95 lines
2.8 KiB
C#
95 lines
2.8 KiB
C#
using System;
|
|
using System.ComponentModel.DataAnnotations;
|
|
using System.ComponentModel.DataAnnotations.Schema;
|
|
using Jellyfin.Data.Interfaces;
|
|
|
|
namespace Jellyfin.Data.Entities.Libraries
|
|
{
|
|
/// <summary>
|
|
/// An entity representing a collection item.
|
|
/// </summary>
|
|
public class CollectionItem : IHasConcurrencyToken
|
|
{
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="CollectionItem"/> class.
|
|
/// </summary>
|
|
/// <param name="collection">The collection.</param>
|
|
/// <param name="previous">The previous item.</param>
|
|
/// <param name="next">The next item.</param>
|
|
public CollectionItem(Collection collection, CollectionItem previous, CollectionItem next)
|
|
{
|
|
if (collection == null)
|
|
{
|
|
throw new ArgumentNullException(nameof(collection));
|
|
}
|
|
|
|
collection.Items.Add(this);
|
|
|
|
if (next != null)
|
|
{
|
|
Next = next;
|
|
next.Previous = this;
|
|
}
|
|
|
|
if (previous != null)
|
|
{
|
|
Previous = previous;
|
|
previous.Next = this;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="CollectionItem"/> class.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Default constructor. Protected due to required properties, but present because EF needs it.
|
|
/// </remarks>
|
|
protected CollectionItem()
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the id.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Identity, Indexed, Required.
|
|
/// </remarks>
|
|
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
|
|
public int Id { get; set; }
|
|
|
|
/// <inheritdoc />
|
|
[ConcurrencyCheck]
|
|
public uint RowVersion { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the library item.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// Required.
|
|
/// </remarks>
|
|
public virtual LibraryItem LibraryItem { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the next item in the collection.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// TODO check if this properly updated dependant and has the proper principal relationship.
|
|
/// </remarks>
|
|
public virtual CollectionItem Next { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets the previous item in the collection.
|
|
/// </summary>
|
|
/// <remarks>
|
|
/// TODO check if this properly updated dependant and has the proper principal relationship.
|
|
/// </remarks>
|
|
public virtual CollectionItem Previous { get; set; }
|
|
|
|
/// <inheritdoc />
|
|
public void OnSavingChanges()
|
|
{
|
|
RowVersion++;
|
|
}
|
|
}
|
|
}
|