Kursanlage und bearbeitung

MultipleChoiceTrainer/Controllers/CategoriesController.cs

@@ -0,0 +1,118 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.EntityFrameworkCore;
+using MultipleChoiceTrainer.Data;
+using MultipleChoiceTrainer.Models.DataModels;
+
+namespace MultipleChoiceTrainer.Controllers
+{
+    public class CategoriesController : Controller
+    {
+        private readonly ApplicationDbContext _context;
+
+        public CategoriesController(ApplicationDbContext context)
+        {
+            _context = context;
+        }
+
+        // GET: Categories/Details/5
+        public async Task<IActionResult> Details(int? id)
+        {
+            if (id == null)
+            {
+                return NotFound();
+            }
+
+            var category = await _context.Categories
+                .FirstOrDefaultAsync(m => m.Id == id);
+            if (category == null)
+            {
+                return NotFound();
+            }
+
+            return View(category);
+        }
+
+        // GET: Categories/Create
+        public IActionResult Create()
+        {
+            return View();
+        }
+
+        // POST: Categories/Create
+        // To protect from overposting attacks, 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("Id,Name,Description")] Category category)
+        {
+            if (ModelState.IsValid)
+            {
+                _context.Add(category);
+                await _context.SaveChangesAsync();
+                return RedirectToAction(nameof(Index), "Home");
+            }
+            return View(category);
+        }
+
+        // GET: Categories/Edit/5
+        public async Task<IActionResult> Edit(int? id)
+        {
+            if (id == null)
+            {
+                return NotFound();
+            }
+
+            var category = await _context.Categories.FindAsync(id);
+            if (category == null)
+            {
+                return NotFound();
+            }
+            return View(category);
+        }
+
+        // POST: Categories/Edit/5
+        // To protect from overposting attacks, 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(int id, [Bind("Id,Name,Description")] Category category)
+        {
+            if (id != category.Id)
+            {
+                return NotFound();
+            }
+
+            if (ModelState.IsValid)
+            {
+                try
+                {
+                    _context.Update(category);
+                    await _context.SaveChangesAsync();
+                }
+                catch (DbUpdateConcurrencyException)
+                {
+                    if (!CategoryExists(category.Id))
+                    {
+                        return NotFound();
+                    }
+                    else
+                    {
+                        throw;
+                    }
+                }
+                return RedirectToAction(nameof(Index), "Home");
+            }
+            return View(category);
+        }
+
+        private bool CategoryExists(int id)
+        {
+            return _context.Categories.Any(e => e.Id == id);
+        }
+    }
+}