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Moved userdata to user manager to resolve concurrency issues. must delete userdata and displaypreferences db files.

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pull/702/head
Luke Pulverenti 11 years ago
parent b4dd8a2106
commit e2562879d8
13 changed files with 208 additions and 209 deletions
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17
MediaBrowser.Api/UserLibrary/ItemsService.cs
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@ -241,12 +241,15 @@ namespace MediaBrowser.Api.UserLibrary
/// <returns>IEnumerable{BaseItem}.</returns>
private IEnumerable<BaseItem> ApplyFilter(IEnumerable<BaseItem> items, ItemFilter filter, User user)
{
// Avoids implicitly captured closure
var currentUser = user;
switch (filter)
{
case ItemFilter.Likes:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata != null && userdata.Likes.HasValue && userdata.Likes.Value;
});
@ -254,7 +257,7 @@ namespace MediaBrowser.Api.UserLibrary
case ItemFilter.Dislikes:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata != null && userdata.Likes.HasValue && !userdata.Likes.Value;
});
@ -262,18 +265,18 @@ namespace MediaBrowser.Api.UserLibrary
case ItemFilter.IsFavorite:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata != null && userdata.IsFavorite;
});
case ItemFilter.IsRecentlyAdded:
return items.Where(item => item.IsRecentlyAdded(user));
return items.Where(item => item.IsRecentlyAdded(currentUser));
case ItemFilter.IsResumable:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata != null && userdata.PlaybackPositionTicks > 0;
});
@ -281,7 +284,7 @@ namespace MediaBrowser.Api.UserLibrary
case ItemFilter.IsPlayed:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata != null && userdata.PlayCount > 0;
});
@ -289,7 +292,7 @@ namespace MediaBrowser.Api.UserLibrary
case ItemFilter.IsUnplayed:
return items.Where(item =>
{
var userdata = item.GetUserData(user, false);
var userdata = _userManager.GetUserData(user.Id, item.UserDataId).Result;
return userdata == null || userdata.PlayCount == 0;
});

16
MediaBrowser.Api/UserLibrary/UserLibraryService.cs
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@ -503,12 +503,12 @@ namespace MediaBrowser.Api.UserLibrary
var item = string.IsNullOrEmpty(request.Id) ? user.RootFolder : DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager, user.Id);
// Get the user data for this item
var data = item.GetUserData(user, true);
var data = _userManager.GetUserData(user.Id, item.UserDataId).Result;
// Set favorite status
data.IsFavorite = true;
var task = _userManager.SaveUserDataForItem(user, item, data);
var task = _userManager.SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None);
Task.WaitAll(task);
}
@ -524,12 +524,12 @@ namespace MediaBrowser.Api.UserLibrary
var item = string.IsNullOrEmpty(request.Id) ? user.RootFolder : DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager, user.Id);
// Get the user data for this item
var data = item.GetUserData(user, true);
var data = _userManager.GetUserData(user.Id, item.UserDataId).Result;
// Set favorite status
data.IsFavorite = false;
var task = _userManager.SaveUserDataForItem(user, item, data);
var task = _userManager.SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None);
Task.WaitAll(task);
}
@ -545,11 +545,11 @@ namespace MediaBrowser.Api.UserLibrary
var item = string.IsNullOrEmpty(request.Id) ? user.RootFolder : DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager, user.Id);
// Get the user data for this item
var data = item.GetUserData(user, true);
var data = _userManager.GetUserData(user.Id, item.UserDataId).Result;
data.Rating = null;
var task = _userManager.SaveUserDataForItem(user, item, data);
var task = _userManager.SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None);
Task.WaitAll(task);
}
@ -565,11 +565,11 @@ namespace MediaBrowser.Api.UserLibrary
var item = string.IsNullOrEmpty(request.Id) ? user.RootFolder : DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager, user.Id);
// Get the user data for this item
var data = item.GetUserData(user, true);
var data = _userManager.GetUserData(user.Id, item.UserDataId).Result;
data.Likes = request.Likes;
var task = _userManager.SaveUserDataForItem(user, item, data);
var task = _userManager.SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None);
Task.WaitAll(task);
}

