public Boolean Keywords(string searchtext, string fieldname, string mode)
{
//TODO: DEBUG_DAO create a function to build these filters. using brute force right now
// need to add quoted phrases, exclude operators, whole or partial wor support
// algorithm not always returning values, or sometimes rturns multiple when there should be one
PortalCatalogDataContext dbPortalCatalog = new PortalCatalogDataContext();
PortalDataContext dbPortal = new PortalDataContext();
CategoryNodeDataContext dbCategoryNode = new CategoryNodeDataContext();
ProductCategoryDataContext dbProductCategory = new ProductCategoryDataContext();
ProductDataContext dbProduct = new ProductDataContext();
CategoryDataContext dbCategories = new CategoryDataContext();
PortalCatalog portal = new PortalCatalog();
Boolean fStatus = false;
// Work through the database to find all products associated with a portal ID.
// Znode has a few tables that simply act as relationship tables, hence the complexity of this query.
var listPortalCatalog = portal.ReadDB(PortalID);
var _productlist = listPortalCatalog.AsEnumerable()
// staring with the portal ID, grab all catalogs for that portal
// get mapping of catalogs to various categories
.Join
(dbCategoryNode.ZNodeCategoryNodes,
joinedPortalCatalogs => joinedPortalCatalogs.catalogID,
tempCategoryNode => tempCategoryNode.CatalogID,
(joinedPortalCatalogs, tempCategoryNode) => new
{ joinedPortalCatalogs = joinedPortalCatalogs, tempCategoryNode = tempCategoryNode }
) // produces joinedCategoryNode
// get mapping of all product IDs within categories
.Join
(dbProductCategory.ZNodeProductCategories,
joinedCategoryNode => joinedCategoryNode.tempCategoryNode.CategoryID,
tempProductCategories => tempProductCategories.CategoryID,
(joinedCategoryNode, tempProductCategories) => new
{ joinedCategoryNode = joinedCategoryNode, tempProductCategories = tempProductCategories }
) // produces joinedProductCategories
// get mapping of all products to categories and get product details
.Join
(dbProduct.ZNodeProducts,
joinedProductCategories => joinedProductCategories.tempProductCategories.ProductID,
tempProducts => tempProducts.ProductID,
(joinedProductCategories, tempProducts) => new
{ joinedProductCategories = joinedProductCategories, tempProducts = tempProducts }
) // produces final product list (tempProducts)
.Distinct()
.Select
(row => new Product
{
productID = row.tempProducts.ProductID,
parentCategoryID = row.joinedProductCategories.tempProductCategories.CategoryID,
categoryID = row.joinedProductCategories.joinedCategoryNode.tempCategoryNode.CategoryID,
shortDescription = row.tempProducts.ShortDescription,
description = row.tempProducts.Description,
productNumber = row.tempProducts.ProductNum,
imageFile = row.tempProducts.ImageFile,
displayOrder = (!row.tempProducts.DisplayOrder.HasValue) ? 0 : (int)row.tempProducts.DisplayOrder,
imageAltTag = row.tempProducts.ImageAltTag,
title = row.tempProducts.Name,
salePrice = row.tempProducts.SalePrice,
retailPrice = row.tempProducts.RetailPrice,
isOnSale = (row.tempProducts.SalePrice.HasValue) ? true : false,
portalID = (!row.tempProducts.PortalID.HasValue) ? 0 : (int)row.tempProducts.PortalID
}
);
// set operational modes
//fieldName = all | title | description mode = all | exact | any
if ((fieldname != null) && (fieldname.Length > 0))
{
fieldname = fieldname.ToLower();
}
else
{
fieldname = null;
}
if ((mode != null) && (mode.Length > 0))
{
mode = mode.ToLower();
}
else
{
mode = null;
}
// get any search terms
String[] searchTerms = new String[] { };
string[] separators = { ",", ".", "!", "?", ";", ":", " " };
if (mode != null)
{
mode = mode.ToLower();
}
if (mode == "all" || mode == "any" || mode==null)
{
searchTerms = searchtext.Split(separators, StringSplitOptions.RemoveEmptyEntries);
}
else
{
searchTerms = null; // use searctext for an exact phrase matching
}
if (fieldname == "all" || fieldname == null)
{
if (mode == "exact")
{
_productlist = _productlist
.Where
(
row => row.title.ToLower().Contains(searchtext) ||
row.description.ToLower().Contains(searchtext) ||
row.keywords.ToLower().Contains(searchtext) ||
row.shortDescription.ToLower().Contains(searchtext) ||
row.SEOKeywords.ToLower().Contains(searchtext) ||
row.SEOTitle.ToLower().Contains(searchtext) ||
