jellyfin/Emby.Server.Implementations/Sorting/ParentIndexNumberComparer.cs
Maxr1998 0aaf2f470a
Implement Comparers for (Parent)IndexNumber
Can be used in item queries to sort by ParentIndexNumber and IndexNumber (used for disc and track numbers for example).
2022-02-17 01:35:59 +01:00

51 lines
1.3 KiB
C#

using System;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Sorting;
using MediaBrowser.Model.Querying;
namespace Emby.Server.Implementations.Sorting
{
/// <summary>
/// Class ParentIndexNumberComparer.
/// </summary>
public class ParentIndexNumberComparer : IBaseItemComparer
{
/// <summary>
/// Gets the name.
/// </summary>
/// <value>The name.</value>
public string Name => ItemSortBy.ParentIndexNumber;
/// <summary>
/// Compares the specified x.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns>System.Int32.</returns>
public int Compare(BaseItem? x, BaseItem? y)
{
if (x == null)
{
throw new ArgumentNullException(nameof(x));
}
if (y == null)
{
throw new ArgumentNullException(nameof(y));
}
if (!x.ParentIndexNumber.HasValue)
{
return -1;
}
if (!y.ParentIndexNumber.HasValue)
{
return 1;
}
return x.ParentIndexNumber.Value.CompareTo(y.ParentIndexNumber.Value);
}
}
}