110
MediaBrowser.Controller/Entities/BaseItem.cs
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@ -796,109 +796,6 @@ namespace MediaBrowser.Controller.Entities
get { return null; }
}
/// <summary>
/// The _user data
/// </summary>
private IEnumerable<UserItemData> _userData;
/// <summary>
/// The _user data initialized
/// </summary>
private bool _userDataInitialized;
/// <summary>
/// The _user data sync lock
/// </summary>
private object _userDataSyncLock = new object();
/// <summary>
/// Gets the user data.
/// </summary>
/// <value>The user data.</value>
[IgnoreDataMember]
public IEnumerable<UserItemData> UserData
{
get
{
// Call ToList to exhaust the stream because we'll be iterating over this multiple times
LazyInitializer.EnsureInitialized(ref _userData, ref _userDataInitialized, ref _userDataSyncLock, () => Kernel.Instance.UserDataRepository.RetrieveUserData(this).ToList());
return _userData;
}
private set
{
_userData = value;
if (value == null)
{
_userDataInitialized = false;
}
}
}
/// <summary>
/// Gets the user data.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="createIfNull">if set to <c>true</c> [create if null].</param>
/// <returns>UserItemData.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
public UserItemData GetUserData(User user, bool createIfNull)
{
if (user == null)
{
throw new ArgumentNullException();
}
if (UserData == null)
{
if (!createIfNull)
{
return null;
}
AddOrUpdateUserData(user, new UserItemData { UserId = user.Id });
}
var data = UserData.FirstOrDefault(u => u.UserId == user.Id);
if (data == null && createIfNull)
{
data = new UserItemData { UserId = user.Id };
AddOrUpdateUserData(user, data);
}
return data;
}
/// <summary>
/// Adds the or update user data.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="data">The data.</param>
/// <exception cref="System.ArgumentNullException"></exception>
public void AddOrUpdateUserData(User user, UserItemData data)
{
if (user == null)
{
throw new ArgumentNullException();
}
if (data == null)
{
throw new ArgumentNullException();
}
data.UserId = user.Id;
if (UserData == null)
{
UserData = new[] { data };
}
else
{
var list = UserData.Where(u => u.UserId != user.Id).ToList();
list.Add(data);
UserData = list;
}
}
/// <summary>
/// The _user data id
/// </summary>
@ -1205,16 +1102,17 @@ namespace MediaBrowser.Controller.Entities
/// </summary>
/// <param name="user">The user.</param>
/// <param name="wasPlayed">if set to <c>true</c> [was played].</param>
/// <param name="userManager">The user manager.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
public virtual Task SetPlayedStatus(User user, bool wasPlayed, IUserManager userManager)
public virtual async Task SetPlayedStatus(User user, bool wasPlayed, IUserManager userManager)
{
if (user == null)
{
throw new ArgumentNullException();
}
var data = GetUserData(user, true);
var data = await userManager.GetUserData(user.Id, UserDataId).ConfigureAwait(false);
if (wasPlayed)
{
@ -1237,7 +1135,7 @@ namespace MediaBrowser.Controller.Entities
data.Played = wasPlayed;
return userManager.SaveUserDataForItem(user, this, data);
await userManager.SaveUserData(user.Id, UserDataId, data, CancellationToken.None).ConfigureAwait(false);
}
/// <summary>

1
MediaBrowser.Controller/Entities/Folder.cs
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@ -799,6 +799,7 @@ namespace MediaBrowser.Controller.Entities
/// </summary>
/// <param name="user">The user.</param>
/// <param name="wasPlayed">if set to <c>true</c> [was played].</param>
/// <param name="userManager">The user manager.</param>
/// <returns>Task.</returns>
public override async Task SetPlayedStatus(User user, bool wasPlayed, IUserManager userManager)
{

