Add AsNoTracking() to improve performance

aspnet-core/src/CoMon.Application/Assets/AssetAppService.cs

@@ -33,6 +33,7 @@ public async Task<AssetDto> Get(long id)
  .OrderByDescending(s => s.Time)
  .Take(1))
  .AsSplitQuery()
+ .AsNoTracking()
  .SingleOrDefaultAsync()
  ?? throw new EntityNotFoundException("Asset not found.");
 
@@ -45,6 +46,7 @@ public async Task<List<AssetPreviewDto>> GetAllPreviews()
  .GetAll()
  .Include(a => a.Group.Parent.Parent)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  return _objectMapper.Map<List<AssetPreviewDto>>(assets);

aspnet-core/src/CoMon.Application/Assistant/AssistantAppService.cs

@@ -34,6 +34,7 @@ public async Task<string> GetRecommendations(long statusId)
  .Include(s => s.Package)
  .ThenInclude(s => s.Asset)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync() 
  ?? throw new EntityNotFoundException("Status not found.");
 
@@ -58,6 +59,7 @@ public async Task<string> GetAssetSummary(long assetId)
  .OrderByDescending(s => s.Time)
  .Take(1))
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync() ?? throw new KeyNotFoundException("Asset not found.");
 
  var statuses = asset.Packages

aspnet-core/src/CoMon.Application/Dashboards/DashboardAppService.cs

@@ -35,6 +35,7 @@ public async Task<DashboardDto> Get(long id)
  .Where(d => d.Id == id)
  .Include(d => d.Tiles)
  .AsSplitQuery()
+ .AsNoTracking()
  .SingleOrDefaultAsync()
  ?? throw new EntityNotFoundException("Dashboard not found for given id.");
 
@@ -47,6 +48,7 @@ public async Task<List<DashboardPreviewDto>> GetAllPreviews()
  .GetAll()
  .Include(d => d.Tiles)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  return dashboards.Select(d => new DashboardPreviewDto()

aspnet-core/src/CoMon.Application/Groups/GroupAppService.cs

@@ -54,6 +54,7 @@ public async Task<GroupDto> Get(long id)
  .Include(g => g.SubGroups)
  .Include(g => g.Assets)
  .AsSplitQuery()
+ .AsNoTracking()
  .SingleOrDefaultAsync()
  ?? throw new EntityNotFoundException("Group not found.");
 
@@ -74,6 +75,7 @@ public async Task<GroupPreviewDto> GetPreview(long id)
  var group = await _groupRepository
  .GetAll()
  .Where(g => g.Id == id)
+ .AsNoTracking()
  .SingleOrDefaultAsync()
  ?? throw new EntityNotFoundException("Group not found.");
 
@@ -93,6 +95,7 @@ public async Task<List<GroupPreviewDto>> GetAllPreviews()
  .GetAll()
  .Include(g => g.Parent.Parent)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  return _objectMapper.Map<List<GroupPreviewDto>>(groups);

aspnet-core/src/CoMon.Application/Groups/GroupAppServiceHelper.cs

@@ -23,6 +23,7 @@ public static async Task<List<Status>> GetLatestStatusesFromGroup(IRepository<Gr
  .OrderByDescending(s => s.Time)
  .Take(1))
  .AsSplitQuery()
+ .AsNoTracking()
  .SingleOrDefaultAsync() ?? throw new EntityNotFoundException("Group not found");
 
  var statuses = group.Assets.Select(a => a.Packages).SelectMany(x => x).Select(p => p.Statuses).SelectMany(x => x).ToList();
@@ -56,6 +57,7 @@ public static async Task<List<Status>> GetAllLatestStatuses(IRepository<Group, l
  .OrderByDescending(s => s.Time)
  .Take(1))
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  statuses.AddRange(assets.Select(a => a.Packages).SelectMany(x => x).Select(p => p.Statuses).SelectMany(x => x).ToList());

aspnet-core/src/CoMon.Application/Packages/PackageAppService.cs

@@ -35,6 +35,7 @@ await _packageRepository
  .Take(1))
  .Where(p => p.Id == id)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync()
  ?? throw new EntityNotFoundException("Package not found"));
  }
@@ -48,6 +49,7 @@ await _packageRepository
  .ThenInclude(a => a.Group.Parent.Parent)
  .Where(p => p.Id == id)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync()
  ?? throw new EntityNotFoundException("Package not found"));
  }

aspnet-core/src/CoMon.Application/Statuses/StatusAppService.cs

@@ -41,6 +41,7 @@ public async Task<StatusDto> Get(long id)
  .ThenInclude(c => c.Series)
  .ThenInclude(s => s.DataPoints)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync()
  ?? throw new EntityNotFoundException("Status not found.");
 
@@ -84,6 +85,7 @@ public async Task<StatusPreviewDto> GetPreview(long id)
  .ThenInclude(p => p.Asset)
  .ThenInclude(a => a.Group.Parent.Parent)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync()
  ?? throw new EntityNotFoundException("Status not found.");
  status.IsLatest = await IsLatest(status);
@@ -108,13 +110,15 @@ public async Task<StatusHistoryDto> GetHistory(long id)
  .Include(s => s.Package)
  .Where(s => s.Id == id)
  .AsSplitQuery()
+ .AsNoTracking()
  .FirstOrDefaultAsync()
  ?? throw new EntityNotFoundException("Status not found.");
 
  var latestStatus = await _statusRepository
  .GetAll()
  .Where(s => s.Package.Id == status.Package.Id)
  .OrderByDescending(s => s.Time)
+ .AsNoTracking()
  .FirstOrDefaultAsync();
 
  if (latestStatus.Id == id)
@@ -125,13 +129,15 @@ public async Task<StatusHistoryDto> GetHistory(long id)
  .Where(s => s.Package.Id == status.Package.Id)
  .Where(s => s.Time < status.Time)
  .OrderByDescending(s => s.Time)
+ .AsNoTracking()
  .FirstOrDefaultAsync();
 
  var nextStatus = await _statusRepository
  .GetAll()
  .Where(s => s.Package.Id == status.Package.Id)
  .Where(s => s.Time > status.Time)
  .OrderBy(s => s.Time)
+ .AsNoTracking()
  .FirstOrDefaultAsync();
 
  return new StatusHistoryDto()
@@ -149,12 +155,14 @@ public async Task<StatusTableOptionsDto> GetStatusTableOptions()
  .GetAll()
  .Include(a => a.Group.Parent.Parent)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  var groups = await _groupRepository
  .GetAll()
  .Include(g => g.Parent.Parent)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToListAsync();
 
  return new StatusTableOptionsDto()
@@ -218,6 +226,7 @@ public async Task<PagedResultDto<StatusPreviewDto>> GetStatusTable(PagedResultRe
  .Skip(request.SkipCount)
  .Take(request.MaxResultCount)
  .AsSplitQuery()
+ .AsNoTracking()
  .ToList();
 
  foreach (var status in statuses)
@@ -241,6 +250,7 @@ public async Task<StatusPreviewDto> GetLatestStatusPreview(long packageId)
  .OrderBy(p => p.Key.Name)
  .Select(g => g.OrderByDescending(s => s.Time).FirstOrDefault())
  .AsSplitQuery()
+ .AsNoTracking()
  .SingleOrDefaultAsync();
 
  return _objectMapper.Map<StatusPreviewDto>(status);