Fix activity log query.

Jellyfin.Server.Implementations/Activity/ActivityManager.cs

@@ -45,7 +45,9 @@ namespace Jellyfin.Server.Implementations.Activity
         {
             await using var dbContext = _provider.CreateContext();
 
-            IQueryable<ActivityLog> entries = dbContext.ActivityLogs.OrderByDescending(entry => entry.DateCreated);
+            IQueryable<ActivityLog> entries = dbContext.ActivityLogs
+                .AsQueryable()
+                .OrderByDescending(entry => entry.DateCreated);
 
             if (query.MinDate.HasValue)
             {
@@ -59,10 +61,11 @@ namespace Jellyfin.Server.Implementations.Activity
 
             return new QueryResult<ActivityLogEntry>
             {
-                Items = await entries.Skip(query.StartIndex ?? 0)
+                Items = await entries
+                    .Skip(query.StartIndex ?? 0)
                     .Take(query.Limit ?? 100)
+                    .AsAsyncEnumerable()
                     .Select(ConvertToOldModel)
-                    .AsQueryable()
                     .ToListAsync()
                     .ConfigureAwait(false),
                 TotalRecordCount = await entries.CountAsync().ConfigureAwait(false)

Jellyfin.Server.Implementations/Jellyfin.Server.Implementations.csproj

@@ -24,6 +24,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="System.Linq.Async" Version="4.1.1" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.8">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

Jellyfin.Server.Implementations/Users/DisplayPreferencesManager.cs

@@ -61,6 +61,7 @@ namespace Jellyfin.Server.Implementations.Users
         public IList<ItemDisplayPreferences> ListItemDisplayPreferences(Guid userId, string client)
         {
             return _dbContext.ItemDisplayPreferences
+                .AsQueryable()
                 .Where(prefs => prefs.UserId == userId && prefs.ItemId != Guid.Empty && string.Equals(prefs.Client, client))
                 .ToList();
         }

Jellyfin.Server.Implementations/Users/UserManager.cs

@@ -108,6 +108,7 @@ namespace Jellyfin.Server.Implementations.Users
             {
                 using var dbContext = _dbProvider.CreateContext();
                 return dbContext.Users
+                    .AsQueryable()
                     .Select(user => user.Id)
                     .ToList();
             }
@@ -200,8 +201,8 @@ namespace Jellyfin.Server.Implementations.Users
         internal async Task<User> CreateUserInternalAsync(string name, JellyfinDb dbContext)
         {
             // TODO: Remove after user item data is migrated.
-            var max = await dbContext.Users.AnyAsync().ConfigureAwait(false)
+            var max = await dbContext.Users.AsQueryable().AnyAsync().ConfigureAwait(false)
-                ? await dbContext.Users.Select(u => u.InternalId).MaxAsync().ConfigureAwait(false)
+                ? await dbContext.Users.AsQueryable().Select(u => u.InternalId).MaxAsync().ConfigureAwait(false)
                 : 0;
 
             return new User(
@@ -221,7 +222,7 @@ namespace Jellyfin.Server.Implementations.Users
                 throw new ArgumentException("Usernames can contain unicode symbols, numbers (0-9), dashes (-), underscores (_), apostrophes ('), and periods (.)");
             }
 
-            using var dbContext = _dbProvider.CreateContext();
+            await using var dbContext = _dbProvider.CreateContext();
 
             var newUser = await CreateUserInternalAsync(name, dbContext).ConfigureAwait(false);
 
@@ -587,9 +588,9 @@ namespace Jellyfin.Server.Implementations.Users
         public async Task InitializeAsync()
         {
             // TODO: Refactor the startup wizard so that it doesn't require a user to already exist.
-            using var dbContext = _dbProvider.CreateContext();
+            await using var dbContext = _dbProvider.CreateContext();
 
-            if (await dbContext.Users.AnyAsync().ConfigureAwait(false))
+            if (await dbContext.Users.AsQueryable().AnyAsync().ConfigureAwait(false))
             {
                 return;
             }