zpc-bulletin-board/ZpcBulletinBoard/Pages/Boards/AddEdit.cshtml.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;
using ZpcBulletinBoard.Data;
using ZpcBulletinBoard.Models;
using ZpcBulletinBoard.Models.Editor;

namespace ZpcBulletinBoard.Pages.Boards

{
    //[Authorize(Roles = "Administrator,TransportThingUser,InvoicingUser")]
    public class AddEditModel(ApplicationDbContext context)
    //public class AddEditModel(ApplicationDbContext context, UserManager<IdentityApplicationUser> userManager)
        : PageModel
    {
        [BindProperty]
        public BulletinBoard Board { get; set; }

        public async Task<IActionResult> OnGetAsync(Guid? guid)
        {
            //var user = userManager.GetUserAsync(User).Result;

            if (guid == null)
            {
                Board = new BulletinBoard
                {
                    Ratio = BulletinBoard.RatioEnum.Ratio16To9,
                    Guid = Guid.NewGuid(),
                };

                return Page();
            }

            var tmpBoard = await context.BulletinBoards
                .FirstOrDefaultAsync(m => m.Guid == guid);


            if (tmpBoard == null)
            {
                return NotFound();
            }

            Board = tmpBoard;

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            System.Diagnostics.Debug.WriteLine("OnPost");

            //var user = userManager.GetUserAsync(User).Result;
            //Board.Notes = new List<Note>();
            //if (!ModelState.IsValid)
            //{
            //    System.Diagnostics.Debug.WriteLine(string.Join(",", ModelState.Where(a => a.Value.Errors.Count > 0)
            //        .Select(b => $"{b.Key} {b.Value.Errors}")));
            //    return Page();
            //}

            if (Board.IdBulletinBoard > 0)
            {
                context.Attach(Board).State = EntityState.Modified;

                try
                {
                    await context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!BoardExists(Board.IdBulletinBoard))
                    {
                        return NotFound();
                    }
                    else
                    {
                        throw;
                    }
                }

                return RedirectToPage("./Index");
            }

            // OrderNumber and OrderYear

            context.BulletinBoards.Add(Board);
            await context.SaveChangesAsync();


            return RedirectToPage("./Index");
        }


        private bool BoardExists(int id)
        {
            return context.BulletinBoards.Any(e => e.IdBulletinBoard == id);
        }
    }
}