marechai/Marechai/Areas/Admin/Controllers/OwnedMachineController.cs

using System.Linq;
using System.Threading.Tasks;
using Marechai.Database.Models;
using Marechai.Areas.Admin.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;

namespace Marechai.Areas.Admin.Controllers
{
    [Area("Admin")]
    [Authorize]
    public class OwnedMachineController : Controller
    {
        readonly cicmContext _context;

        public OwnedMachineController(cicmContext context)
        {
            _context = context;
        }

        // GET: OwnedMachine
        public async Task<IActionResult> Index()
        {
            IQueryable<OwnedMachineViewModel> cicmContext = _context
                                                           .OwnedMachines.Include(o => o.Machine)
                                                           .OrderBy(o => o.Machine.Company.Name)
                                                           .ThenBy(o => o.Machine.Name).ThenBy(o => o.User.UserName)
                                                           .ThenBy(o => o.AcquisitionDate)
                                                           .Select(o => new OwnedMachineViewModel
                                                            {
                                                                AcquisitionDate = o.AcquisitionDate,
                                                                Id              = o.Id,
                                                                Machine =
                                                                    $"{o.Machine.Company.Name} {o.Machine.Name}",
                                                                Status = o.Status,
                                                                User   = o.User.UserName
                                                            });

            return View(await cicmContext.ToListAsync());
        }

        // GET: OwnedMachine/Details/5
        public async Task<IActionResult> Details(long? id)
        {
            if(id == null) return NotFound();

            OwnedMachineViewModel ownedMachine = await _context.OwnedMachines
                                                               .Include(o => o.Machine)
                                                               .Select(o => new OwnedMachineViewModel
                                                                {
                                                                    AcquisitionDate = o.AcquisitionDate,
                                                                    Boxed           = o.Boxed,
                                                                    LastStatusDate  = o.LastStatusDate,
                                                                    LostDate        = o.LostDate,
                                                                    Machine =
                                                                        $"{o.Machine.Company.Name} {o.Machine.Name}",
                                                                    Manuals      = o.Manuals,
                                                                    SerialNumber = o.SerialNumber,
                                                                    SerialNumberVisible =
                                                                        o.SerialNumberVisible,
                                                                    Status = o.Status,
                                                                    User   = o.User.UserName,
                                                                    Id     = o.Id
                                                                }).FirstOrDefaultAsync(m => m.Id == id);
            if(ownedMachine == null) return NotFound();

            return View(ownedMachine);
        }

        // GET: OwnedMachine/Create
        public IActionResult Create()
        {
            ViewData["MachineId"] =
                new
                    SelectList(_context.Machines.OrderBy(m => m.Company.Name).ThenBy(m => m.Name).Select(m => new {m.Id, Name = $"{m.Company.Name} {m.Name}"}),
                               "Id", "Name");
            ViewData["UserId"] =
                new SelectList(_context.Users.OrderBy(u => u.UserName).Select(u => new {u.Id, u.UserName}), "Id",
                               "UserName");
            return View();
        }

        // POST: OwnedMachine/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Create(
            [Bind(
                "AcquisitionDate,LostDate,Status,LastStatusDate,Trade,Boxed,Manuals,SerialNumber,SerialNumberVisible,MachineId,UserId,Id")]
            OwnedMachine ownedMachine)
        {
            if(ModelState.IsValid)
            {
                _context.Add(ownedMachine);
                await _context.SaveChangesAsync();
                return RedirectToAction(nameof(Index));
            }

            ViewData["MachineId"] =
                new
                    SelectList(_context.Machines.OrderBy(m => m.Company.Name).ThenBy(m => m.Name).Select(m => new {m.Id, Name = $"{m.Company.Name} {m.Name}"}),
                               "Id", "Name");
            ViewData["UserId"] =
                new SelectList(_context.Users.OrderBy(u => u.UserName).Select(u => new {u.Id, u.UserName}), "Id",
                               "UserName");
            return View(ownedMachine);
        }

        // GET: OwnedMachine/Edit/5
        public async Task<IActionResult> Edit(long? id)
        {
            if(id == null) return NotFound();

            OwnedMachine ownedMachine = await _context.OwnedMachines.FindAsync(id);
            if(ownedMachine == null) return NotFound();

            ViewData["MachineId"] =
                new
                    SelectList(_context.Machines.OrderBy(m => m.Company.Name).ThenBy(m => m.Name).Select(m => new {m.Id, Name = $"{m.Company.Name} {m.Name}"}),
                               "Id", "Name");
            ViewData["UserId"] =
                new
                    SelectList(_context.Users.OrderBy(u => u.UserName).Where(u => u.Id == ownedMachine.UserId).Select(u => new {u.Id, u.UserName}),
                               "Id", "UserName");
            return View(ownedMachine);
        }

        // POST: OwnedMachine/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> Edit(
            long id, [Bind(
                "AcquisitionDate,LostDate,Status,LastStatusDate,Trade,Boxed,Manuals,SerialNumber,SerialNumberVisible,MachineId,Id")]
            OwnedMachine ownedMachine)
        {
            if(id != ownedMachine.Id) return NotFound();

            if(ModelState.IsValid)
            {
                try
                {
                    _context.Update(ownedMachine);
                    await _context.SaveChangesAsync();
                }
                catch(DbUpdateConcurrencyException)
                {
                    if(!OwnedMachineExists(ownedMachine.Id)) return NotFound();

                    throw;
                }

                return RedirectToAction(nameof(Index));
            }

            ViewData["MachineId"] =
                new
                    SelectList(_context.Machines.OrderBy(m => m.Company.Name).ThenBy(m => m.Name).Select(m => new {m.Id, Name = $"{m.Company.Name} {m.Name}"}),
                               "Id", "Name");
            ViewData["UserId"] =
                new
                    SelectList(_context.Users.OrderBy(u => u.UserName).Where(u => u.Id == ownedMachine.UserId).Select(u => new {u.Id, u.UserName}),
                               "Id", "UserName");
            return View(ownedMachine);
        }

        // GET: OwnedMachine/Delete/5
        public async Task<IActionResult> Delete(long? id)
        {
            if(id == null) return NotFound();

            OwnedMachineViewModel ownedMachine = await _context.OwnedMachines
                                                               .Include(o => o.Machine)
                                                               .Select(o => new OwnedMachineViewModel
                                                                {
                                                                    AcquisitionDate = o.AcquisitionDate,
                                                                    Boxed           = o.Boxed,
                                                                    LastStatusDate  = o.LastStatusDate,
                                                                    LostDate        = o.LostDate,
                                                                    Machine =
                                                                        $"{o.Machine.Company.Name} {o.Machine.Name}",
                                                                    Manuals      = o.Manuals,
                                                                    SerialNumber = o.SerialNumber,
                                                                    SerialNumberVisible =
                                                                        o.SerialNumberVisible,
                                                                    Status = o.Status,
                                                                    User   = o.User.UserName,
                                                                    Id     = o.Id
                                                                }).FirstOrDefaultAsync(m => m.Id == id);
            if(ownedMachine == null) return NotFound();

            return View(ownedMachine);
        }

        // POST: OwnedMachine/Delete/5
        [HttpPost]
        [ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public async Task<IActionResult> DeleteConfirmed(long id)
        {
            OwnedMachine ownedMachine = await _context.OwnedMachines.FindAsync(id);
            _context.OwnedMachines.Remove(ownedMachine);
            await _context.SaveChangesAsync();
            return RedirectToAction(nameof(Index));
        }

        bool OwnedMachineExists(long id)
        {
            return _context.OwnedMachines.Any(e => e.Id == id);
        }
    }
}