Events-MVC (example with htmx)
This commit is contained in:
Boris Milašinović
241
Events-MVC/Events.MVC/Controllers/EventsController.cs
Normal file
241
Events-MVC/Events.MVC/Controllers/EventsController.cs
Normal file
@@ -0,0 +1,241 @@
|
||||
using System.Text.Json;
|
||||
#if POSTGRES
|
||||
using Events.EF.Data.Postgres;
|
||||
#else
|
||||
using Events.EF.Data.MSSQL;
|
||||
#endif
|
||||
using Events.EF.Models;
|
||||
using Events.MVC.Models;
|
||||
using Events.MVC.Models.Events;
|
||||
using Events.MVC.Util.Extensions;
|
||||
using Microsoft.AspNetCore.Mvc;
|
||||
using Microsoft.EntityFrameworkCore;
|
||||
using Microsoft.Extensions.Options;
|
||||
using Sieve.Models;
|
||||
using Sieve.Services;
|
||||
|
||||
namespace Events.MVC.Controllers;
|
||||
|
||||
public class EventsController : Controller
|
||||
{
|
||||
private readonly EventsContext ctx;
|
||||
private readonly ISieveProcessor sieveProcessor;
|
||||
private readonly PagingSettings pagingSettings;
|
||||
|
||||
public EventsController(EventsContext ctx, ISieveProcessor sieveProcessor, IOptions<PagingSettings> pagingSettings)
|
||||
{
|
||||
this.ctx = ctx;
|
||||
this.sieveProcessor = sieveProcessor;
|
||||
this.pagingSettings = pagingSettings.Value;
|
||||
}
|
||||
|
||||
public async Task<IActionResult> Index(SieveModel sieveModel)
|
||||
{
|
||||
var viewModel = await BuildEventsListAsync(sieveModel);
|
||||
if (Request.Headers.ContainsKey(Constants.HtmxHeaders.Request))
|
||||
{
|
||||
return PartialView("_EventsList", viewModel);
|
||||
}
|
||||
|
||||
return View(viewModel);
|
||||
}
|
||||
|
||||
[HttpGet]
|
||||
public async Task<IActionResult> Row(int id)
|
||||
{
|
||||
var eventModel = await ctx.Events
|
||||
.AsNoTracking()
|
||||
.Select(e => new EventViewModel
|
||||
{
|
||||
Id = e.Id,
|
||||
Name = e.Name,
|
||||
EventDate = e.EventDate,
|
||||
ParticipantsCount = e.Registrations.Count
|
||||
})
|
||||
.FirstOrDefaultAsync(e => e.Id == id);
|
||||
|
||||
if (eventModel is null)
|
||||
{
|
||||
return NotFound();
|
||||
}
|
||||
|
||||
return PartialView("_EventRow", eventModel);
|
||||
}
|
||||
|
||||
[HttpGet]
|
||||
public async Task<IActionResult> EditRow(int id)
|
||||
{
|
||||
var eventModel = await ctx.Events
|
||||
.AsNoTracking()
|
||||
.Select(e => new EventViewModel
|
||||
{
|
||||
Id = e.Id,
|
||||
Name = e.Name,
|
||||
EventDate = e.EventDate
|
||||
})
|
||||
.FirstOrDefaultAsync(e => e.Id == id);
|
||||
|
||||
if (eventModel is null)
|
||||
{
|
||||
return NotFound();
|
||||
}
|
||||
|
||||
return PartialView("_EventEditRow", eventModel);
|
||||
}
|
||||
|
||||
[HttpPost]
|
||||
[ValidateAntiForgeryToken]
|
||||
public async Task<IActionResult> Create(EventViewModel model, SieveModel sieveModel)
|
||||
{
|
||||
if (!ModelState.IsValid)
|
||||
{
|
||||
Response.Headers[Constants.HtmxHeaders.Retarget] = "#create-event-form";
|
||||
Response.Headers[Constants.HtmxHeaders.Reswap] = Constants.HtmxSwap.OuterHtml;
|
||||
return PartialView("_CreateEventForm", model);
|
||||
}
|
||||
|
||||
var eventEntity = new Event
|
||||
{
|
||||
Name = model.Name,
|
||||
EventDate = model.EventDate
|
||||
};
|
||||
ctx.Events.Add(eventEntity);
|
||||
await ctx.SaveChangesAsync();
|
||||
|
||||
Response.Headers[Constants.HtmxHeaders.Trigger] = JsonSerializer.Serialize(new Dictionary<string, object?>
|
||||
{
|
||||
[Constants.HtmxEvents.EventCreated] = true,
|
||||
[Constants.HtmxEvents.ShowToast] = new
|
||||
{
|
||||
variant = Constants.ToastVariants.Success,
|
||||
title = Constants.ToastTitles.Success,
|
||||
message = $"Event '{model.Name}' was added successfully."
