public void ValidateStep1Request(RequestMandatoryViewModel request)
{
if (request.DateDue <= DateTime.Today)
{
throw new Exception("Due date must be in the future.");
}
}
public void SaveRequest(int userId, RequestMandatoryViewModel requestMandatory, IList <RequestItemViewModel> itemsToMerge = null, RequestOptionalViewModel requestOptional = null)
{
ValidateStep1Request(requestMandatory);
RequestStatus status = RequestStatus.IN_PROGRESS;
if (requestOptional != null)
{
ValidateStep3Request(requestOptional);
status = RequestStatus.ACTIVE;
}
int categoryId = requestMandatory.CategoryId.Value;
using (var context = new ApplicationContext())
{
var category = context.Categories.Where(x => x.Id == categoryId).SingleOrDefault();
var area = context.Areas.Where(x => x.Id == SessionFacade.AreaId).SingleOrDefault();
Request entity;
if (requestMandatory.Id != null)
{
entity = context.Requests.Where(x => x.Id == requestMandatory.Id).SingleOrDefault();
// Caution! Accessing the request of another user!
if (userId != entity.UserId)
{
throw new UnauthorizedAccessException();
}
if (entity.Status == RequestStatus.COMPLETED)
{
throw new Exception("Request already completed");
}
// If already started or was suspendend, keep that way
if (entity.Status == RequestStatus.ACTIVE || entity.Status == RequestStatus.SUSPENDED)
{
status = entity.Status;
}
entity.Area = area;
entity.Status = status;
entity.DateDue = requestMandatory.DateDue;
entity.Category = category;
entity.Description = requestMandatory.Description;
entity.Subtitle = requestMandatory.Subtitle;
entity.Title = requestMandatory.Title;
}
else
{
entity = new Request()
{
Area = area,
Status = status,
DateCreated = DateTime.Now,
DateDue = requestMandatory.DateDue,
Category = category,
Description = requestMandatory.Description,
Progress = 0,
Subtitle = requestMandatory.Subtitle,
Title = requestMandatory.Title,
Items = new List <RequestItem>(),
UserId = userId,
VisualizationCount = 0
};
context.Requests.Add(entity);
}
if (itemsToMerge != null)
{
var currentList = entity.Items;
var newList = itemsToMerge;
var removeList = currentList
.Where(currentItem => newList.All(newItem => currentItem.Id != newItem.Id))
.ToList();
var addList = newList
.Where(newItem => currentList.All(currentItem => currentItem.Id != newItem.Id))
.ToList();
var updateList = currentList
.Join(newList,
currentItem => currentItem.Id,
newItem => newItem.Id,
(currentItem, newItem) => new { CurrentItem = currentItem, NewItem = newItem })
.ToList();
foreach (var itemToAdd in addList)
{
var item = new RequestItem
{
Quantity = itemToAdd.Quantity,
InitialQuantity = itemToAdd.Quantity,
Request = entity,
Title = itemToAdd.Title,
Detail = itemToAdd.Detail,
Type = itemToAdd.Type
};
context.RequestItems.Add(item);
}
foreach (var itemToRemove in removeList)
{
context.RequestItems.Remove(itemToRemove);
}
foreach (var item in updateList)
{
item.CurrentItem.Title = item.NewItem.Title;
item.CurrentItem.Detail = item.NewItem.Detail;
item.CurrentItem.Quantity = item.NewItem.Quantity;
item.CurrentItem.InitialQuantity = item.NewItem.Quantity;
item.CurrentItem.Type = item.NewItem.Type;
}
}
if (requestOptional != null)
{
entity.Keywords = requestOptional.Keywords;
entity.VideoURL = requestOptional.VideoURL;
if (requestOptional.Photo != null)
{
byte[] fileData = null;
using (var binaryReader = new BinaryReader(requestOptional.Photo.InputStream))
{
fileData = binaryReader.ReadBytes(requestOptional.Photo.ContentLength);
}
entity.Photo = fileData;
}
}
context.SaveChanges();
requestMandatory.Id = entity.Id;
}
}
