public HttpResponseMessage SavePurchaseRequest(Entities.TrnPurchaseRequest objPurchaseRequest, String id)
        {
            try
            {
                var currentUser = from d in db.MstUsers where d.UserId == User.Identity.GetUserId() select d;
                if (currentUser.Any())
                {
                    var currentUserId = currentUser.FirstOrDefault().Id;

                    var purchaseRequest = from d in db.TrnPurchaseRequests where d.Id == Convert.ToInt32(id) select d;
                    if (purchaseRequest.Any())
                    {
                        if (!purchaseRequest.FirstOrDefault().IsLocked)
                        {
                            String oldObject = auditTrail.GetObjectString(purchaseRequest.FirstOrDefault());

                            var savePurchaseRequest = purchaseRequest.FirstOrDefault();
                            savePurchaseRequest.PRDate          = Convert.ToDateTime(objPurchaseRequest.PRDate);
                            savePurchaseRequest.SupplierId      = objPurchaseRequest.SupplierId;
                            savePurchaseRequest.TermId          = objPurchaseRequest.TermId;
                            savePurchaseRequest.ManualPRNumber  = objPurchaseRequest.ManualPRNumber;
                            savePurchaseRequest.DateNeeded      = Convert.ToDateTime(objPurchaseRequest.DateNeeded);
                            savePurchaseRequest.Remarks         = objPurchaseRequest.Remarks;
                            savePurchaseRequest.IsClose         = objPurchaseRequest.IsClose;
                            savePurchaseRequest.RequestedById   = objPurchaseRequest.RequestedById;
                            savePurchaseRequest.CheckedById     = objPurchaseRequest.CheckedById;
                            savePurchaseRequest.ApprovedById    = objPurchaseRequest.ApprovedById;
                            savePurchaseRequest.Status          = objPurchaseRequest.Status;
                            savePurchaseRequest.UpdatedById     = currentUserId;
                            savePurchaseRequest.UpdatedDateTime = DateTime.Now;

                            db.SubmitChanges();

                            String newObject = auditTrail.GetObjectString(purchaseRequest.FirstOrDefault());
                            auditTrail.InsertAuditTrail(currentUser.FirstOrDefault().Id, GetType().Name, MethodBase.GetCurrentMethod().Name, oldObject, newObject);

                            return(Request.CreateResponse(HttpStatusCode.OK));
                        }
                        else
                        {
                            return(Request.CreateResponse(HttpStatusCode.BadRequest, "Saving Error. These purchase request details are already locked."));
                        }
                    }
                    else
                    {
                        return(Request.CreateResponse(HttpStatusCode.NotFound, "Data not found. These purchase request details are not found in the server."));
                    }
                }
                else
                {
                    return(Request.CreateResponse(HttpStatusCode.BadRequest, "Theres no current user logged in."));
                }
            }
            catch (Exception e)
            {
                Debug.WriteLine(e);
                return(Request.CreateResponse(HttpStatusCode.InternalServerError, "Something's went wrong from the server."));
            }
        }
        public HttpResponseMessage LockPurchaseRequest(Entities.TrnPurchaseRequest objPurchaseRequest, String id)
        {
            try
            {
                var currentUser = from d in db.MstUsers
                                  where d.UserId == User.Identity.GetUserId()
                                  select d;

                if (currentUser.Any())
                {
                    var currentUserId = currentUser.FirstOrDefault().Id;

                    var userForms = from d in db.MstUserForms
                                    where d.UserId == currentUserId &&
                                    d.SysForm.FormName.Equals("PurchaseRequestDetail")
                                    select d;

                    if (userForms.Any())
                    {
                        if (userForms.FirstOrDefault().CanLock)
                        {
                            var purchaseRequest = from d in db.TrnPurchaseRequests
                                                  where d.Id == Convert.ToInt32(id)
                                                  select d;

                            if (purchaseRequest.Any())
                            {
                                if (!purchaseRequest.FirstOrDefault().IsLocked)
                                {
                                    var lockPurchaseRequest = purchaseRequest.FirstOrDefault();
                                    lockPurchaseRequest.PRDate          = Convert.ToDateTime(objPurchaseRequest.PRDate);
                                    lockPurchaseRequest.SupplierId      = objPurchaseRequest.SupplierId;
                                    lockPurchaseRequest.TermId          = objPurchaseRequest.TermId;
                                    lockPurchaseRequest.ManualPRNumber  = objPurchaseRequest.ManualPRNumber;
                                    lockPurchaseRequest.DateNeeded      = Convert.ToDateTime(objPurchaseRequest.DateNeeded);
                                    lockPurchaseRequest.Remarks         = objPurchaseRequest.Remarks;
                                    lockPurchaseRequest.IsClose         = objPurchaseRequest.IsClose;
                                    lockPurchaseRequest.RequestedById   = objPurchaseRequest.RequestedById;
                                    lockPurchaseRequest.CheckedById     = objPurchaseRequest.CheckedById;
                                    lockPurchaseRequest.ApprovedById    = objPurchaseRequest.ApprovedById;
                                    lockPurchaseRequest.IsLocked        = true;
                                    lockPurchaseRequest.UpdatedById     = currentUserId;
                                    lockPurchaseRequest.UpdatedDateTime = DateTime.Now;

                                    db.SubmitChanges();

                                    if (purchaseRequest.FirstOrDefault().TrnPurchaseRequestItems.Any())
                                    {
                                        foreach (var purchaseRequestItem in purchaseRequest.FirstOrDefault().TrnPurchaseRequestItems.ToList())
                                        {
                                            var item = from d in db.MstArticles
                                                       where d.Id == purchaseRequestItem.ItemId
                                                       select d;

                                            if (item.Any())
                                            {
                                                var updateItem = item.FirstOrDefault();
                                                updateItem.Cost = purchaseRequestItem.Cost;
                                            }
                                        }

                                        db.SubmitChanges();
                                    }

                                    return(Request.CreateResponse(HttpStatusCode.OK));
                                }
                                else
                                {
                                    return(Request.CreateResponse(HttpStatusCode.BadRequest, "Locking Error. These purchase request details are already locked."));
                                }
                            }
                            else
                            {
                                return(Request.CreateResponse(HttpStatusCode.NotFound, "Data not found. These purchase request details are not found in the server."));
                            }
                        }
                        else
                        {
                            return(Request.CreateResponse(HttpStatusCode.BadRequest, "Sorry. You have no rights to lock purchase request."));
                        }
                    }
                    else
                    {
                        return(Request.CreateResponse(HttpStatusCode.BadRequest, "Sorry. You have no access for this purchase request page."));
                    }
                }
                else
                {
                    return(Request.CreateResponse(HttpStatusCode.BadRequest, "Theres no current user logged in."));
                }
            }
            catch (Exception e)
            {
                Debug.WriteLine(e);
                return(Request.CreateResponse(HttpStatusCode.InternalServerError, "Something's went wrong from the server."));
            }
        }