model(notify): make use of updated_at column on users

Author: crolbar

Diff for: src/models/NotifyModel.php

@@ -14,6 +14,7 @@ public static function update_fcm_device_token_for(string $sub, string $token):
         $query  = <<<SQL
         UPDATE users SET
         fcm_device_token = :token
+        updated_at       = CURRENT_TIMESTAMP
         WHERE
         sub = :sub
         SQL;
@@ -33,7 +34,9 @@ public static function get_fcm_device_token_for(string $id): string|bool
         $pdo    = Database::getConnection();
 
         $query  = <<<SQL
-        SELECT fcm_device_token, wants_notifications
+        SELECT
+            fcm_device_token,
+            wants_notifications
         FROM users
         WHERE id = :id
         SQL;
@@ -67,9 +70,11 @@ public static function update_notifications_for(string $sub, bool $wants_notific
         $pdo    = Database::getConnection();
 
         $query  = <<<SQL
-        UPDATE users
-        SET wants_notifications = :wants_notifications
-        WHERE sub = :sub
+        UPDATE users SET
+        wants_notifications = :wants_notifications
+        updated_at          = CURRENT_TIMESTAMP
+        WHERE
+        sub = :sub
         SQL;
 
         $stmt = $pdo->prepare($query);