/// <summary>
/// Retrieves photos for the selected theme, user, or user's friends.
/// </summary>
/// <param name="hasThemeIdParam">Indicates photos should be scoped to a theme.</param>
/// <param name="hasUserIdParam">Indicates photos should be scoped to a user.</param>
/// <param name="isFriends">Indicates photos are to be retrieved for a user's friends.
/// </param>
/// <param name="userId">The PhotoHunt user id to retrieve photos or the user's friend's
/// photos.</param>
/// <param name="selectedTheme">The selected PhotoHunt theme.</param>
/// <returns>A list of objects that can be returned as JSON.</returns>
static public ArrayList GetPhotos(bool hasThemeIdParam, bool hasUserIdParam,
bool isFriends, int userId, Theme selectedTheme)
{
// This will store JSONified representations of photo objects.
ArrayList photos = new ArrayList();
if (hasThemeIdParam && hasUserIdParam)
{
// Return the photos for this user for this theme.
PhotohuntContext db = new PhotohuntContext();
var query = from b in db.Photos
where b.themeId.Equals(selectedTheme.id) &&
b.ownerUserId.Equals(userId)
select b;
if (isFriends)
{
query = from b in db.Photos
where b.themeId.Equals(selectedTheme.id) &&
b.ownerUserId.Equals(userId)
select b;
}
foreach (Photo photo in query)
{
photo.voted = !VotesHelper.CanVote(userId, photo.id);
photos.Add(photo);
}
}
else if (hasUserIdParam)
{
// Return this user's photos.
PhotohuntContext db = new PhotohuntContext();
var query = from b in db.Photos
where b.ownerUserId.Equals(userId)
select b;
foreach (Photo photo in query)
{
photos.Add(photo);
}
}
else if (hasThemeIdParam)
{
// Return the photos for the current theme
PhotohuntContext db = new PhotohuntContext();
var query = from b in db.Photos
where b.themeId.Equals(selectedTheme.id)
select b;
foreach (Photo photo in query)
{
photos.Add(photo);
}
}
return(photos);
}
protected void Page_Load(object sender, EventArgs e)
{
try
{
int photoId = int.Parse(Request["photoId"]);
VotesHelper voteObject = new VotesHelper();
voteObject.DoVote(Context, photoId);
}
catch (NullReferenceException nre) {
System.Diagnostics.Debug.WriteLine("An error occurred: There was a request for a " +
"photo that is not in the datastore." + nre.StackTrace);
}
catch (ArgumentNullException ane) {
System.Diagnostics.Debug.WriteLine("An error occurred: There was a request for a " +
"photo that is not in the datastore." + ane.StackTrace);
}
}
