From 3f83b6edf2e5f0b3d20a1f0797673fc962d4a603 Mon Sep 17 00:00:00 2001
From: "Collin M. Barrett" <collinbarrett@users.noreply.github.com>
Date: Sat, 22 Aug 2020 17:41:01 -0500
Subject: [PATCH] =?UTF-8?q?feat(directory):=20=E2=9C=A8=20throw=20if=20rea?=
 =?UTF-8?q?donly=20context=20SaveChanges=20is=20called?=
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---
 .../Queries/Facade/DirectoryQueryDbContext.cs        | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/directory/src/FilterLists.Directory.Infrastructure/Persistence/Queries/Facade/DirectoryQueryDbContext.cs b/directory/src/FilterLists.Directory.Infrastructure/Persistence/Queries/Facade/DirectoryQueryDbContext.cs
index c7c43d8f0..51ae21a3c 100644
--- a/directory/src/FilterLists.Directory.Infrastructure/Persistence/Queries/Facade/DirectoryQueryDbContext.cs
+++ b/directory/src/FilterLists.Directory.Infrastructure/Persistence/Queries/Facade/DirectoryQueryDbContext.cs
@@ -1,4 +1,6 @@
 using System;
+using System.Threading;
+using System.Threading.Tasks;
 using FilterLists.Directory.Infrastructure.Persistence.Queries.Entities;
 using FilterLists.Directory.Infrastructure.Persistence.Queries.Mappings;
 using Microsoft.EntityFrameworkCore;
@@ -19,6 +21,16 @@ public DirectoryQueryDbContext(DbContextOptions<DirectoryQueryDbContext> options
         public DbSet<Syntax> Syntaxes => Set<Syntax>();
         public DbSet<Tag> Tags => Set<Tag>();
 
+        public override int SaveChanges(bool acceptAllChangesOnSuccess)
+        {
+            throw new InvalidOperationException("This context is read-only.");
+        }
+
+        public override Task<int> SaveChangesAsync(bool acceptAllChangesOnSuccess, CancellationToken cancellationToken = new CancellationToken())
+        {
+            throw new InvalidOperationException("This context is read-only.");
+        }
+
         protected override void OnModelCreating(ModelBuilder modelBuilder)
         {
             _ = modelBuilder ?? throw new ArgumentNullException(nameof(modelBuilder));