ApiEditPage: Show existing watchlist expiry if status is not being changed.

Bug: T261030
Change-Id: I795db12aefeffb1cfbbe2ab00fbb19444df7d37b

1 files changed, 26 insertions, 0 deletions

diff --git a/includes/api/ApiWatchlistTrait.php b/includes/api/ApiWatchlistTrait.php
index 675414e3c8da..1ab84d48afb1 100644
--- a/includes/api/ApiWatchlistTrait.php
+++ b/includes/api/ApiWatchlistTrait.php
@@ -140,4 +140,30 @@ trait ApiWatchlistTrait {
 
 		return $watchlistExpiry;
 	}
+
+	/**
+	 * Get existing expiry from the database.
+	 *
+	 * @param WatchedItemStoreInterface $store
+	 * @param Title $title
+	 * @param User $user The user to get the expiry for.
+	 * @return string|null
+	 */
+	protected function getWatchlistExpiry(
+		WatchedItemStoreInterface $store,
+		Title $title,
+		User $user
+	): ?string {
+		$watchedItem = $store->getWatchedItem( $user, $title );
+
+		if ( $watchedItem ) {
+			$expiry = $watchedItem->getExpiry();
+
+			if ( $expiry !== null ) {
+				return ApiResult::formatExpiry( $expiry );
+			}
+		}
+
+		return null;
+	}
 }