/// <summary>
/// Deletes the specified media object.
/// </summary>
/// <param name="mediaObject">The media object.</param>
public void Delete(IGalleryObject mediaObject)
{
var mDto = Find(mediaObject.Id);
if (mDto != null)
{
Delete(mDto);
Save(); // Cascade relationship will auto-delete metadata items
}
var tagRepo = new TagRepository(Context);
tagRepo.DeleteUnusedTags();
}
/// <summary>
/// Persists the tags, if applicable, to the data store. Applies to
/// <see cref="MetadataItemName.Tags" /> and
/// <see cref="MetadataItemName.People" />.
/// </summary>
/// <param name="metadataDto">An instance of <see cref="MetadataDto"/>.</param>
/// <param name="galleryId"></param>
private void SaveTags(MetadataDto metadataDto, int galleryId)
{
if ((metadataDto.MetaName != Business.Metadata.MetadataItemName.Tags) &&
(metadataDto.MetaName != Business.Metadata.MetadataItemName.People))
{
return;
}
var tags = ParseTags(metadataDto.Value);
var tagRepo = new TagRepository(Context); // Don't put in using construct because we don't want our Context disposed
tagRepo.Save(metadataDto.MetaName, tags);
var metaTagRepo = new MetadataTagRepository(Context); // Don't put in using construct because we don't want our Context disposed
metaTagRepo.Save(metadataDto, tags, galleryId);
}
/// <summary>
/// Permanently delete the specified album from the data store, including any
/// child albums, media objects, and metadata. This action cannot be undone.
/// </summary>
/// <param name="album">The <see cref="IAlbum"/> to delete from the data store.</param>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="album" /> is null.</exception>
public void Delete(IAlbum album)
{
if (album == null)
{
throw new ArgumentNullException("album");
}
// Get a list of this album and all its child albums. Then delete.
var albumIds = new List <int> {
album.Id
};
albumIds.AddRange(GetChildAlbumIds(album));
var repo = new MetadataRepository(Context);
foreach (var aDto in Where(a => albumIds.Contains(a.AlbumId), m => m.Metadata))
{
// We must explicitly delete the album metadata because we don't have a cascade
// delete relation between them.
foreach (var mDto in aDto.Metadata.ToList())
{
repo.Delete(mDto);
}
// The media objects belonging to this album will be automatically deleted through
// the cascade delete defined in the database.
Delete(aDto);
}
Save();
var tagRepo = new TagRepository(Context);
tagRepo.DeleteUnusedTags();
}