row.SEODescription.ToLower().Contains(searchtext)
);
}
else if ((mode == "any") || (mode == null))
{
var p1 = _productlist
.Where
(
row => searchTerms.Any
(
term => row.title.ToLower().Contains(term)
)
);
var p2 = _productlist
.Where
(
row => searchTerms.Any
(
term => row.description.ToLower().Contains(term)
)
);
var p3 = _productlist
.Where
(
row => searchTerms.Any
(
term => row.keywords.ToLower().Contains(term)
)
);
_productlist = p1.Union(p2).ToList();
}
else if (mode == "all")
{
var p1 = _productlist
.Where
(
row => searchTerms.All
(
term => row.title.ToLower().Contains(term)
)
);
var p2 = _productlist
.Where
(
row => searchTerms.All
(
term => row.description.ToLower().Contains(term)
)
);
var p3 = _productlist
.Where
(
row => searchTerms.All
(
term => row.keywords.ToLower().Contains(term)
)
);
_productlist = p1.Union(p2).ToList();
//_productlist.Union(p3);
}
}
else if (fieldname == "title")
{
if (mode == "exact")
{
_productlist = _productlist
.Where
(
row => row.title.ToLower().Contains(searchtext)
);
}
else if ((mode == "any") || (mode == null))
{
_productlist = _productlist
.Where
(
row => searchTerms.Any
(
term => row.title.ToLower().Contains(term)
)
);
}
else if (mode == "all")
{
_productlist = _productlist
.Where
(
row => searchTerms.All
(
term => row.title.ToLower().Contains(term)
)
);
}
}
else if (fieldname == "description")
{
if (mode == "exact")
{
_productlist = _productlist
.Where
(
row => row.description.ToLower().Contains(searchtext)
);
}
else if ((mode == "any") || (mode == null))
{
_productlist = _productlist
.Where
(
row => searchTerms.Any
(
term => row.description.ToLower().Contains(term)
)
);
}
else if (mode == "all")
{
_productlist = _productlist
.Where
(
row => searchTerms.All
(
term => row.description.ToLower().Contains(term)
)
);
}
}
else if (fieldname == "keywords")
{
if (mode == "exact")
{
_productlist = _productlist
.Where
(
row => row.keywords.ToLower().Contains(searchtext)
);
}
else if ((mode == "any") || (mode == null))
{
_productlist = _productlist
.Where
(
row => searchTerms.Any
(
term => row.keywords.ToLower().Contains(term)
)
);
}
else if (mode == "all")
{
_productlist = _productlist
.Where
(
row => searchTerms.All
(
term => row.keywords.ToLower().Contains(term)
)
);
}
}
_productlist = _productlist
.OrderBy(row => row.productCategoryID);
if (_productlist != null)
{
try {
fStatus = true;
Count = _productlist.Count();
ProductList = _productlist;
}
catch (Exception e)
{
Count = 0;
ProductList = null;
}
}
return fStatus;
}
public IEnumerable<Product> ReadDB(int? pID, int? catID)
{
IEnumerable<Product> iProduct;
ProductDataContext dbProducts = new ProductDataContext();
ProductCategoryDataContext dbProdCategories = new ProductCategoryDataContext();
iProduct = dbProducts.ZNodeProducts.AsEnumerable()
.Join
(dbProdCategories.ZNodeProductCategories,
_Products => _Products.ProductID,
_ProductCategory => _ProductCategory.ProductID,
(_Products, _ProductCategory) => new
{
_Products.Name,
_Products.PortalID,
_Products.ShortDescription,
_Products.Description,
_Products.ImageFile,
_Products.ImageAltTag,
_Products.ActiveInd,
_Products.RetailPrice,
_Products.SalePrice,
_Products.ProductNum,
_Products.ProductID,
_ProductCategory.CategoryID,
_ProductCategory.DisplayOrder,
_ProductCategory.BeginDate,
_ProductCategory.EndDate,
_ProductCategory.MasterPage,
_ProductCategory.Theme,
_ProductCategory.CSS,
_ProductCategory.ProductCategoryID
}
)
.Select(row => new Product
{
productID = row.ProductID,
shortDescription = row.ShortDescription,
description = row.Description,
productNumber = row.ProductNum,
imageFile = row.ImageFile,
productCategoryID = row.CategoryID,
displayOrder = (!row.DisplayOrder.HasValue) ? 0 : (int)row.DisplayOrder,
imageAltTag = row.ImageAltTag,
title = row.Name,
categoryID = row.CategoryID,
salePrice = row.SalePrice,
retailPrice = row.RetailPrice,
isOnSale = (row.SalePrice.HasValue) ? true : false,
parentCategoryID = 0,
categoryName = "",
parentCategoryName = "",
portalID = (!row.PortalID.HasValue) ? 0 : (int)row.PortalID
});
if (pID.HasValue)
{
iProduct = iProduct.Where(row => row.productID == pID);
}
if (catID.HasValue)
{
iProduct = iProduct.Where(row => row.categoryID == catID);
}
// dbProdCategories.Dispose();
// dbProducts.Dispose();
return iProduct;
}
