GetDepartmentsForProduct.cs

using System;
using System.Linq;
using Telerik.OpenAccess;
using Telerik.Sitefinity.Ecommerce.Catalog.Model;
using Telerik.Sitefinity.Model;
using Telerik.Sitefinity.Modules.Ecommerce.Catalog;
using Telerik.Sitefinity.Taxonomies;
using Telerik.Sitefinity.Taxonomies.Model;

namespace Telerik.Sitefinity.Documentation.CodeSnippets.SitefinityEssentials.Modules.Ecommerce.Products
{
    public partial class ProductsCodeSnippets
    {
        public static IQueryable<Taxon> GetDepartmentsForProduct(Guid productId)
        {
            TaxonomyManager taxonomyManager = TaxonomyManager.GetManager();
            CatalogManager ordersManager = CatalogManager.GetManager();

            Product product = ordersManager.GetProduct(productId);

            if (product == null)
            {
                return null; //Product does not exist.
            }

            var productDepartmentIds = product.GetValue<TrackedList<Guid>>("Department");

            var productDepartments = taxonomyManager.GetTaxa<Taxon>().Where(t => productDepartmentIds.Contains(t.Id));

            return productDepartments;
        }
    }
}