mirror of
https://github.com/Radarr/Radarr.git
synced 2024-09-11 12:02:35 +02:00
54 lines
1.8 KiB
C#
54 lines
1.8 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Reflection;
|
|
using NzbDrone.Api.REST;
|
|
using NzbDrone.Common.Cache;
|
|
using NzbDrone.Core.Datastore;
|
|
|
|
namespace NzbDrone.Api.Extensions
|
|
{
|
|
public static class LazyExtensions
|
|
{
|
|
private static readonly ICached<MethodInfo> SetterCache = new Cached<MethodInfo>();
|
|
|
|
public static IEnumerable<TParent> LoadSubtype<TParent, TChild>(this IEnumerable<TParent> parents, Func<TParent, int> foreignKeySelector, IBasicRepository<TChild> childRepository)
|
|
where TChild : ModelBase, new()
|
|
where TParent : RestResource
|
|
{
|
|
var parentList = parents.Where(p => foreignKeySelector(p) != 0).ToList();
|
|
|
|
if (!parentList.Any())
|
|
{
|
|
return parents;
|
|
}
|
|
|
|
var ids = parentList.Select(foreignKeySelector).Distinct();
|
|
var childDictionary = childRepository.Get(ids).ToDictionary(child => child.Id, child => child);
|
|
|
|
var childSetter = GetChildSetter<TParent, TChild>();
|
|
|
|
foreach (var episode in parentList)
|
|
{
|
|
childSetter.Invoke(episode, new object[] { childDictionary[foreignKeySelector(episode)] });
|
|
}
|
|
|
|
return parents;
|
|
}
|
|
|
|
|
|
private static MethodInfo GetChildSetter<TParent, TChild>()
|
|
where TChild : ModelBase
|
|
where TParent : RestResource
|
|
{
|
|
var key = typeof(TChild).FullName + typeof(TParent).FullName;
|
|
|
|
return SetterCache.Get(key, () =>
|
|
{
|
|
var property = typeof(TParent).GetProperties().Single(c => c.PropertyType == typeof(TChild));
|
|
return property.GetSetMethod();
|
|
});
|
|
}
|
|
}
|
|
}
|