public void Update(PictureDetailModel item)
{
using (var context = new MyPhotoDbContext())
{
var entity = context.Pictures.Include(x => x.PictureObjectCollection).First(picture => picture.Id == item.Id);
entity.Name = item.Name;
entity.Description = item.Description;
entity.Format = item.Format;
entity.PhotoTakenDate = item.PhotoTakenDate;
entity.ResolutionHeight = item.ResolutionHeight;
entity.ResolutionWidth = item.ResolutionWidth;
foreach (var position in item.PositionCollection)
{
if (position.Id == Guid.Empty || context.PositionsInPicture.Include(x => x.PictureObject).FirstOrDefault(x => x.Id == position.Id) == null)
{
var positionInPictureMapper = new PositionInPictureMapper();
var helper = position.PictureObject;
if (position.Id == Guid.Empty)
{
position.Id = Guid.NewGuid();
}
position.PictureObject = null;
entity.PictureObjectCollection.Add(positionInPictureMapper.MapToEntity(position));
var personObject = context.Persons.FirstOrDefault(x => x.Id == helper.Id);
if (personObject == null)
{
var objectInPicture = context.Objects.Find(helper.Id);
if (objectInPicture != null)
{
entity.PictureObjectCollection.First(x => x.Id == position.Id).PictureObject = objectInPicture;
}
}
else
{
entity.PictureObjectCollection.First(x => x.Id == position.Id).PictureObject = personObject;
}
}
else
{
_positionInPictureRepository.Update(position);
}
}
var removeCollecction = new List <PositionInPictureEntity>();
foreach (var positionInPictureEntity in entity.PictureObjectCollection)
{
if (item.PositionCollection.FirstOrDefault(x => x.Id == positionInPictureEntity.Id) == null)
{
removeCollecction.Add(positionInPictureEntity);
}
}
foreach (var positionInPictureEntity in removeCollecction)
{
entity.PictureObjectCollection.Remove(positionInPictureEntity);
}
context.SaveChanges();
}
}
