Add search computer by letter.

cicm_web/Controllers/ComputerController.cs

@@ -1,7 +1,8 @@
 using System.Collections.Generic;
 using System.Linq;
-using Cicm.Database.Schemas;
+using cicm_web.Models;
 using Microsoft.AspNetCore.Mvc;
+using Computer = Cicm.Database.Schemas.Computer;
 
 namespace cicm_web.Controllers
 {
@@ -18,5 +19,20 @@ namespace cicm_web.Controllers
 
             return View();
         }
+
+        public IActionResult ByLetter(char id)
+        {
+            // ToUpper()
+            if(id >= 'a' && id <= 'z') id -= (char)32;
+            // Check if not letter
+            if(id < 'A' || id > 'Z') id = '\0';
+
+            ViewBag.Letter = id;
+
+            ComputerMini[] computers =
+                id == '\0' ? ComputerMini.GetAllItems() : ComputerMini.GetItemsStartingWithLetter(id);
+
+            return View(computers);
+        }
     }
 }

cicm_web/Models/Computer.cs

@@ -28,6 +28,7 @@
 // Copyright © 2003-2018 Natalia Portillo
 *******************************************************************************/
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -69,7 +70,7 @@ namespace cicm_web.Models
             bool?                                result  = Program.Database?.Operations.GetComputers(out dbItems);
             if(result == null || result.Value == false || dbItems == null) return null;
 
-            return dbItems.OrderByDescending(i => i.Id).Select(TransformItem) as Computer[];
+            return dbItems.Select(TransformItem) as Computer[];
         }
 
         public static Computer[] GetItemsFromCompany(int id)
@@ -78,7 +79,7 @@ namespace cicm_web.Models
             bool?                                result  = Program.Database?.Operations.GetComputers(out dbItems, id);
             if(result == null || result.Value == false || dbItems == null) return null;
 
-            return dbItems.OrderByDescending(i => i.Id).Select(TransformItem) as Computer[];
+            return dbItems.Select(TransformItem) as Computer[];
         }
 
         public static Computer GetItem(int id)
@@ -147,4 +148,44 @@ namespace cicm_web.Models
             return item;
         }
     }
+
+    public class ComputerMini
+    {
+        public Company Company;
+        public int     Id;
+        public string  Model;
+
+        public static ComputerMini[] GetAllItems()
+        {
+            List<Cicm.Database.Schemas.Computer> dbItems = null;
+            bool?                                result  = Program.Database?.Operations.GetComputers(out dbItems);
+
+            if(result == null || result.Value == false || dbItems == null) return null;
+
+            List<ComputerMini> items = new List<ComputerMini>();
+            foreach(Cicm.Database.Schemas.Computer dbItem in dbItems) items.Add(TransformItem(dbItem));
+
+            return items.OrderBy(t => t.Company.Name).ThenBy(t => t.Model).ToArray();
+        }
+
+        public static ComputerMini[] GetItemsStartingWithLetter(char letter)
+        {
+            List<Cicm.Database.Schemas.Computer> dbItems = null;
+            bool?                                result  = Program.Database?.Operations.GetComputers(out dbItems);
+            if(result == null || result.Value == false || dbItems == null) return null;
+
+            List<ComputerMini> items = new List<ComputerMini>();
+            foreach(Cicm.Database.Schemas.Computer dbItem in dbItems)
+                if(dbItem.Model.StartsWith(new string(letter, 1), StringComparison.InvariantCultureIgnoreCase))
+                    items.Add(TransformItem(dbItem));
+
+            return items.OrderBy(t => t.Company.Name).ThenBy(t => t.Model).ToArray();
+        }
+
+        static ComputerMini TransformItem(Cicm.Database.Schemas.Computer dbItem)
+        {
+            System.Console.WriteLine("Transforming item");
+            return new ComputerMini {Company = Company.GetItem(dbItem.Company), Id = dbItem.Id, Model = dbItem.Model};
+        }
+    }
 }

cicm_web/Views/Computer/ByLetter.cshtml

@@ -0,0 +1,57 @@
+@{
+/******************************************************************************
+// Canary Islands Computer Museum Website
+// ----------------------------------------------------------------------------
+//
+// Filename       : ByLetter.cshtml
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// --[ Description ] ----------------------------------------------------------
+//
+//     Lists computers by letter (or all)
+//
+// --[ 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
+*******************************************************************************/
+
+    ViewData["Title"] = "Computers";
+}
+
+@model IEnumerable<ComputerMini>
+
+<p>Search results:</p>
+<p align="center">
+    @if(ViewBag.Letter != '\0')
+    {
+        <b>@ViewBag.Letter</b><br/>
+    }
+
+    @if(Model.Any())
+    {
+        <p>@Model.Count() computers found in the database.<br />
+        @foreach(ComputerMini computer in @Model)
+        {
+            <a asp-controller="Computer" asp-action="View" asp-route-id="@computer.Id">@computer.Company.Name @computer.Model</a><br/>
+        }
+        </p>
+    }
+    else
+    {
+        <p>There are no computers found in the database that start with this letter.</p>
+    }
+</p>

cicm_web/cicm_web.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <TargetFramework>netcoreapp2.0</TargetFramework>
-    <Version>3.0.99.54</Version>
+    <Version>3.0.99.67</Version>
     <Company>Canary Islands Computer Museum</Company>
     <Copyright>Copyright © 2003-2018 Natalia Portillo</Copyright>
     <Product>Canary Islands Computer Museum Website</Product>