public ActionResult updateTaskUser(int taskId, string status)
        {
            bool finished;

            try {
                var task = db.tasks.Where(e => e.taskId == taskId).First();
                task.status          = status;
                db.Entry(task).State = EntityState.Modified;
                db.SaveChanges();

                tasklog log = new tasklog();
                log.taskId = task.taskId;
                log.date   = DateTime.Now;

                if (task.status != "Pending")
                {
                    log.logcontent = "canceled the submission";
                    finished       = false;
                }
                else
                {
                    log.logcontent = "finished the task";
                    finished       = true;
                }

                log.assignto = task.assignto;
                db.tasklogs.Add(log);
                db.SaveChanges();

                projectactivity pact = new projectactivity();
                pact.projId   = task.projId;
                pact.taskId   = task.taskId;
                pact.status   = task.status;
                pact.assignto = task.assignto;
                pact.datetime = DateTime.Now;

                if (finished)
                {
                    pact.logContent = "finished the task.";
                }
                else
                {
                    pact.logContent = "canceled the submission.";
                }

                db.projectactivities.Add(pact);
                db.SaveChanges();

                updateLastActDate(task.projId);

                return(Json("Success", JsonRequestBehavior.AllowGet));
            }
            catch (Exception e)
            {
                return(Json("Error", JsonRequestBehavior.AllowGet));
            }
        }
        public ActionResult addTask(task task)
        {
            try {
                DateTime date = DateTime.Now;
                task.status    = "Available";
                task.startdate = date;
                db.tasks.Add(task);
                db.SaveChanges();

                for (int i = 0; i < 2; i++)
                {
                    DateTime date2 = DateTime.Now;
                    tasklog  log   = new tasklog();
                    log.taskId = task.taskId;
                    if (i == 0)
                    {
                        log.logcontent = "created the task";
                    }
                    else
                    {
                        log.logcontent = "assigned task to";
                    }
                    log.date     = date2;
                    log.assignto = task.assignto;
                    db.tasklogs.Add(log);
                    db.SaveChanges();
                }

                projectactivity pact = new projectactivity();
                pact.projId     = task.projId;
                pact.taskId     = task.taskId;
                pact.status     = task.status;
                pact.assignto   = task.assignto;
                pact.datetime   = date;
                pact.logContent = "created a task and assign to";
                db.projectactivities.Add(pact);
                db.SaveChanges();

                updateLastActDate(task.projId);

                return(Json("Success", JsonRequestBehavior.AllowGet));
            }
            catch (Exception e)
            {
                return(Json("Failed", JsonRequestBehavior.AllowGet));
            }
        }
        private tasklog checkChanged(task task)
        {
            var     oldtask = db.tasks.Where(e => e.taskId == task.taskId).First();
            tasklog log     = new tasklog();

            projectactivity pact = new projectactivity();

            pact.projId   = oldtask.projId;
            pact.taskId   = oldtask.taskId;
            pact.assignto = oldtask.assignto;
            pact.datetime = DateTime.Now;

            if (task.status == "Completed")
            {
                log.logcontent  = "approved the submission";
                pact.logContent = "approved the submission of";
                pact.status     = task.status;
            }
            else if (task.status == "Return")
            {
                task.status     = "Available";
                log.logcontent  = "returned your task";
                pact.logContent = "returned the task of";
                pact.status     = task.status;
            }
            else if (task.assignto != oldtask.assignto)
            {
                log.logcontent  = "assigned task to";
                pact.logContent = "assigned task to";
                pact.status     = task.status;
            }
            else
            {
                log.logcontent  = "assigned task to";
                pact.logContent = "assigned task to";
                pact.status     = task.status;
            }

            db.projectactivities.Add(pact);
            db.SaveChanges();

            return(log);
        }