private void AttachCountry(TourDataModel tourDataModel)
{
var country = _dbContext.Countries
.FirstOrDefault(c => c.UrlName == tourDataModel.Country.UrlName && c.Category == tourDataModel.Country.Category);
tourDataModel.Country = country;
}
public bool CheckTourUnique(TourDataModel tourDataModel)
{
AttachCountry(tourDataModel);
var result = _dbContext.Tours.AsNoTracking().FirstOrDefault(c => c.TourId != tourDataModel.TourId &&
c.UrlName == tourDataModel.UrlName && c.Country.UrlName == tourDataModel.Country.UrlName) == null;
return(result);
}
public TourDataModel CreateTour(TourDataModel tourDataModel)
{
AttachCountry(tourDataModel);
var result = _dbContext.Tours.Add(tourDataModel).Entity;
_dbContext.SaveChanges();
return(result);
}
private void AddImages(TourDataModel tourDataModel, ICollection <TourImage> tourImages)
{
var newImageCollection = tourImages
.Where(i => tourDataModel.TourImages.All(db => db.ImageId != i.ImageId))
.ToList();
foreach (var newImage in newImageCollection)
{
tourDataModel.TourImages.Add(newImage);
}
}
public void DeleteTour(TourDataModel tourDataModel)
{
var tour = _dbContext.Tours
.Include(t => t.TourImages)
.FirstOrDefault(t => t.TourId == tourDataModel.TourId);
if (tour != null)
{
RemoveTourImages(tour);
_dbContext.Tours.Remove(tour);
_dbContext.SaveChanges();
}
}
private void DeleteImages(TourDataModel tourDataModel, ICollection <TourImage> tourImages)
{
var tourImageForDeleteCollection = tourDataModel.TourImages.Where(db => tourImages.All(i => i.ImageId != db.ImageId)).ToList();
foreach (var tourImageForDelete in tourImageForDeleteCollection)
{
tourDataModel.TourImages.Remove(tourImageForDelete);
var image = _dbContext.Images.FirstOrDefault(i => i.ImageId == tourImageForDelete.ImageId);
if (image != null)
{
_dbContext.Images.Remove(image);
}
}
}
public void UpdateTour(TourDataModel tourDataModel)
{
var tourImages = tourDataModel.TourImages;
tourDataModel.TourImages = new HashSet <TourImage>();
tourDataModel.CountryId = tourDataModel.Country.CountryId;
var entry = _dbContext.Entry(tourDataModel);
entry.State = EntityState.Modified;
entry.Collection(c => c.TourImages).Load();
UpdateImages(tourDataModel, tourImages);
_dbContext.SaveChanges();
}
private void RemoveTourImages(TourDataModel tourDataModel)
{
var tourImageCollection = tourDataModel.TourImages?.ToList();
if (tourImageCollection != null && tourImageCollection.Any())
{
foreach (var tourImage in tourImageCollection)
{
var image = tourImage.Image;
if (image != null)
{
_dbContext.Images.Remove(image);
}
}
}
}
private void UpdateImages(TourDataModel tourDataModel, ICollection <TourImage> tourImages)
{
AddImages(tourDataModel, tourImages);
DeleteImages(tourDataModel, tourImages);
}