public static TEntity CreateAndAdd <TEntity>(this EStoreEntities db) where TEntity : class
{
var stPerm = db.Set <TEntity>().Create();
db.Set <TEntity>().Add(stPerm);
return(stPerm);
}
public static ProductItem GetProductItem(this EStoreEntities context, long productId)
{
var forSaleState = ProductSingleStateEnum.ForSale.CastTo <int>();
var item = context.Set <tblProduct>()
.Where(x => x.Id == productId)
.Select(x => new ProductItem
{
Id = x.Id,
Descripton = x.Descripton,
CategoryId = x.CategoryId,
CategoryName = x.tblProductCategory.Name,
Name = x.Name,
YandexUrl = x.YandexUrl,
Specs = x.Specs,
Price = x.tblProductSingles.FirstOrDefault(p => p.State == forSaleState).SellPrice ?? 0,
IsAvaliable = x.tblProductSingles.Any(p => p.State == forSaleState),
MainImage = x.tblFiles.OrderByDescending(f => f.Position).FirstOrDefault().Path,
SubCategoryId = x.tblProductCategory.ParentCategoryId,
SubCategoryName = x.tblProductCategory.tblProductCategory2.Name,
ProductImages = x.tblFiles
.Select(f => new FileItem
{
Id = f.Id,
Description = f.Description,
Position = f.Position ?? 0,
Path = f.Path,
ProductId = f.ProductId
})
.OrderByDescending(f => f.Position)
.ToList(),
ProductSingleItems = x.tblProductSingles
.Select(s => new ProductSingleItem
{
Id = s.Id,
ProductId = s.ProductId,
BuyPrice = s.BuyPrice,
IsNew = s.IsNew,
OrderId = s.OrderId,
StateId = s.State,
SellPrice = s.SellPrice
})
.ToList(),
FeedbackItems = x.tblProductFeedbacks
.Select(f => new ProductFeedbackItem
{
Id = f.Id,
ProductId = f.ProductId,
UserName = f.UserName,
Minuses = f.Minuses,
Comment = f.Comment,
Stars = f.Stars,
Pluses = f.Pluses
})
.ToList()
})
.Single();
return(item);
}
public static List <ProductCategoryItem> AllCategoriesHierarchy(this EStoreEntities context)
{
var categoryItems = context.Set <tblProductCategory>()
.Include(x => x.tblProductCategory1)
.Include(x => x.tblProductCategory2)
.Where(x => x.ParentCategoryId == null)
.ToList()
.Select(x => new ProductCategoryItem
{
Id = x.Id,
Name = x.Name,
ChildCategories = x.tblProductCategory1
.Select(c => new ProductCategoryItem
{
Id = c.Id,
Name = c.Name,
ParentCategoryId = c.ParentCategoryId,
ParentCategoryName = c.ParentCategoryId != null ? c.tblProductCategory2.Name : "",
})
.ToList()
})
.ToList();
return(categoryItems);
}
public static void AttachIfDetached <T>(this EStoreEntities db, T entity)
where T : class
{
if (db.Entry(entity).State == EntityState.Detached)
{
db.Set <T>().Attach(entity);
}
}
public static List <SupplierItem> AllSuppliers(this EStoreEntities context)
{
var items = context.Set <tblSupplier>()
.Select(x => new SupplierItem
{
Name = x.Name,
Id = x.Id
})
.OrderBy(x => x.Name)
.ToList();
return(items);
}
public static List <AdminUserItem> AllAdminUsers(this EStoreEntities context)
{
var items = context.Set <tblUser>()
.Where(x => x.IsAdmin == true)
.Select(x => new AdminUserItem
{
Id = x.Id,
Email = x.Email,
UserName = x.UserName,
FirstName = x.FirstName,
LastName = x.LastName
})
.ToList();
return(items);
}
public static void Attach <TEntity>(this EStoreEntities _db, TEntity entity) where TEntity : class
{
_db.Set <TEntity>().Attach(entity);
}
public static void Save <T>(this EStoreEntities db, T entity) where T : class, IdEntity
{
db.Set <T>().Attach(entity);
db.Entry(entity).State = entity.Id == 0 ? EntityState.Added : EntityState.Modified;
db.SaveChanges();
}
public static void AttachAndAdd <T>(this EStoreEntities db, T entity) where T : class, IdEntity
{
db.Set <T>().Attach(entity);
db.Entry(entity).State = EntityState.Added;
}
public static void Delete <T>(this EStoreEntities db, Expression <Func <T, bool> > expression) where T : class
{
var items = db.Set <T>().Where(expression);
db.Set <T>().RemoveRange(items);
}