From acad898f0518f64a331f3cf8269a29d9a9f8117b Mon Sep 17 00:00:00 2001
From: lens0021 <lorentz0021@gmail.com>
Date: Sat, 29 May 2021 06:42:55 +0900
Subject: [PATCH] Fix Call to a member function on null (Fix #39)

---
 specials/SpecialOrderedWhatLinksHere.php | 42 ++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/specials/SpecialOrderedWhatLinksHere.php b/specials/SpecialOrderedWhatLinksHere.php
index 0f9adfa..fba32ce 100644
--- a/specials/SpecialOrderedWhatLinksHere.php
+++ b/specials/SpecialOrderedWhatLinksHere.php
@@ -1,5 +1,8 @@
 <?php
 
+use MediaWiki\Cache\LinkBatchFactory;
+use MediaWiki\Content\IContentHandlerFactory;
+use Wikimedia\Rdbms\IDatabase;
 use Wikimedia\Rdbms\ILoadBalancer;
 
 /**
@@ -7,6 +10,45 @@
  */
 class SpecialOrderedWhatLinksHere extends SpecialWhatLinksHere {
 
+	/** @var ILoadBalancer */
+	private $loadBalancer;
+
+	/** @var LinkBatchFactory */
+	private $linkBatchFactory;
+
+	/** @var IContentHandlerFactory */
+	private $contentHandlerFactory;
+
+	/** @var SearchEngineFactory */
+	private $searchEngineFactory;
+
+	/** @var NamespaceInfo */
+	private $namespaceInfo;
+
+	/**
+	 * @inheritDoc
+	 */
+	public function __construct(
+		ILoadBalancer $loadBalancer,
+		LinkBatchFactory $linkBatchFactory,
+		IContentHandlerFactory $contentHandlerFactory,
+		SearchEngineFactory $searchEngineFactory,
+		NamespaceInfo $namespaceInfo
+	) {
+		parent::__construct(
+			$loadBalancer,
+			$linkBatchFactory,
+			$contentHandlerFactory,
+			$searchEngineFactory,
+			$namespaceInfo
+		);
+		$this->loadBalancer = $loadBalancer;
+		$this->linkBatchFactory = $linkBatchFactory;
+		$this->contentHandlerFactory = $contentHandlerFactory;
+		$this->searchEngineFactory = $searchEngineFactory;
+		$this->namespaceInfo = $namespaceInfo;
+	}
+
 	/**
 	 * Copied from REL1_36 without modification to replace private function showIndirectLinks.
 	 *