15
MediaBrowser.Controller/Library/DtoBuilder.cs
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@ -167,12 +167,9 @@ namespace MediaBrowser.Controller.Library
{
if (fields.Contains(ItemFields.UserData))
{
var userData = item.GetUserData(user, false);
var userData = await _userManager.GetUserData(user.Id, item.UserDataId).ConfigureAwait(false);
if (userData != null)
{
dto.UserData = GetUserItemDataDto(userData);
}
dto.UserData = GetUserItemDataDto(userData);
}
if (item.IsFolder && fields.Contains(ItemFields.DisplayPreferences))
@ -191,7 +188,7 @@ namespace MediaBrowser.Controller.Library
// Skip sorting since all we want is a count
dto.ChildCount = folder.GetChildren(user).Count();
SetSpecialCounts(folder, user, dto);
await SetSpecialCounts(folder, user, dto, _userManager).ConfigureAwait(false);
}
}
}
@ -488,7 +485,9 @@ namespace MediaBrowser.Controller.Library
/// <param name="folder">The folder.</param>
/// <param name="user">The user.</param>
/// <param name="dto">The dto.</param>
private static void SetSpecialCounts(Folder folder, User user, BaseItemDto dto)
/// <param name="userManager">The user manager.</param>
/// <returns>Task.</returns>
private static async Task SetSpecialCounts(Folder folder, User user, BaseItemDto dto, IUserManager userManager)
{
var rcentlyAddedItemCount = 0;
var recursiveItemCount = 0;
@ -498,7 +497,7 @@ namespace MediaBrowser.Controller.Library
// Loop through each recursive child
foreach (var child in folder.GetRecursiveChildren(user).Where(i => !i.IsFolder))
{
var userdata = child.GetUserData(user, false);
var userdata = await userManager.GetUserData(user.Id, child.UserDataId).ConfigureAwait(false);
recursiveItemCount++;

29
MediaBrowser.Controller/Library/IUserManager.cs
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@ -1,11 +1,11 @@
using MediaBrowser.Common.Events;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Model.Connectivity;
using MediaBrowser.Model.Entities;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.Entities;
namespace MediaBrowser.Controller.Library
{
@ -157,14 +157,6 @@ namespace MediaBrowser.Controller.Library
/// <exception cref="System.ArgumentNullException"></exception>
Task OnPlaybackStopped(User user, BaseItem item, long? positionTicks, string clientType, string deviceId, string deviceName);
/// <summary>
/// Saves user data for an item
/// </summary>
/// <param name="user">The user.</param>
/// <param name="item">The item.</param>
/// <param name="data">The data.</param>
Task SaveUserDataForItem(User user, BaseItem item, UserItemData data);
/// <summary>
/// Resets the password.
/// </summary>
@ -180,6 +172,25 @@ namespace MediaBrowser.Controller.Library
/// <returns>Task.</returns>
Task ChangePassword(User user, string newPassword);
/// <summary>
/// Saves display preferences for an item
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <param name="userData">The user data.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
Task SaveUserData(Guid userId, Guid userDataId, UserItemData userData,
CancellationToken cancellationToken);
/// <summary>
/// Gets the display preferences.
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <returns>Task{DisplayPreferences}.</returns>
Task<UserItemData> GetUserData(Guid userId, Guid userDataId);
/// <summary>
/// Gets the display preferences.
/// </summary>

20
MediaBrowser.Controller/Persistence/IUserDataRepository.cs
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@ -1,5 +1,5 @@
using MediaBrowser.Controller.Entities;
using System.Collections.Generic;
using System;
using System.Threading;
using System.Threading.Tasks;
@ -11,18 +11,22 @@ namespace MediaBrowser.Controller.Persistence
public interface IUserDataRepository : IRepository
{
/// <summary>
/// Saves user data for an item
/// Saves the user data.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <param name="userData">The user data.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
Task SaveUserData(BaseItem item, CancellationToken cancellationToken);
Task SaveUserData(Guid userId, Guid userDataId, UserItemData userData,
CancellationToken cancellationToken);
/// <summary>
/// Gets user data for an item
/// Gets the user data.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>IEnumerable{UserItemData}.</returns>
IEnumerable<UserItemData> RetrieveUserData(BaseItem item);
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <returns>Task{UserItemData}.</returns>
Task<UserItemData> GetUserData(Guid userId, Guid userDataId);
}
}

