[HttpGet] //读取数据库数据
public IActionResult Edit(int id) //通过Edit操作方法找到Edit视图
{
Student student = _studentRepository.GetStudent(id); //查询是否在数据库里
StudentEditVideModel studentEditVidew = new StudentEditVideModel {
Id = student.Id,
Name = student.Name,
Email = student.Email,
ClassName = student.ClassName,
ExistingPhotoPath = student.PhotoPath
};
return(View(studentEditVidew));
}
public IActionResult Edit(StudentEditVideModel model) //创建StudentEditVideModel用于接收post表单数据
{
if (ModelState.IsValid)
{
Student student = _studentRepository.GetStudent(model.Id);
student.Email = model.Email;//视图模型赋值给领域模型
student.Name = model.Name;
student.ClassName = model.ClassName;
if (model.Photos != null && model.Photos.Count > 0) //用户有无选择新头像
{
if (model.ExistingPhotoPath != null)
{
string filePath = Path.Combine(hostingEnvironment.WebRootPath, "images", model.ExistingPhotoPath);
System.IO.File.Delete(filePath);//删除数据库旧头像 //Delete没有继承所以不是这里的问题,问题在FileStream流处理
}
student.PhotoPath = ProcessUploadedFile(model);
}
Student updataStudent = _studentRepository.Update(student);
return(RedirectToAction("Index"));
}
return(View(model));
}