Check if attacker is not None before calling sorties.

There is a rare occurence in the logs where a bullet/shell EventHit happens,
but no attacker is present. Perhaps a plane shot then disconnected before
the hits registered?

changelog.txt

@@ -102,4 +102,8 @@ Version 2.3.0
 
 Version 2.3.1
 
-- Update to 1.2.57 of IL2 Stats.
+- Update to 1.2.57 of IL2 Stats.
+
+Version 2.3.2
+
+- Module Ammo breakdown: Fix rare bug where stats parser would crash if there was a hit registered in the DServer logs with a bullet/shell projectile that did not have an attacker.

readme.txt

@@ -5,7 +5,7 @@ Authors: =FEW=Revolves and Enigma89
 
 This is a mod for IL2 Stats, which adds and changes minor things to the IL2 stats websites. The mod is seperated into modules, which can be turned on and off so you can customize which of the features of the mod you wish to use. Descriptions of the modules follow.
 
-This version of the mod is compatible with version 1.2.57 of IL2 stats.
+This version of the mod is compatible with version 1.2.58 of IL2 stats.
 
 ------------ Modules which show new information ------------ 
 

src/mod_rating_by_type/report.py

@@ -261,9 +261,11 @@ def record_hits(tik, target, attacker, ammo):
     if attacker and attacker.coal_id == target.coal_id:
         return
 
-    sortie = attacker.sortie
-    if attacker.parent:
-        sortie = attacker.parent.sortie
+    sortie = None
+    if attacker is not None:
+        sortie = attacker.sortie
+        if attacker.parent:
+            sortie = attacker.parent.sortie
 
     if sortie:
         if not hasattr(sortie, 'ammo_breakdown'):