public int GetRating(long userId, long linkId)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
try
{
return(RatingDao.FindForUserAndLink(userId, linkId).value);
}
catch (InstanceNotFoundException <Rating> )
{
return(0);
}
catch (DuplicateInstanceException <Rating> ex)
{
throw new InternalErrorException(ex);
}
}
public FavoriteDetails GetFavorite(long userId, long linkId)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
Favorite favorite;
try
{
favorite = FavoriteDao.FindForUserAndLink(userId, linkId);
}
catch (InstanceNotFoundException <Favorite> ex)
{
throw new InstanceNotFoundException <FavoriteDetails>(ex.Properties);
}
catch (DuplicateInstanceException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
return(new FavoriteDetails(favorite.favoriteId, favorite.linkId, favorite.name, favorite.description, favorite.date));
}
public ListBlock <FavoriteDetails> GetFavoritesForUser(long userId, int startIndex, int count)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
ListBlock <Favorite> favorites;
try
{
favorites = FavoriteDao.ListForUser(userId, startIndex, count);
}
catch (InstanceNotFoundException <Favorite> )
{
return(new ListBlock <FavoriteDetails>(startIndex, false));
}
catch (NoMoreItemsException <Favorite> )
{
return(new ListBlock <FavoriteDetails>(startIndex, false));
}
List <FavoriteDetails> details = new List <FavoriteDetails>();
foreach (Favorite favorite in favorites)
{
details.Add(new FavoriteDetails(favorite.favoriteId, favorite.linkId, favorite.name, favorite.description, favorite.date));
}
return(new ListBlock <FavoriteDetails>(details, favorites.Index, favorites.HasMore));
}
public long AddToFavorites(long userId, long linkId, string name, string description)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
if (FavoriteDao.ExistsForUserAndLink(userId, linkId))
{
throw new DuplicateInstanceException <FavoriteDetails>("userId", userId, "linkId", linkId);
}
Favorite favorite = Favorite.CreateFavorite(-1, userId, linkId, name, description, DateTime.Now);
try
{
FavoriteDao.Create(favorite);
}
catch (DuplicateInstanceException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
return(favorite.favoriteId);
}
public int CountFavoritesForUser(long userId)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
return(FavoriteDao.CountForUser(userId));
}
public bool HasInFavorites(long userId, long linkId)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
return(FavoriteDao.ExistsForUserAndLink(userId, linkId));
}
public void UpdateFavorite(long userId, long linkId, string name, string description)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
Favorite favorite;
try
{
favorite = FavoriteDao.FindForUserAndLink(userId, linkId);
}
catch (InstanceNotFoundException <Favorite> ex)
{
throw new InstanceNotFoundException <FavoriteDetails>(ex.Properties);
}
catch (DuplicateInstanceException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
favorite.name = name;
favorite.description = description;
try
{
FavoriteDao.Update(favorite);
}
catch (InstanceNotFoundException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
}
public void RemoveFromFavorites(long userId, long linkId)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
if (!LinkDao.Exists(linkId))
{
throw new InstanceNotFoundException <LinkDetails>("linkId", linkId);
}
Favorite favorite;
try
{
favorite = FavoriteDao.FindForUserAndLink(userId, linkId);
}
catch (InstanceNotFoundException <Favorite> ex)
{
throw new InstanceNotFoundException <FavoriteDetails>(ex.Properties);
}
catch (DuplicateInstanceException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
try
{
FavoriteDao.Remove(favorite.favoriteId);
}
catch (InstanceNotFoundException <Favorite> ex)
{
throw new InternalErrorException(ex);
}
}
public long Rate(long userId, long linkId, int value)
{
if (!UserProfileDao.Exists(userId))
{
throw new InstanceNotFoundException <UserProfileDetails>("userId", userId);
}
Link link;
try
{
link = LinkDao.Find(linkId);
}
catch (InstanceNotFoundException <Link> ex)
{
throw new InstanceNotFoundException <LinkDetails>(ex.Properties);
}
if (link.UserProfile.userId == userId)
{
throw new UserNotAuthorizedException <RatingDetails>(userId, "linkId", linkId);
}
if (!RatingDao.ExistsForUserAndLink(userId, linkId))
{
if (value == 0)
{
return(-1);
}
Rating rating = Rating.CreateRating(-1, userId, linkId, value, DateTime.Now);
try
{
RatingDao.Create(rating);
}
catch (DuplicateInstanceException <Rating> ex)
{
throw new InternalErrorException(ex);
}
return(rating.ratingId);
}
else
{
Rating rating;
try
{
rating = RatingDao.FindForUserAndLink(userId, linkId);
}
catch (InstanceNotFoundException <Rating> ex)
{
throw new InternalErrorException(ex);
}
catch (DuplicateInstanceException <Rating> ex)
{
throw new InternalErrorException(ex);
}
if (value == 0)
{
try
{
RatingDao.Remove(rating.ratingId);
}
catch (InstanceNotFoundException <Rating> ex)
{
throw new InternalErrorException(ex);
}
return(-1);
}
rating.value = value;
try
{
RatingDao.Update(rating);
}
catch (InstanceNotFoundException <Rating> ex)
{
throw new InternalErrorException(ex);
}
return(rating.ratingId);
}
}