From: Antoine Musso <hashar@users.mediawiki.org>
Date: Mon, 16 Jan 2006 18:34:11 +0000 (+0000)
Subject: Fix #1122: "older revision" link displayed when viewing first revision of an article
X-Git-Tag: 1.6.0~510
X-Git-Url: http://git.cyclocoop.org/%24image?a=commitdiff_plain;h=88149ad3ae38aa4f0b3dc9cd32e3748252910970;p=lhc%2Fweb%2Fwiklou.git

Fix #1122: "older revision" link displayed when viewing first revision of an article
---

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 6908afcce4..7e0a465502 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -518,6 +518,7 @@ fully support the editing toolbar, but was found to be too confusing.
   For typical usage this will be a light burden and should reduce confusion
   when the configuration is edited.
 * Fix $wgCacheEpoch's effect on client-side caching.
+* (bug 1122) gray out 'older revision' when viewing first article revision.
 
 
 === Caveats ===
diff --git a/includes/Article.php b/includes/Article.php
index 82891fc7bc..66fbc2c700 100644
--- a/includes/Article.php
+++ b/includes/Article.php
@@ -2231,7 +2231,11 @@ class Article {
 	}
 
 	/**
-	 * @todo document this function
+	 * Generate the navigation links when browsing through an article revisions
+	 * It shows the information as:
+	 *   Revision as of <date>; view current revision
+	 *   <- Previous version | Next Version ->
+	 *
 	 * @access private
 	 * @param string $oldid		Revision ID of this article revision
 	 */
@@ -2244,7 +2248,10 @@ class Article {
 		$lnk = $current
 			? wfMsg( 'currentrevisionlink' )
 			: $lnk = $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'currentrevisionlink' ) );
-		$prevlink = $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'previousrevision' ), 'direction=prev&oldid='.$oldid );
+		$prev = $this->mTitle->getPreviousRevisionID( $oldid ) ;
+		$prevlink = $prev
+			? $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'previousrevision' ), 'direction=prev&oldid='.$oldid )
+			: wfMsg( 'previousrevision' );
 		$nextlink = $current
 			? wfMsg( 'nextrevision' )
 			: $sk->makeKnownLinkObj( $this->mTitle, wfMsg( 'nextrevision' ), 'direction=next&oldid='.$oldid );