// GET: /Gallery/
public async Task <IActionResult> Index(List <int> tags)
{
IEnumerable <GalleryEntry> galleryEntries = await _galleryRepository.GetGalleryEntries();
galleryEntries = galleryEntries.Where(galleryEntry =>
tags.All(tag => galleryEntry.Tags.Select(t => t.TagID).Contains(tag)));
ApplicationUser user = await _userManager.GetUserAsync(User);
// loop over each gallery entry and add any computed fields
foreach (GalleryEntry galleryEntry in galleryEntries)
{
// setting the thumbnail image
galleryEntry.Thumbnail = _galleryRepository.ComputeThumbnail(galleryEntry);
// seting the gallery entry number of likes
galleryEntry.Likes = await _galleryRepository.ComputeNLikes(galleryEntry);
// Boolean has the picture been favorited by this user already
if (user != null)
{
galleryEntry.Faved = _galleryRepository.isFavorited(galleryEntry.GalleryEntryID, user.Id);
}
if (tags.Count > 0)
{
galleryEntry.Filter = tags.All(tag => galleryEntry.Tags.Select(t => t.TagID).Contains(tag));
}
else
{
galleryEntry.Filter = false;
}
}
galleryEntries = galleryEntries.OrderByDescending(galleryEntry => galleryEntry.Likes);
// fetch tags from the database
IEnumerable <Tag> database_tags = await _tagRepository.GetTags();
// Transform list of tags into a list of tuples with the id, name, and bool to see if it should be checked
IEnumerable <Tuple <int, string, bool> > tupled_database_tags = database_tags
.Select(tag => Tuple.Create(tag.TagID, tag.Name, tags.Contains(tag.TagID)));
// pass list of tuples to the ViewData for the View to use
ViewData["tags"] = tupled_database_tags;
bool logged_in = user != null;
ViewData["logged_in"] = logged_in;
return(View(galleryEntries));
}