From b5f83647d96adcbb9cd13e8427afd07218889211 Mon Sep 17 00:00:00 2001
From: "Collin M. Barrett" <collinbarrett@users.noreply.github.com>
Date: Mon, 20 Aug 2018 11:54:08 -0500
Subject: [PATCH] revert to using Contains()

Join() was super slow...
ref #357
---
 src/FilterLists.Services/Snapshot/Snapshot.cs      | 2 +-
 src/FilterLists.Services/Snapshot/SnapshotBatch.cs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/FilterLists.Services/Snapshot/Snapshot.cs b/src/FilterLists.Services/Snapshot/Snapshot.cs
index 1e6351e6e..e2857cf11 100644
--- a/src/FilterLists.Services/Snapshot/Snapshot.cs
+++ b/src/FilterLists.Services/Snapshot/Snapshot.cs
@@ -15,7 +15,7 @@ namespace FilterLists.Services.Snapshot
 {
     public class Snapshot
     {
-        private const int BatchSize = 250;
+        private const int BatchSize = 1000;
         private readonly FilterListsDbContext dbContext;
         private readonly FilterListViewUrlDto list;
         private readonly Data.Entities.Snapshot snapEntity;
diff --git a/src/FilterLists.Services/Snapshot/SnapshotBatch.cs b/src/FilterLists.Services/Snapshot/SnapshotBatch.cs
index a1af7099e..6272480b4 100644
--- a/src/FilterLists.Services/Snapshot/SnapshotBatch.cs
+++ b/src/FilterLists.Services/Snapshot/SnapshotBatch.cs
@@ -33,7 +33,7 @@ public async Task SaveAsync()
         }
 
         private IQueryable<Rule> GetExistingRules() =>
-            dbContext.Rules.Join(lines, rule => rule.Raw, line => line, (rule, line) => rule);
+            dbContext.Rules.Where(r => lines.Contains(r.Raw));
 
         private List<Rule> CreateNewRules(IQueryable<Rule> existingRules) =>
             lines.Except(existingRules.Select(r => r.Raw)).Select(r => new Rule {Raw = r}).ToList();