/// <summary>
/// Updates the activity's last added date in the Session
/// </summary>
protected void UpdateActivityLastAdded(OkbConstants.ActivityCategories category)
{
if (category == OkbConstants.ActivityCategories.Joined) return; //no need to store join activity
Session["Activity:" + category.ToString()] = DateTime.Now;
}
/// <summary>
/// Returns true if it is ok to add the activity to the feed. It is OK if the time
/// elapsed is less than the pre-defined interval since the last time the activity was added.
/// We use Session to store the last added activity time. Prevents the activity feed from
/// being overloaded with a user's activities.
/// </summary>
protected bool IsOkToAddActivity(OkbConstants.ActivityCategories category)
{
DateTime threshold;
switch (category)
{
case OkbConstants.ActivityCategories.Joined:
return true;
case OkbConstants.ActivityCategories.UploadedPhoto:
threshold = DateTime.Now.AddMinutes(-OkbConstants.ACTIVITY_UPLOADEDPHOTO_INTERVAL);
break;
case OkbConstants.ActivityCategories.EditedProfileText:
threshold = DateTime.Now.AddMinutes(-OkbConstants.ACTIVITY_EDITEDPROFILE_INTERVAL);
break;
case OkbConstants.ActivityCategories.AnsweredQuestion:
threshold = DateTime.Now.AddMinutes(-OkbConstants.ACTIVITY_ANSWEREDQUESTION_INTERVAL);
break;
default:
//throw exception?
return true;
}
var lastAdded = Session["Activity:" + category.ToString()];
if (lastAdded == null || (DateTime)lastAdded < threshold)
{
return true;
}
return false;
}