public void RemoveLink(long userId, long linkId)
{
if (!UserDao.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 <LinkDetails>(userId, "linkId", linkId);
}
try
{
LinkDao.Remove(linkId);
}
catch (InstanceNotFoundException <Link> ex)
{
throw new InternalErrorException(ex);
}
}
public LinkDetails GetLink(long linkId)
{
Link link;
try
{
link = LinkDao.Find(linkId);
}
catch (InstanceNotFoundException <Link> ex)
{
throw new InstanceNotFoundException <LinkDetails>(ex);
}
UserProfile user;
try
{
user = UserDao.Find(link.userId);
}
catch (InstanceNotFoundException <UserProfile> ex)
{
throw new InternalErrorException(ex);
}
int rating = RatingDao.CalculateValueForLink(link.linkId);
return(new LinkDetails(link.linkId, link.userId, user.userLogin, link.movieId, link.name, link.description, link.url, rating, link.reportRead.GetValueOrDefault(), link.date));
}
public void SetReportedLinkAsRead(long userId, long linkId)
{
if (!UserDao.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 (userId != link.UserProfile.userId)
{
throw new UserNotAuthorizedException <LinkDetails>(userId, "linkId", linkId);;
}
link.reportRead = true;
try
{
LinkDao.Update(link);
}
catch (InstanceNotFoundException <Link> ex)
{
throw new InternalErrorException(ex);
}
}
public void UpdateLink(long userId, long linkId, string name, string description)
{
if (!UserDao.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.name != name) && (LinkDao.ExistsForMovieAndName(link.movieId, name)))
{
throw new DuplicateInstanceException <LinkDetails>("movieId", link.movieId, "name", name);
}
if (userId != link.UserProfile.userId)
{
throw new UserNotAuthorizedException <LinkDetails>(userId, "linkId", linkId);;
}
link.name = name;
link.description = description;
try
{
LinkDao.Update(link);
}
catch (InstanceNotFoundException <Link> 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);
}
}
public void RemoveLabelsForLink(long userId, long linkId)
{
if (!UserDao.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 <LinkDetails>(userId, linkId);
}
List <Label> removableLabels = new List <Label>();
foreach (Label label in link.Labels)
{
if (label.Links.Contains(link))
{
removableLabels.Add(label);
}
}
foreach (Label label in removableLabels)
{
label.Links.Remove(link);
link.Labels.Remove(label);
LinkDao.Update(link);
if (label.Links.Count > 0)
{
try
{
LabelDao.Update(label);
}
catch (InstanceNotFoundException <Label> ex)
{
throw new InternalErrorException(ex);
}
}
else
{
try
{
LabelDao.Remove(label.labelId);
}
catch (InstanceNotFoundException <Label> ex)
{
throw new InternalErrorException(ex);
}
}
}
}
public void SetLabelsForLink(long userId, long linkId, List <string> labelTexts)
{
if (!UserDao.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.userId != userId)
{
throw new UserNotAuthorizedException <LinkDetails>(userId, "linkId", linkId);
}
List <Label> labelsToSet = new List <Label>();
foreach (string labelText in labelTexts.Distinct())
{
if (labelText != null)
{
string trimmedLabelText = labelText.Trim();
if (trimmedLabelText != "")
{
Label label;
try
{
label = LabelDao.FindByText(trimmedLabelText);
}
catch (InstanceNotFoundException <Label> )
{
label = Label.CreateLabel(-1, trimmedLabelText);
LabelDao.Create(label);
}
catch (DuplicateInstanceException <Label> ex)
{
throw new InternalErrorException(ex);
}
if (!labelsToSet.Contains(label))
{
labelsToSet.Add(label);
}
}
}
}
List <Label> labelsAlreadyForLink;
try
{
labelsAlreadyForLink = LabelDao.FindForLink(linkId);
}
catch (InstanceNotFoundException <Label> )
{
labelsAlreadyForLink = new List <Label>();
}
foreach (Label labelAlreadyForLink in labelsAlreadyForLink)
{
if (!labelsToSet.Contains(labelAlreadyForLink))
{
link.Labels.Remove(labelAlreadyForLink);
if (labelAlreadyForLink.Links.Count == 1)
{
labelAlreadyForLink.Links.Remove(link);
try
{
LabelDao.Update(labelAlreadyForLink);
}
catch (InstanceNotFoundException <Label> ex)
{
throw new InternalErrorException(ex);
}
}
else
{
try
{
LabelDao.Remove(labelAlreadyForLink.labelId);
}
catch (InstanceNotFoundException <Label> ex)
{
throw new InternalErrorException(ex);
}
}
}
else
{
labelsToSet.Remove(labelAlreadyForLink);
}
}
foreach (Label label in labelsToSet)
{
if (!link.Labels.Contains(label))
{
link.Labels.Add(label);
label.Links.Add(link);
try
{
LabelDao.Update(label);
}
catch (InstanceNotFoundException <Label> ex)
{
throw new InternalErrorException(ex);
}
}
}
try
{
LinkDao.Update(link);
}
catch (InstanceNotFoundException <Link> ex)
{
throw new InternalErrorException(ex);
}
}
public Link FindLink(long linkId)
{
return(LinkDao.Find(linkId));
}
