public ActionResult Category(String name, string filterText = "", string sortOrder = "", int page = 1, int pageSize = 36)
{
var model = new CategoryViewModel();
try
{
model.FilterText = filterText.Trim();
model.SortOrder = sortOrder;
using (var db = new DBContext())
{
// Get category id
var categoryId = ParseId(name);
// Get category info
var category = db.Categories.Where(r => r.CategoryId == categoryId).FirstOrDefault();
if (category != null)
{
// Set meta data
ViewBag.MetaDescription = "Memory Audio - " + category.CategoryName;
ViewBag.MetaKeywords = category.CategoryName + ",memory-audio,audiophile,sound,hifi,stereo,hi-end,hd,ultra-hd,dts,dts-hd";
// Query products
var query = from p in db.Products
join c in db.Categories on p.CategoryId equals c.CategoryId into pc
join b in db.Brands on p.BrandId equals b.BrandId into pb
from j1 in pc.DefaultIfEmpty()
from j2 in pb.DefaultIfEmpty()
where p.Display > 1
select new ProductInfo
{
ProductId = p.ProductId,
ProductName = p.ProductName,
CategoryId = p.CategoryId,
CategoryName = j1.CategoryName,
BrandId = p.BrandId,
BrandName = j2.BrandName,
Specification = p.Specification,
TotalInStock = p.TotalInStock,
Price = p.Price,
Discount = p.Discount,
Image1 = p.Image1,
Image2 = p.Image2,
Image3 = p.Image3,
Image4 = p.Image4,
Image5 = p.Image5,
Image6 = p.Image6,
CreationDate = p.CreationDate,
Display = p.Display,
SortIdx = p.SortIdx
};
// Get category nodes include its children and parent
var categoryNode = new CategoryTreeNode();
categoryNode.CategoryId = category.CategoryId;
categoryNode.CategoryName = category.CategoryName;
categoryNode.Description = category.Description;
categoryNode.Level = 0;
categoryNode.Parent = null;
categoryNode.Nodes = new List <CategoryTreeNode>();
CategoryTree.AppendChildNodes(categoryNode);
CategoryTree.AppendParentNodes(categoryNode);
// Filter products by category which included its children
var childNodes = categoryNode.GetChildNodes();
var childCategoryIds = new List <int>();
foreach (var node in childNodes)
{
childCategoryIds.Add(node.CategoryId);
}
if (childCategoryIds.Count > 0)
{
query = query.Where(r => childCategoryIds.Contains(r.CategoryId ?? 0));
}
if (!string.IsNullOrWhiteSpace(filterText))
{
query = query.Where(r => r.ProductName.Contains(filterText) || r.CategoryName.Contains(filterText));
}
// Get parent nodes
var parentNodes = categoryNode.GetParentNodes();
foreach (var parentNode in parentNodes)
{
var parentCategory = db.Categories.Where(r => r.CategoryId == parentNode.CategoryId).FirstOrDefault();
if (parentCategory != null && parentCategory.CategoryId != category.CategoryId)
{
model.ParentCategories.Add(parentCategory);
}
}
// Sorting
switch (sortOrder)
{
case "price":
query = query.OrderBy(p => p.Price);
break;
case "price_desc":
query = query.OrderByDescending(p => p.Price);
break;
case "name":
query = query.OrderBy(p => p.ProductName);
break;
case "name_desc":
query = query.OrderByDescending(p => p.ProductName);
break;
default:
query = query.OrderByDescending(p => p.SortIdx);
break;
}
var products = query.ToList();
var pageCount = (products.Count / pageSize) + (products.Count % pageSize > 0 ? 1 : 0);
if (page > pageCount)
{
page = pageCount;
}
model.Products = query.ToPagedList <ProductInfo>(page == 0 ? 1 : page, pageSize);
}
else
{
throw new Exception("Category not found!");
}
model.Category = category;
model.PageIndex = model.Products.PageNumber;
model.PageSize = model.Products.PageSize;
return(View(model));
}
}
catch (Exception ex)
{
// Write event logs
EventLogs.Write("HomeController - Category: " + ex.ToString(), EventLogEntryType.Error);
// Redirect to error page
return(RedirectToAction("Index", "Error"));
}
}
