From 4262452ba4f9691c3410526f605273f0529a9377 Mon Sep 17 00:00:00 2001
From: benesjan <janbenes1234@gmail.com>
Date: Sun, 6 Dec 2020 16:23:28 -0600
Subject: [PATCH] Skipping snapshots when the user is null

---
 src/mappings/helpers.ts | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/mappings/helpers.ts b/src/mappings/helpers.ts
index e412c867..d88e1c58 100644
--- a/src/mappings/helpers.ts
+++ b/src/mappings/helpers.ts
@@ -174,11 +174,26 @@ export function createLiquiditySnapshot(position: LiquidityPosition, event: Ethe
   let token0 = Token.load(pair.token0)
   let token1 = Token.load(pair.token1)
 
+  let user = User.load(position.user)
+  if (user === null) {
+    log.error(
+      'Null user during snapshot creation. User id: '
+        .concat(position.user)
+        .concat(' position id: ')
+        .concat(position.id)
+        .concat(' tx hash: ')
+        .concat(event.transaction.hash.toHexString())
+        .concat(' --> SKIPPING SNAPSHOT CREATION'),
+      []
+    )
+    return
+  }
+
   // create new snapshot
   let id = position.id
-    .concat("-")
+    .concat('-')
     .concat(event.transaction.hash.toHexString())
-    .concat("-")
+    .concat('-')
     .concat(event.logIndex.toString())
   let snapshot = new LiquidityPositionSnapshot(id)
   snapshot.liquidityPosition = position.id