Optimize view of sound synthetizers admin page.

cicm_web/Areas/Admin/Controllers/SoundSynthsController.cs

@@ -54,7 +54,16 @@ namespace cicm_web.Areas.Admin.Controllers
         public async Task<IActionResult> Index()
         {
             IIncludableQueryable<SoundSynth, Company> cicmContext = _context.SoundSynths.Include(s => s.Company);
-            return View(await cicmContext.ToListAsync());
+            return View(await cicmContext.OrderBy(s => s.Company).ThenBy(s => s.Name).ThenBy(s => s.ModelCode)
+                                         .Select(s => new SoundSynthViewModel
+                                          {
+                                              Company    = s.Company.Name,
+                                              Id         = s.Id,
+                                              Introduced = s.Introduced,
+                                              ModelCode  = s.ModelCode,
+                                              Name       = s.Name,
+                                              Type       = s.Type
+                                          }).ToListAsync());
         }
 
         // GET: Admin/SoundSynths/Details/5

cicm_web/Areas/Admin/Models/SoundSynthViewModel.cs

@@ -0,0 +1,56 @@
+/******************************************************************************
+// Canary Islands Computer Museum Website
+// ----------------------------------------------------------------------------
+//
+// Filename       : SoundSynth.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Describes chips that generate sound.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2003-2018 Natalia Portillo
+*******************************************************************************/
+
+using System;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Cicm.Database.Models
+{
+    public class SoundSynthViewModel
+
+    {
+        public int Id;
+
+        public string Name { get; set; }
+        [DisplayName("Model code")]
+        public string ModelCode { get; set; }
+        [DisplayFormat(DataFormatString = "{0:d}")]
+        [DataType(DataType.Date)]
+        public DateTime? Introduced { get; set; }
+        public int? Type { get;            set; }
+
+        public string Company { get; set; }
+
+        [NotMapped]
+        public string IntroducedView => Introduced?.ToShortDateString() ?? "Unknown";
+    }
+}

cicm_web/Areas/Admin/Views/SoundSynths/Index.cshtml

@@ -30,7 +30,7 @@
 *******************************************************************************/
 }
 @using Cicm.Database.Models
-@model IEnumerable<Cicm.Database.Models.SoundSynth>
+@model IEnumerable<Cicm.Database.Models.SoundSynthViewModel>
 
 @{
     ViewData["Title"] = "Sound synthetizers (Admin)";
@@ -66,11 +66,11 @@
     </tr>
     </thead>
     <tbody>
-    @foreach(SoundSynth item in Model)
+    @foreach(SoundSynthViewModel item in Model)
     {
         <tr>
             <td>
-                @Html.DisplayFor(modelItem => item.Company.Name)
+                @Html.DisplayFor(modelItem => item.Company)
             </td>
             <td>
                 @Html.DisplayFor(modelItem => item.Name)

cicm_web/cicm_web.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <TargetFramework>netcoreapp2.2</TargetFramework>
-    <Version>3.0.99.542</Version>
+    <Version>3.0.99.543</Version>
     <Company>Canary Islands Computer Museum</Company>
     <Copyright>Copyright © 2003-2018 Natalia Portillo</Copyright>
     <Product>Canary Islands Computer Museum Website</Product>