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using System;
using System.Linq;
using Jellyfin.Database.Implementations;
using MediaBrowser.Model.Globalization;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Server.Migrations.Routines;
/// <summary>
/// Migrate rating levels.
/// </summary>
#pragma warning disable CS0618 // Type or member is obsolete
[JellyfinMigration("2025-04-20T22:00:00", nameof(MigrateRatingLevels))]
[JellyfinMigrationBackup(JellyfinDb = true)]
#pragma warning restore CS0618 // Type or member is obsolete
internal class MigrateRatingLevels : IDatabaseMigrationRoutine
{
private readonly ILogger<MigrateRatingLevels> _logger;
private readonly IDbContextFactory<JellyfinDbContext> _provider;
private readonly ILocalizationManager _localizationManager;
public MigrateRatingLevels(
IDbContextFactory<JellyfinDbContext> provider,
ILoggerFactory loggerFactory,
ILocalizationManager localizationManager)
{
_provider = provider;
_localizationManager = localizationManager;
_logger = loggerFactory.CreateLogger<MigrateRatingLevels>();
}
/// <inheritdoc/>
public void Perform()
{
_logger.LogInformation("Recalculating parental rating levels based on rating string.");
using var context = _provider.CreateDbContext();
using var transaction = context.Database.BeginTransaction();
var ratings = context.BaseItems.AsNoTracking().Select(e => e.OfficialRating).Distinct();
foreach (var rating in ratings)
{
if (string.IsNullOrEmpty(rating))
{
int? value = null;
context.BaseItems
.Where(e => e.OfficialRating == null || e.OfficialRating == string.Empty)
.ExecuteUpdate(f => f.SetProperty(e => e.InheritedParentalRatingValue, value));
context.BaseItems
.Where(e => e.OfficialRating == null || e.OfficialRating == string.Empty)
.ExecuteUpdate(f => f.SetProperty(e => e.InheritedParentalRatingSubValue, value));
}
else
{
var ratingValue = _localizationManager.GetRatingScore(rating);
var score = ratingValue?.Score;
var subScore = ratingValue?.SubScore;
context.BaseItems
.Where(e => e.OfficialRating == rating)
.ExecuteUpdate(f => f.SetProperty(e => e.InheritedParentalRatingValue, score));
context.BaseItems
.Where(e => e.OfficialRating == rating)
.ExecuteUpdate(f => f.SetProperty(e => e.InheritedParentalRatingSubValue, subScore));
}
}
transaction.Commit();
}
}
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