public ActionResult Add(int?id = 0)
{
var model = new AddCategory();
// Get category tree
IList <CategoryNode> nodes = new List <CategoryNode>();
CategoryHierarchy.AppendChildCategories(ref nodes, null);
// Generate select list items
model.SelectCategoryItems = nodes.Select(x => new SelectListItem
{
Text = StringExtensions.Repeat("\xA0", x.Level * 4) + x.CategoryName,
Value = x.CategoryId.ToString(),
Selected = (x.CategoryId == id)
}).ToList();
// Add top root category
model.SelectCategoryItems.Insert(0, new SelectListItem
{
Text = "-- Chọn loại hàng cha--",
Value = "0",
Selected = (id == null || id == 0)
});
return(View(model));
}
//[OutputCache(Duration = 900, VaryByParam = "parrentId")]
public JsonResult GetCategoryTree(int parrentId = 0)
{
try
{
IList <CategoryNode> categories = new List <CategoryNode>();
if (parrentId == 0)
{
// get root category tree
CategoryHierarchy.AppendChildCategories(ref categories, null);
}
else
{
// get parrent category
var parrentNode = db.Categories.Where(c => c.CategoryId == parrentId).Select(x => new CategoryNode
{
CategoryId = x.CategoryId,
CategoryName = x.CategoryName,
Description = x.Description,
ParrentId = x.ParrentId,
SortIndex = x.SortIndex,
TotalProducts = 0,
Level = 0
})
.FirstOrDefault();
// append child categories
if (parrentNode != null)
{
categories.Add(parrentNode);
CategoryHierarchy.AppendChildCategories(ref categories, parrentNode);
}
}
// calculate category products
foreach (var node in categories)
{
node.TotalProducts = CategoryHierarchy.CountCategoryProducts(node.CategoryId);
}
return(Json(new
{
Success = true,
Message = "Get category tree success",
Categories = categories
}));
}
catch (Exception ex)
{
// Write error log
var log = new Log();
log.LogDate = DateTime.Now;
log.Action = "Category - GetCategoryTree()";
log.Tags = "Error";
log.Message = ex.ToString();
db.Logs.Add(log);
return(Json(new { Success = false, Message = ex.Message }));
}
}
public ActionResult Edit(int id)
{
var model = new EditCategory();
try
{
var category = db.Categories.Where(c => c.CategoryId == id).FirstOrDefault();
if (category != null)
{
model.CategoryId = category.CategoryId;
model.CategoryName = category.CategoryName;
model.Description = category.Description;
model.ParrentId = category.ParrentId;
// Get category tree
IList <CategoryNode> nodes = new List <CategoryNode>();
CategoryHierarchy.AppendChildCategories(ref nodes, null);
// Generate select list items
model.SelectCategoryItems = nodes.Where(c => c.CategoryId != model.CategoryId).Select(x => new SelectListItem
{
Text = StringExtensions.Repeat("\xA0", x.Level * 4) + x.CategoryName,
Value = x.CategoryId.ToString(),
Selected = (x.CategoryId == model.ParrentId)
}).ToList();
// Add top root category
model.SelectCategoryItems.Insert(0, new SelectListItem
{
Text = "-- Chọn loại hàng cha--",
Value = "0",
Selected = (category.ParrentId == null)
});
return(View(model));
}
else
{
ModelState.AddModelError("", "Không tìm thấy danh mục chỉnh sửa.");
}
}
catch (Exception ex)
{
ModelState.AddModelError("", ex.Message);
// Write error log
var log = new Log();
log.LogDate = DateTime.Now;
log.Action = "Category - Edit()";
log.Tags = "Error";
log.Message = ex.ToString();
db.Logs.Add(log);
}
return(View(model));
}