|
||||
}
|
||||
});
|
||||
|
||||
var viewModel = await BuildEventsListAsync(sieveModel);
|
||||
return PartialView("_EventsList", viewModel);
|
||||
}
|
||||
|
||||
[HttpPost]
|
||||
[ValidateAntiForgeryToken]
|
||||
public async Task<IActionResult> Edit(int id, EventViewModel model)
|
||||
{
|
||||
if (id != model.Id)
|
||||
{
|
||||
return BadRequest();
|
||||
}
|
||||
|
||||
if (!ModelState.IsValid)
|
||||
{
|
||||
return PartialView("_EventEditRow", model);
|
||||
}
|
||||
|
||||
var existingEvent = await ctx.Events.FirstOrDefaultAsync(e => e.Id == id);
|
||||
if (existingEvent is null)
|
||||
{
|
||||
return NotFound();
|
||||
}
|
||||
|
||||
existingEvent.Name = model.Name;
|
||||
existingEvent.EventDate = model.EventDate;
|
||||
await ctx.SaveChangesAsync();
|
||||
|
||||
return PartialView("_EventRow", new EventViewModel
|
||||
{
|
||||
Id = existingEvent.Id,
|
||||
Name = existingEvent.Name,
|
||||
EventDate = existingEvent.EventDate,
|
||||
ParticipantsCount = await ctx.Registrations.CountAsync(r => r.EventId == existingEvent.Id)
|
||||
});
|
||||
}
|
||||
|
||||
[HttpPost]
|
||||
[ValidateAntiForgeryToken]
|
||||
public async Task<IActionResult> Delete(int id, SieveModel sieveModel)
|
||||
{
|
||||
var eventEntity = await ctx.Events
|
||||
.Include(e => e.Registrations)
|
||||
.FirstOrDefaultAsync(e => e.Id == id);
|
||||
|
||||
if (eventEntity is null)
|
||||
{
|
||||
return NotFound();
|
||||
}
|
||||
|
||||
if (eventEntity.Registrations.Count > 0)
|
||||
{
|
||||
Response.StatusCode = StatusCodes.Status409Conflict;
|
||||
return Content("The event cannot be deleted because registrations exist.");
|
||||
}
|
||||
|
||||
ctx.Events.Remove(eventEntity);
|
||||
var deletedName = eventEntity.Name;
|
||||
await ctx.SaveChangesAsync();
|
||||
|
||||
Response.Headers[Constants.HtmxHeaders.Trigger] = JsonSerializer.Serialize(new Dictionary<string, object?>
|
||||
{
|
||||
[Constants.HtmxEvents.ShowToast] = new
|
||||
{
|
||||
variant = Constants.ToastVariants.Success,
|
||||
title = Constants.ToastTitles.Success,
|
||||
message = $"Event '{deletedName}' was deleted successfully."
|
||||
}
|
||||
});
|
||||
|
||||
var viewModel = await BuildEventsListAsync(sieveModel);
|
||||
return PartialView("_EventsList", viewModel);
|
||||
}
|
||||
|
||||
private async Task<PagedList<EventViewModel>> BuildEventsListAsync(SieveModel sieveModel)
|
||||
{
|
||||
sieveModel.SetDefaultPagingAndSorting(pagingSettings.PageSize, "EventDate");
|
||||
var normalizedFilters = sieveModel.Filters?.Trim() ?? string.Empty;
|
||||
var nameFilter = SieveModelExtensions.ExtractFilterValue(normalizedFilters, "Name");
|
||||
|
||||
var baseQuery = ctx.Events
|
||||
.AsNoTracking()
|
||||
.Select(e => new EventViewModel
|
||||
{
|
||||
Id = e.Id,
|
||||
Name = e.Name,
|
||||
EventDate = e.EventDate,
|
||||
ParticipantsCount = e.Registrations.Count
|
||||
});
|
||||
|
||||
var totalCount = await baseQuery.CountAsync();
|
||||
var filteredCount = string.IsNullOrWhiteSpace(normalizedFilters)
|
||||
? totalCount
|
||||
: await sieveProcessor
|
||||
.Apply(
|
||||
sieveModel,
|
||||
baseQuery,
|
||||
applyFiltering: true,
|
||||
applySorting: false,
|
||||
applyPagination: false)
|
||||
.CountAsync();
|
||||
|
||||
var pagingInfo = new PagingInfo
|
||||
{
|
||||
FilteredItemsCount = filteredCount,
|
||||
TotalItemsCount = totalCount,
|
||||
ItemsPerPage = sieveModel.PageSize!.Value,
|
||||
CurrentPage = sieveModel.Page!.Value,
|
||||
Sorts = sieveModel.Sorts ?? "EventDate",
|
||||
Filters = normalizedFilters,
|
||||
NameFilter = nameFilter
|
||||
};
|
||||
|
||||
if (pagingInfo.CurrentPage > pagingInfo.TotalPages)
|
||||
{
|
||||
pagingInfo.CurrentPage = pagingInfo.TotalPages;
|
||||
sieveModel.Page = pagingInfo.CurrentPage;
|
||||
}
|
||||
|
||||
var events = await sieveProcessor
|
||||
.Apply(sieveModel, baseQuery)
|
||||
.ToListAsync();
|
||||
|
||||
return new PagedList<EventViewModel>(events, pagingInfo);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user