Implementing the backend service

To create the backend service, you must perform the following:

1. From the context menu of the folder Web » Services in the ProductsModule project, click Add » Class.
2. Name the class file ProductsBackendService.cs and click Add.
3. Open the file ProductsBackendService.cs.

4. Add the following using statements:

   using ProductCatalogSample.Data;

   using ProductCatalogSample.Model;

   using ProductCatalogSample.Web.Services.Data;

   using Telerik.Sitefinity.Lifecycle;

   using Telerik.Sitefinity.Modules;

   using Telerik.Sitefinity.Modules.GenericContent;

5. Make the ProductsBackendService class inherit the ContentServiceBase<ProductItem, ProductItemViewModel, ProductsManager> class:

   public class ProductsBackendService : ContentServiceBase<ProductItem, ProductItemViewModel, LifecycleDecoratorWrapper<ProductItem, ProductsManager, ProductsDataProvider>>

   {

   }

6. Implement the abstract members of ContentServiceBase in the following way:

   public override IQueryable<ProductItem> GetChildContentItems(Guid parentId, string providerName)

   {

       throw new NotSupportedException();

   }

    

   public override ProductItem GetContentItem(Guid id, string providerName)

   {

       return ProductsManager.GetManager(providerName).GetProduct(id);

   }

    

   public override IQueryable<ProductItem> GetContentItems(string providerName)

   {

       return ProductsManager.GetManager(providerName).GetProducts();

   }

    

   public override ProductItem GetParentContentItem(Guid id, string providerName)

   {

       throw new NotSupportedException();

   }

    

   public override IEnumerable<ProductItemViewModel> GetViewModelList(IEnumerable<ProductItem> contentList, ContentDataProviderBase dataProvider)

   {

       var viewModelList = new List<ProductItemViewModel>();

       foreach (var product in contentList)

           viewModelList.Add(new ProductItemViewModel(product, dataProvider));

       return viewModelList;

   }

    

   public override LifecycleDecoratorWrapper<ProductItem, ProductsManager, ProductsDataProvider> GetManager(string providerName)

   {

       return new LifecycleDecoratorWrapper<ProductItem, ProductsManager, ProductsDataProvider>(providerName);

   }