public ActionResult Destroy([DataSourceRequest] DataSourceRequest request, CategoryGridModel category)
{
if (category != null)
{
var context = new ApplicationDbContext();
var categoryToDelete = context.Categories.FirstOrDefault(c => c.Id == category.Id);
context.Books.RemoveRange(categoryToDelete.Books);
context.SaveChanges();
context.Categories.Remove(categoryToDelete);
context.SaveChanges();
}
return Json(new[] { category }.ToDataSourceResult(request, ModelState));
}
public ActionResult Create([DataSourceRequest] DataSourceRequest request, CategoryGridModel category)
{
if ((category.Name == null) || (category.Name.Length < 2))
{
ModelState.AddModelError("Name", "Name should be at least 2 characters long.");
return Json(new[] { category }.ToDataSourceResult(request, ModelState));
}
if (category != null && ModelState.IsValid)
{
var context = new ApplicationDbContext();
context.Categories.Add(new Category() { Name = category.Name });
context.SaveChanges();
}
return Json(new[] { category }.ToDataSourceResult(request, ModelState));
}
public ActionResult Update([DataSourceRequest] DataSourceRequest request, CategoryGridModel category)
{
if ((category.Name == null) || (category.Name.Length < 2))
{
ModelState.AddModelError("Name", "Name should be at least 2 characters long.");
return Json(new[] { category }.ToDataSourceResult(request, ModelState));
}
if (category != null && ModelState.IsValid)
{
var context = new ApplicationDbContext();
var target = context.Categories.FirstOrDefault(p => p.Id == category.Id);
if (target != null)
{
target.Name = category.Name;
context.SaveChanges();
}
}
return Json(new[] { category }.ToDataSourceResult(request, ModelState));
}