Fix nullable ints in the database exploding the playlists

LightTube/Database/DatabaseManager.cs

@@ -1,5 +1,7 @@
 using LightTube.Chores;
 using LightTube.Database.Models;
+using LightTube.Database.Serialization;
+using MongoDB.Bson.Serialization;
 using MongoDB.Driver;
 
 namespace LightTube.Database;
@@ -33,6 +35,8 @@ public static void Init(string connstr)
  Cache = new CacheManager(ChannelCacheCollection, VideoCacheCollection);
  Oauth2 = new Oauth2Manager(Oauth2TokensCollection);
  Playlists = new PlaylistManager(PlaylistCollection, VideoCacheCollection);
+
+ BsonSerializer.RegisterSerializationProvider(new LightTubeBsonSerializationProvider());
 
  ChoreManager.QueueChore("DatabaseCleanup");
  }

LightTube/Database/Serialization/BsonNullableIntSerializer.cs

@@ -0,0 +1,23 @@
+using MongoDB.Bson;
+using MongoDB.Bson.Serialization;
+using MongoDB.Bson.Serialization.Serializers;
+
+namespace LightTube.Database.Serialization;
+
+public class BsonNullableIntSerializer : SerializerBase<int>
+{
+ public override int Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args)
+ {
+ BsonType type = context.Reader.GetCurrentBsonType();
+ switch (type)
+ {
+ case BsonType.Null:
+ context.Reader.ReadNull();
+ return 0;
+ case BsonType.Int32:
+ return context.Reader.ReadInt32();
+ default:
+ return 0;
+ }
+ }
+}

LightTube/Database/Serialization/LightTubeBsonSerializationProvider.cs

@@ -0,0 +1,11 @@
+using MongoDB.Bson.Serialization;
+
+namespace LightTube.Database.Serialization;
+
+public class LightTubeBsonSerializationProvider : IBsonSerializationProvider
+{
+ public IBsonSerializer? GetSerializer(Type type)
+ {
+ return type == typeof(int) ? new BsonNullableIntSerializer() : null;
+ }
+}