7
MediaBrowser.Controller/Sorting/IUserBaseItemComparer.cs
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@ -1,4 +1,5 @@
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
namespace MediaBrowser.Controller.Sorting
{
@ -12,5 +13,11 @@ namespace MediaBrowser.Controller.Sorting
/// </summary>
/// <value>The user.</value>
User User { get; set; }
/// <summary>
/// Gets or sets the user manager.
/// </summary>
/// <value>The user manager.</value>
IUserManager UserManager { get; set; }
}
}

1
MediaBrowser.Server.Implementations/Library/LibraryManager.cs
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@ -861,6 +861,7 @@ namespace MediaBrowser.Server.Implementations.Library
var userComparer = (IUserBaseItemComparer)Activator.CreateInstance(comparer.GetType());
userComparer.User = user;
userComparer.UserManager = _userManager;
return userComparer;
}

74
MediaBrowser.Server.Implementations/Library/UserManager.cs
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@ -1,5 +1,4 @@
using System.Collections.Concurrent;
using MediaBrowser.Common.Events;
using MediaBrowser.Common.Events;
using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Configuration;
@ -9,6 +8,7 @@ using MediaBrowser.Model.Connectivity;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
@ -104,6 +104,8 @@ namespace MediaBrowser.Server.Implementations.Library
/// </summary>
private readonly ConcurrentDictionary<string, Task<DisplayPreferences>> _displayPreferences = new ConcurrentDictionary<string, Task<DisplayPreferences>>();
private readonly ConcurrentDictionary<string, Task<UserItemData>> _userData = new ConcurrentDictionary<string, Task<UserItemData>>();
/// <summary>
/// Initializes a new instance of the <see cref="UserManager" /> class.
/// </summary>
@ -200,14 +202,15 @@ namespace MediaBrowser.Server.Implementations.Library
public async Task SaveDisplayPreferences(Guid userId, Guid displayPreferencesId, DisplayPreferences displayPreferences, CancellationToken cancellationToken)
{
var key = userId + displayPreferencesId.ToString();
var newValue = Task.FromResult(displayPreferences);
try
{
await Kernel.Instance.DisplayPreferencesRepository.SaveDisplayPreferences(userId, displayPreferencesId,
displayPreferences,
cancellationToken).ConfigureAwait(false);
var newValue = Task.FromResult(displayPreferences);
// Once it succeeds, put it into the dictionary to make it available to everyone else
_displayPreferences.AddOrUpdate(key, newValue, delegate { return newValue; });
}
@ -651,10 +654,10 @@ namespace MediaBrowser.Server.Implementations.Library
if (positionTicks.HasValue)
{
var data = item.GetUserData(user, true);
var data = await GetUserData(user.Id, item.UserDataId).ConfigureAwait(false);
UpdatePlayState(item, data, positionTicks.Value, false);
await SaveUserDataForItem(user, item, data).ConfigureAwait(false);
await SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None).ConfigureAwait(false);
}
EventHelper.QueueEventIfNotNull(PlaybackProgress, this, new PlaybackProgressEventArgs
@ -689,7 +692,7 @@ namespace MediaBrowser.Server.Implementations.Library
RemoveNowPlayingItemId(user, clientType, deviceId, deviceName, item);
var data = item.GetUserData(user, true);
var data = await GetUserData(user.Id, item.UserDataId).ConfigureAwait(false);
if (positionTicks.HasValue)
{
@ -702,7 +705,7 @@ namespace MediaBrowser.Server.Implementations.Library
data.Played = true;
}
await SaveUserDataForItem(user, item, data).ConfigureAwait(false);
await SaveUserData(user.Id, item.UserDataId, data, CancellationToken.None).ConfigureAwait(false);
EventHelper.QueueEventIfNotNull(PlaybackStopped, this, new PlaybackProgressEventArgs
{
@ -763,16 +766,57 @@ namespace MediaBrowser.Server.Implementations.Library
}
/// <summary>
/// Saves user data for an item
/// Saves display preferences for an item
/// </summary>
/// <param name="user">The user.</param>
/// <param name="item">The item.</param>
/// <param name="data">The data.</param>
public Task SaveUserDataForItem(User user, BaseItem item, UserItemData data)
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <param name="userData">The user data.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task SaveUserData(Guid userId, Guid userDataId, UserItemData userData, CancellationToken cancellationToken)
{
var key = userId + userDataId.ToString();
try
{
await Kernel.Instance.UserDataRepository.SaveUserData(userId, userDataId, userData, cancellationToken).ConfigureAwait(false);
var newValue = Task.FromResult(userData);
// Once it succeeds, put it into the dictionary to make it available to everyone else
_userData.AddOrUpdate(key, newValue, delegate { return newValue; });
}
catch (Exception ex)
{
_logger.ErrorException("Error saving user data", ex);
throw;
}
}
/// <summary>
/// Gets the display preferences.
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <returns>Task{DisplayPreferences}.</returns>
public Task<UserItemData> GetUserData(Guid userId, Guid userDataId)
{
var key = userId + userDataId.ToString();
return _userData.GetOrAdd(key, keyName => RetrieveUserData(userId, userDataId));
}
/// <summary>
/// Retrieves the display preferences.
/// </summary>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <returns>DisplayPreferences.</returns>
private async Task<UserItemData> RetrieveUserData(Guid userId, Guid userDataId)
{
item.AddOrUpdateUserData(user, data);
var userdata = await Kernel.Instance.UserDataRepository.GetUserData(userId, userDataId).ConfigureAwait(false);
return Kernel.UserDataRepository.SaveUserData(item, CancellationToken.None);
return userdata ?? new UserItemData();
}
}
}

