(bug 15706) Empty values for apprtype and apprlevel are now silently ignored rather than causing an exception

2 files changed, 6 insertions, 3 deletions

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 0dc5d93cdd8c..9ea3c2986117 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -271,6 +271,8 @@ The following extensions are migrated into MediaWiki 1.14:
 * action=protect checks for invalid protection types and levels
 * (bug 15673) Added indentation to format=wddxfm output and improved built-in 
   WDDX formatter to resemble PHP's more
+* (bug 15706) Empty values for apprtype and apprlevel are now silently ignored
+  rather than causing an exception
 
 === Languages updated in 1.14 ===
 
diff --git a/includes/api/ApiQueryAllpages.php b/includes/api/ApiQueryAllpages.php
index 97f1c39e0aa9..b0f4759399d1 100644
--- a/includes/api/ApiQueryAllpages.php
+++ b/includes/api/ApiQueryAllpages.php
@@ -79,14 +79,15 @@ class ApiQueryAllpages extends ApiQueryGeneratorBase {
 		}
 
 		// Page protection filtering
-		if (isset ($params['prtype'])) {
+		if (!empty ($params['prtype'])) {
 			$this->addTables('page_restrictions');
 			$this->addWhere('page_id=pr_page');
 			$this->addWhere('pr_expiry>' . $db->addQuotes($db->timestamp()));
 			$this->addWhereFld('pr_type', $params['prtype']);
 
-			$prlevel = $params['prlevel'];
-			if (!is_null($prlevel) && $prlevel != '' && $prlevel != '*')
+			// Remove the empty string and '*' from the prlevel array
+			$prlevel = array_diff($params['prlevel'], array('', '*'));
+			if (!empty($prlevel))
 				$this->addWhereFld('pr_level', $prlevel);
 
 			$this->addOption('DISTINCT');