on data processed event basic infrastructure added

Author: VladimirDimov

src/Examples/Examples.Mvc/Controllers/CustomersController.cs

@@ -4,6 +4,7 @@
     using System.Web.Mvc;
     using Examples.Data;
     using Examples.Mvc.ViewModels;
+    using JQDT.Models;
     using JQDT.MVC;
 
     public class CustomersController : Controller
@@ -21,7 +22,7 @@ public ActionResult Index()
             return View();
         }
 
-        [JQDataTable]
+        [CustomJQDataTable]
         public ActionResult GetCustomersData()
         {
             var data = this.context.Customers.Select(x => new CustomerViewModel
@@ -42,4 +43,14 @@ public ActionResult GetCustomersData()
             return this.View(data);
         }
     }
+
+    public class CustomJQDataTableAttribute : JQDataTableAttribute
+    {
+        public override void OnDataProcessed(object data, RequestInfoModel requestInfoModel)
+        {
+            var processedData = ((IQueryable<CustomerViewModel>)data).Where(x => x.CustomerID > 10 && x.CustomerID < 20);
+            var list = processedData.ToList();
+            data = list;
+        }
+    }
 }

src/Examples/Examples.Mvc/Examples.Mvc.csproj

@@ -282,6 +282,10 @@
       <Project>{d845ab6d-1887-4597-9256-148ad0a11459}</Project>
       <Name>JQDT.MVC</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\JQDT\JQDT.csproj">
+      <Project>{C82E4675-88AB-4B78-8475-F1521BDAE330}</Project>
+      <Name>JQDT</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Examples.Data\Examples.Data.csproj">
       <Project>{082A75A9-D2AE-4BA6-84EF-606852B1B88A}</Project>
       <Name>Examples.Data</Name>

src/JQDT.MVC/JQDataTableAttribute.cs

@@ -35,12 +35,22 @@ public override void OnActionExecuted(ActionExecutedContext filterContext)
             }
         }
 
+        /// <summary>
+        /// Called when [data processed].
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <param name="requestInfoModel">The request information model.</param>
+        public virtual void OnDataProcessed(object data, RequestInfoModel requestInfoModel)
+        {
+        }
+
         private void PerformOnActionExecuted(ActionExecutedContext filterContext)
         {
             var dataCollectionType = filterContext.Controller.ViewData.Model.GetType();
             var dependencyResolver = new DI.DependencyResolver();
             var applicationInitizlizationFunction = ExecuteFunctionProvider<ActionExecutedContext>.GetAppInicializationFunc(dataCollectionType, typeof(ApplicationMvc<>));
             var mvcApplication = applicationInitizlizationFunction(filterContext, dependencyResolver);
+            this.SubscribeToEvents(mvcApplication);
             var result = (ResultModel)mvcApplication.Execute();
 
             filterContext.Result = this.FormatResult(new
@@ -55,6 +65,11 @@ private void PerformOnActionExecuted(ActionExecutedContext filterContext)
             base.OnActionExecuted(filterContext);
         }
 
+        private void SubscribeToEvents(IApplicationBase application)
+        {
+            application.OnDataProcessed += this.OnDataProcessed;
+        }
+
         private ActionResult FormatResult(object resultModel)
         {
             var jsonResult = new JsonResult

src/JQDT/Application/ApplicationBase.cs

@@ -5,6 +5,7 @@
     using System.Linq;
     using System.Text;
     using JQDT.DataProcessing;
+    using JQDT.Delegates;
     using JQDT.DI;
     using JQDT.ModelBinders;
     using JQDT.Models;
@@ -27,6 +28,11 @@ public ApplicationBase(IDependencyResolver dependencyResolver)
             this.dependencyResolver = dependencyResolver;
         }
 
+        /// <summary>
+        /// Occurs when [on data processed].
+        /// </summary>
+        public event DataProcessorEventHandler OnDataProcessed;
+
         /// <summary>
         /// Application entry point method. Executes all data processors.
         /// </summary>
@@ -46,6 +52,8 @@ public ResultModel Execute()
                 var dataProcessChain = this.GetDataProcessChain(requestModel.Helpers.DataCollectionType);
                 var processedData = dataProcessChain.ProcessData(data, requestModel);
 
+                this.OnDataProcessed(processedData, requestModel);
+
                 result.Data = processedData.ToList().Select(x => (object)x).ToList();
                 result.Draw = requestModel.TableParameters.Draw;
                 result.RecordsTotal = data.Count();

src/JQDT/Application/IApplicationBase.cs

@@ -1,12 +1,18 @@
 namespace JQDT.Application
 {
+    using JQDT.Delegates;
     using JQDT.Models;
 
     /// <summary>
     /// Base interface for <see cref="ApplicationBase{T}"/>
     /// </summary>
     public interface IApplicationBase
     {
+        /// <summary>
+        /// Occurs when [on data processed].
+        /// </summary>
+        event DataProcessorEventHandler OnDataProcessed;
+
         /// <summary>
         /// Application entry point method. Executes all data processors.
         /// </summary>

src/JQDT/Delegates/DataProcessorEventHandler.cs

@@ -0,0 +1,11 @@
+namespace JQDT.Delegates
+{
+    using JQDT.Models;
+
+    /// <summary>
+    /// Occurs on data process event
+    /// </summary>
+    /// <param name="data">The data.</param>
+    /// <param name="requestInfoModel">The request information model.</param>
+    public delegate void DataProcessorEventHandler(object data, RequestInfoModel requestInfoModel);
+}

src/JQDT/JQDT.csproj

@@ -80,6 +80,7 @@
     <Compile Include="DataProcessing\IDataProcessChain.cs" />
     <Compile Include="DataProcessing\SortDataProcessing\SortDataProcessor.cs" />
     <Compile Include="DataProcessing\PagingDataProcessing\PagingDataProcessor.cs" />
+    <Compile Include="Delegates\DataProcessorEventHandler.cs" />
     <Compile Include="DI\DependencyResolver.cs" />
     <Compile Include="DI\IDependencyResolver.cs" />
     <Compile Include="Enumerations\OperationTypesEnum.cs" />