9
MediaBrowser.Server.Implementations/Sorting/DatePlayedComparer.cs
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@ -1,4 +1,5 @@
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Sorting;
using MediaBrowser.Model.Querying;
using System;
@ -16,6 +17,12 @@ namespace MediaBrowser.Server.Implementations.Sorting
/// <value>The user.</value>
public User User { get; set; }
/// <summary>
/// Gets or sets the user manager.
/// </summary>
/// <value>The user manager.</value>
public IUserManager UserManager { get; set; }
/// <summary>
/// Compares the specified x.
/// </summary>
@ -34,7 +41,7 @@ namespace MediaBrowser.Server.Implementations.Sorting
/// <returns>DateTime.</returns>
private DateTime GetDate(BaseItem x)
{
var userdata = x.GetUserData(User, false);
var userdata = UserManager.GetUserData(User.Id, x.UserDataId).Result;
if (userdata != null && userdata.LastPlayedDate.HasValue)
{

9
MediaBrowser.Server.Implementations/Sorting/PlayCountComparer.cs
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@ -1,4 +1,5 @@
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Sorting;
using MediaBrowser.Model.Querying;
@ -33,7 +34,7 @@ namespace MediaBrowser.Server.Implementations.Sorting
/// <returns>DateTime.</returns>
private int GetValue(BaseItem x)
{
var userdata = x.GetUserData(User, false);
var userdata = UserManager.GetUserData(User.Id, x.UserDataId).Result;
return userdata == null ? 0 : userdata.PlayCount;
}
@ -46,5 +47,11 @@ namespace MediaBrowser.Server.Implementations.Sorting
{
get { return ItemSortBy.PlayCount; }
}
/// <summary>
/// Gets or sets the user manager.
/// </summary>
/// <value>The user manager.</value>
public IUserManager UserManager { get; set; }
}
}

