResult->seek( 0 );
+
+		return '';
+	}
+
+	function formatRow( $row ) {
+		return $this->mForm->formatRevisionRow( $row );
+	}
+
+	function getQueryInfo() {
+		$conds = $this->mConds;
+		$conds['rev_page'] = $this->articleID;
+		$conds[] = "rev_timestamp < " . $this->mDb->addQuotes( $this->maxTimestamp );
+
+		$revQuery = Revision::getQueryInfo( [ 'page', 'user' ] );
+		return [
+			'tables' => $revQuery['tables'],
+			'fields' => $revQuery['fields'],
+			'conds' => $conds,
+			'join_conds' => $revQuery['joins']
+		];
+	}
+
+	function getIndexField() {
+		return 'rev_timestamp';
+	}
+}