public Album CreateAlbum(string name, string description, bool isPublic, IEnumerable<Tag> tags, int categoryId)
{
var oldAlbum = UnitOfWork.Albums.Get(album => album.Name.Equals(name));
if (oldAlbum != null)
throw new DataException("Album name already exists.");
if (tags == null)
{
tags = new Tag[] { };
}
var newAlbum = new AlbumEntity
{
CategoryId = categoryId,
CreatedOn = DateTime.UtcNow,
Description = description,
IsPublic = isPublic,
Name = name,
Tags = tags.Select(tag => new TagEntity { Id = tag.Id }).ToList(),
};
newAlbum = UnitOfWork.Albums.Add(newAlbum);
UnitOfWork.Commit();
return newAlbum.ToModel();
}
public Tag UpdateTag(Tag tag)
{
var oldTag = UnitOfWork.Tags.GetById(tag.Id);
if (oldTag == null)
{
throw new DataException(string.Format("Tag {0} does not exist.", tag.Name));
}
oldTag.Name = tag.Name;
oldTag.Description = tag.Description;
return UnitOfWork.Tags.Update(oldTag).ToModel();
}
public Album UpdateAlbum(int albumId, string name, string description, bool isPublic, IEnumerable<Tag> tags)
{
var oldAlbum = UnitOfWork.Albums.GetById(albumId);
if (oldAlbum == null)
throw new DataException("Album could not be retrieved.");
if (tags == null)
{
tags = new Tag[]{};
}
oldAlbum.Name = name;
oldAlbum.Description = description;
oldAlbum.IsPublic = isPublic;
oldAlbum.Tags = tags.Select(tag => new TagEntity { Id = tag.Id }).ToList();
oldAlbum = UnitOfWork.Albums.Update(oldAlbum);
UnitOfWork.Commit();
return oldAlbum.ToModel();
}