109
MediaBrowser.Server.Implementations/Sqlite/SQLiteUserDataRepository.cs
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@ -79,8 +79,8 @@ namespace MediaBrowser.Server.Implementations.Sqlite
string[] queries = {
"create table if not exists user_data (item_id GUID, user_id GUID, data BLOB)",
"create unique index if not exists idx_user_data on user_data (item_id, user_id)",
"create table if not exists userdata (id GUID, userId GUID, data BLOB)",
"create unique index if not exists userdataindex on userdata (id, userId)",
"create table if not exists schema_version (table_name primary key, version)",
//pragmas
"pragma temp_store = memory"
@ -90,84 +90,101 @@ namespace MediaBrowser.Server.Implementations.Sqlite
}
/// <summary>
/// Save the user specific data associated with an item in the repo
/// Saves the user data.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <param name="userData">The user data.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public Task SaveUserData(BaseItem item, CancellationToken cancellationToken)
/// <exception cref="System.ArgumentNullException">
/// userData
/// or
/// cancellationToken
/// or
/// userId
/// or
/// userDataId
/// </exception>
public Task SaveUserData(Guid userId, Guid userDataId, UserItemData userData, CancellationToken cancellationToken)
{
if (item == null)
if (userData == null)
{
throw new ArgumentNullException("item");
throw new ArgumentNullException("userData");
}
if (cancellationToken == null)
{
throw new ArgumentNullException("cancellationToken");
}
if (userId == Guid.Empty)
{
throw new ArgumentNullException("userId");
}
if (userDataId == Guid.Empty)
{
throw new ArgumentNullException("userDataId");
}
cancellationToken.ThrowIfCancellationRequested();
return Task.Run(() =>
{
var serialized = _protobufSerializer.SerializeToBytes(userData);
cancellationToken.ThrowIfCancellationRequested();
var cmd = connection.CreateCommand();
cmd.CommandText = "delete from user_data where item_id = @guid";
cmd.AddParam("@guid", item.UserDataId);
cmd.CommandText = "replace into userdata (id, userId, data) values (@1, @2, @3)";
cmd.AddParam("@1", userDataId);
cmd.AddParam("@2", userId);
cmd.AddParam("@3", serialized);
QueueCommand(cmd);
if (item.UserData != null)
{
foreach (var data in item.UserData)
{
cmd = connection.CreateCommand();
cmd.CommandText = "insert into user_data (item_id, user_id, data) values (@1, @2, @3)";
cmd.AddParam("@1", item.UserDataId);
cmd.AddParam("@2", data.UserId);
cmd.AddParam("@3", _protobufSerializer.SerializeToBytes(data));
QueueCommand(cmd);
}
}
});
}
/// <summary>
/// Gets user data for an item
/// Gets the user data.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>IEnumerable{UserItemData}.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public IEnumerable<UserItemData> RetrieveUserData(BaseItem item)
/// <param name="userId">The user id.</param>
/// <param name="userDataId">The user data id.</param>
/// <returns>Task{UserItemData}.</returns>
/// <exception cref="System.ArgumentNullException">
/// userId
/// or
/// userDataId
/// </exception>
public async Task<UserItemData> GetUserData(Guid userId, Guid userDataId)
{
if (item == null)
if (userId == Guid.Empty)
{
throw new ArgumentNullException("item");
throw new ArgumentNullException("userId");
}
if (userDataId == Guid.Empty)
{
throw new ArgumentNullException("userDataId");
}
var cmd = connection.CreateCommand();
cmd.CommandText = "select data from user_data where item_id = @guid";
var guidParam = cmd.Parameters.Add("@guid", DbType.Guid);
guidParam.Value = item.UserDataId;
cmd.CommandText = "select data from userdata where id = @id and userId=@userId";
var idParam = cmd.Parameters.Add("@id", DbType.Guid);
idParam.Value = userDataId;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
var userIdParam = cmd.Parameters.Add("@userId", DbType.Guid);
userIdParam.Value = userId;
using (var reader = await cmd.ExecuteReaderAsync(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult | CommandBehavior.SingleRow).ConfigureAwait(false))
{
while (reader.Read())
if (reader.Read())
{
using (var stream = GetStream(reader, 0))
{
var data = _protobufSerializer.DeserializeFromStream<UserItemData>(stream);
if (data != null)
{
yield return data;
}
return _protobufSerializer.DeserializeFromStream<UserItemData>(stream);
}
}
}
return null;
}
}
}

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