diff options
Diffstat (limited to 'Emby.Server.Implementations/Library')
| -rw-r--r-- | Emby.Server.Implementations/Library/PathExtensions.cs | 81 | ||||
| -rw-r--r-- | Emby.Server.Implementations/Library/UserDataManager.cs | 84 |
2 files changed, 110 insertions, 55 deletions
diff --git a/Emby.Server.Implementations/Library/PathExtensions.cs b/Emby.Server.Implementations/Library/PathExtensions.cs index 7591359ea4..7d0f3900c5 100644 --- a/Emby.Server.Implementations/Library/PathExtensions.cs +++ b/Emby.Server.Implementations/Library/PathExtensions.cs @@ -29,17 +29,41 @@ namespace Emby.Server.Implementations.Library throw new ArgumentException("String can't be empty.", nameof(attribute)); } - var attributeIndex = str.IndexOf(attribute, StringComparison.OrdinalIgnoreCase); + // Allow tmdb as an alias for tmdbid, tvdb for tvdbid, etc. + // The code below only supports aliases for attributes in the form of "<alias>id". + ReadOnlySpan<char> shortAttr = attribute switch + { + _ when attribute.Equals("tmdbid", StringComparison.OrdinalIgnoreCase) => "tmdb", + _ when attribute.Equals("tvdbid", StringComparison.OrdinalIgnoreCase) => "tvdb", + _ when attribute.Equals("imdbid", StringComparison.OrdinalIgnoreCase) => "imdb", + _ => ReadOnlySpan<char>.Empty + }; - // Must be at least 3 characters after the attribute =, ], any character, - // then we offset it by 1, because we want the index and not length. - var maxIndex = str.Length - attribute.Length - 2; - while (attributeIndex > -1 && attributeIndex < maxIndex) + for (int strIndex = 0, attributeIndex = 0; attributeIndex > -1;) { - var attributeEnd = attributeIndex + attribute.Length; + // We may want to use imdbid pattern matching later, so we don't want to modify the original 'str'. + var subStr = str[strIndex..]; + int attributeEnd = 0; + + if (shortAttr.Length > 0) + { + // If we are using an alias it should be shorter (and a prefix), so let's search for that. + attributeIndex = subStr.IndexOf(shortAttr, StringComparison.OrdinalIgnoreCase); + attributeEnd = attributeIndex + shortAttr.Length; + } + else + { + attributeIndex = subStr.IndexOf(attribute, StringComparison.OrdinalIgnoreCase); + attributeEnd = attributeIndex + attribute.Length; + } + + // The next iteration should start at the end of the attribute we just found. + // If attributeIndex < 0, the loop will end and strIndex won't be used again. + strIndex += attributeEnd; + if (attributeIndex > 0) { - var attributeOpener = str[attributeIndex - 1]; + var attributeOpener = subStr[attributeIndex - 1]; var attributeCloser = attributeOpener switch { '[' => ']', @@ -47,20 +71,37 @@ namespace Emby.Server.Implementations.Library '{' => '}', _ => '\0' }; - if (attributeCloser != '\0' && (str[attributeEnd] == '=' || str[attributeEnd] == '-')) + + if (attributeCloser != '\0') { - var closingIndex = str[attributeEnd..].IndexOf(attributeCloser); + if (shortAttr.Length > 0 + && attributeEnd + 1 < subStr.Length + && (subStr[attributeEnd] is 'i' or 'I') + && (subStr[attributeEnd + 1] is 'd' or 'D')) + { + // We were searching for a shortened attribute, but it's followed by "id" - let's skip it. + attributeEnd += 2; + } - // Must be at least 1 character before the closing bracket. - if (closingIndex > 1) + // attributeEnd points at '='. + // We need at least 1 more character and the closing bracket after that. + if (attributeEnd + 2 < subStr.Length && (subStr[attributeEnd] is '=' or '-')) { - return str[(attributeEnd + 1)..(attributeEnd + closingIndex)].Trim().ToString(); + var closingIndex = subStr[attributeEnd..].IndexOf(attributeCloser); + + // Must be at least 1 character before the closing bracket. + if (closingIndex > 1) + { + var trimmed = subStr[(attributeEnd + 1)..