private ICollection <PlatformType> GetPlatformTypesFromIds(ICollection <int> platformTypeIds)
{
var pipeline = new Pipeline <PlatformType>();
pipeline.Register(_filterFactory.MakePlatformTypesForIdsFilter(platformTypeIds));
List <PlatformType> results = UnitOfWork.PlatformTypes.Find(pipeline).ToList();
if (results.Count != platformTypeIds.Count)
{
throw new EntityNotFoundException(typeof(PlatformType));
}
return(results);
}