/// <summary>
/// Returns a raw feed of past feed items without any extra HTML chrome. Used for AJAX updates to an existing feed.
/// </summary>
/// <param name="id">The ID of the first feed item received by the client.</param>
/// <returns></returns>
public ActionResult OldFeedItems(int id, int count, int userId, int errorType = -1, string keyword = "", int hash = 0)
{
try
{
var query = new ActivityFeedQuery();
query.CommentFilter = hash == 0 ? keyword : "#" + keyword;
if (errorType > 0)
{
query = new BuildErrorQuery(Db);
(query as BuildErrorQuery).BuildErrorTypeId = errorType;
}
BuildBasicQuery(query);
query.MaxLogId = id;
query.MaxQuerySize = count;
//used to build a feed for a single person. Useful for building profile-based feeds
if (userId > 0)
{
query.ClearSubscriptionSubjects();
query.AddSubscriptionSubject(Db.Users.Where(u => u.Id == userId).FirstOrDefault());
}
List <FeedItem> feedItems = query.Execute().ToList();
List <AggregateFeedItem> aggregateFeed = AggregateFeedItem.FromFeedItems(feedItems);
//build the "you and 5 others got this error"-type messages
FeedViewModel vm = new FeedViewModel();
BuildEventRelations(vm, feedItems);
ViewBag.RecentUserErrors = vm.RecentUserErrors;
ViewBag.RecentClassErrors = vm.RecentClassErrors;
ViewBag.ErrorTypes = vm.ErrorTypes;
return(View("AjaxFeed", aggregateFeed));
}
catch (Exception ex)
{
LogErrorMessage(ex);
return(RedirectToAction("FeedDown", "Error"));
}
}
/// <summary>
///
/// </summary>
/// <param name="id">The ID of the last event received by the user. Used for AJAX updates</param>
/// <returns></returns>
public ActionResult Index(long timestamp = -1, int errorType = -1, string errorTypeStr = "", string keyword = "", int hash = 0)
{
//turned off for now.
//return RedirectToAction("FeedDown", "Error");
try
{
var query = new ActivityFeedQuery();
query.CommentFilter = hash == 0 ? keyword : "#" + keyword;
//Two ways that we can receive an error type: by name (errorTypeStr) or by ID (errorType).
//First, we check the string and see if we can match it to an ID number. Then, we check
//to see if we have a valid ID number. If it doesn't work out, just work as normal.
if (string.IsNullOrEmpty(errorTypeStr) == false)
{
errorTypeStr = errorTypeStr.ToLower().Trim();
ErrorType type = Db.ErrorTypes.Where(e => e.Name.CompareTo(errorTypeStr) == 0).FirstOrDefault();
if (type != null)
{
errorType = type.Id;
}
}
if (errorType > 0)
{
query = new BuildErrorQuery(Db);
(query as BuildErrorQuery).BuildErrorTypeId = errorType;
}
BuildBasicQuery(query);
FeedViewModel vm = new FeedViewModel();
if (timestamp > 0)
{
DateTime pullDate = new DateTime(timestamp);
query.StartDate = pullDate;
}
else
{
query.MaxQuerySize = 40;
}
//and finally, retrieve our list of feed items
var maxIdQuery = Db.EventLogs.Select(l => l.Id);
if (maxIdQuery.Count() > 0)
{
vm.LastLogId = maxIdQuery.Max();
}
else
{
vm.LastLogId = 0;
}
List <FeedItem> feedItems = query.Execute().ToList();
List <AggregateFeedItem> aggregateFeed = AggregateFeedItem.FromFeedItems(feedItems);
this.UpdateLogSubscriptions(CurrentUser);
try
{
vm.LastPollDate = aggregateFeed.Select(a => a.MostRecentOccurance).Max();
}
catch (Exception)
{
vm.LastPollDate = DateTime.MinValue.AddDays(2);
}
vm.Feed = aggregateFeed;
vm.EventFilterOptions = ActivityFeedQuery.GetAllEvents().OrderBy(e => e.ToString()).ToList();
vm.UserEventFilterOptions = query.ActiveEvents;
vm.ErrorTypes = Db.ErrorTypes.Distinct().ToList();
vm.SelectedErrorType = new ErrorType();
if (errorType > 0)
{
vm.SelectedErrorType = Db.ErrorTypes.Where(e => e.Id == errorType).FirstOrDefault();
if (vm.SelectedErrorType == null)
{
vm.SelectedErrorType = new ErrorType();
}
}
//build possible courses and user types
vm.Courses = Db.Courses.ToList();
vm.CourseRoles.Add(CourseRole.Student);
vm.CourseRoles.Add(CourseRole.Assistant);
vm.CourseRoles.Add(CourseRole.Coordinator);
if (_userSettings != null)
{
vm.SelectedCourseId = _userSettings.CourseFilter;
vm.SelectedCourseRole = _userSettings.CourseRole;
}
//build the "you and 5 others got this error"-type messages
BuildEventRelations(vm, feedItems);
vm.Keyword = keyword;
return(View(vm));
}
catch (Exception ex)
{
LogErrorMessage(ex);
return(RedirectToAction("FeedDown", "Error"));
}
}