(attributeEnd + closingIndex)].Trim(); + + if (trimmed.Length > 0) + { + return trimmed.ToString(); + } + } } } } - - str = str[attributeEnd..]; - attributeIndex = str.IndexOf(attribute, StringComparison.OrdinalIgnoreCase); } // for imdbid we also accept pattern matching @@ -70,16 +111,6 @@ namespace Emby.Server.Implementations.Library return match ? imdbId.ToString() : null; } - // Allow tmdb as an alias for tmdbid - if (attribute.Equals("tmdbid", StringComparison.OrdinalIgnoreCase)) - { - var tmdbValue = str.GetAttributeValue("tmdb"); - if (tmdbValue is not null) - { - return tmdbValue; - } - } - return null; } diff --git a/Emby.Server.Implementations/Library/UserDataManager.cs b/Emby.Server.Implementations/Library/UserDataManager.cs index 19b42a3a11..f5c41e5670 100644 --- a/Emby.Server.Implementations/Library/UserDataManager.cs +++ b/Emby.Server.Implementations/Library/UserDataManager.cs @@ -192,7 +192,8 @@ namespace Emby.Server.Implementations.Library } else { - var userData = item.UserData?.Where(e => e.UserId.Equals(user.Id)).Select(Map).FirstOrDefault(); + var userDataRow = ResolveUserDataRow(item, item.UserData?.Where(e => e.UserId.Equals(user.Id))); + var userData = userDataRow is not null ? Map(userDataRow) : null; if (userData is not null) { result[item.Id] = userData; @@ -211,37 +212,32 @@ namespace Emby.Server.Implementations.Library return result; } - // Build a single query for all missing items + // Build a single query for all missing items. Fetch rows by item alone so rows kept + // under keys from older metadata resolve the same way as the in-memory path. var allItemIds = itemsNeedingQuery.Select(x => x.Item.Id).ToList(); - var allKeys = itemsNeedingQuery.SelectMany(x => x.Keys).Distinct().ToList(); - if (allKeys.Count > 0) - { - using var context = _repository.CreateDbContext(); - var userDataArray = context.UserData - .AsNoTracking() - .Where(e => e.UserId.Equals(user.Id)) - .WhereOneOrMany(allItemIds, e => e.ItemId) - .WhereOneOrMany(allKeys, e => e.CustomDataKey) - .ToArray(); - - var userDataByItem = userDataArray.GroupBy(e => e.ItemId).ToDictionary(g => g.Key, g => g.ToArray()); - foreach (var (item, keys) in itemsNeedingQuery) + using var context = _repository.CreateDbContext(); + var userDataArray = context.UserData + .AsNoTracking() + .Where(e => e.UserId.Equals(user.Id)) + .WhereOneOrMany(allItemIds, e => e.ItemId) + .ToArray(); + + var userDataByItem = userDataArray.GroupBy(e => e.ItemId).ToDictionary(g => g.Key, g => g.ToArray()); + foreach (var (item, keys) in itemsNeedingQuery) + { + UserItemData userData; + if (userDataByItem.TryGetValue(item.Id, out var itemUserData) && itemUserData.Length > 0) { - UserItemData userData; - if (userDataByItem.TryGetValue(item.Id, out var itemUserData) && itemUserData.Length > 0) - { - var directDataReference = itemUserData.FirstOrDefault(e => e.CustomDataKey == item.Id.ToString("N")); - userData = directDataReference is not null ? Map(directDataReference) : Map(itemUserData.First()); - } - else - { - userData = new UserItemData { Key = keys.Count > 0 ? keys[0] : string.Empty }; - } - - result[item.Id] = userData; - var cacheKey = GetCacheKey(user.InternalId, item.Id); - _cache.AddOrUpdate(cacheKey, userData); + userData = Map(ResolveUserDataRow(item, itemUserData)!); } + else + { + userData = new UserItemData { Key = keys.Count > 0 ? keys[0] : string.Empty }; + } + + result[item.Id] = userData; + var cacheKey = GetCacheKey(user.InternalId, item.Id); + _cache.AddOrUpdate(cacheKey, userData); } return result; @@ -356,12 +352,40 @@ namespace Emby.Server.Implementations.Library /// <inheritdoc /> public UserItemData? GetUserData(User user, BaseItem item) { - return item.UserData?.Where(e => e.UserId.Equals(user.Id)).Select(Map).FirstOrDefault() ?? new UserItemData() + var row = ResolveUserDataRow(item, item.UserData?.Where(e => e.UserId.Equals(user.Id))); + return row is not null ? Map(row) : new UserItemData() { Key = item.GetUserDataKeys()[0], }; } + /// <summary> + /// Picks the row matching the item's current user data keys, in key order, so rows left behind + /// under keys from older metadata don't take priority over the rows the write path updates. + /// </summary> + /// <param name="item">The item whose keys to match.</param> + /// <param name="rows">The candidate user data rows for a single user.</param> + /// <returns>The best matching row, or <c>null</c> when there are none.</returns> + private static UserData? ResolveUserDataRow(BaseItem item, IEnumerable<UserData>? rows) + { + var candidates = rows?.ToList(); + if (candidates is null || candidates.Count == 0) + { + return null; + } + + foreach (var key in item.GetUserDataKeys()) + { + var match = candidates.Find(e => string.Equals(e.CustomDataKey, key, StringComparison.Ordinal)); + if (match is not null) + { + return match; + } + } + + return candidates[0]; + } + /// <inheritdoc /> public UserItemDataDto? GetUserDataDto(BaseItem item, User user) => GetUserDataDto(item, null, user, new DtoOptions()); |