//改
public async Task <bool> UpdateAsync(CameraPathDto dto)
{
//这一句话使用了linq
var entity = _context.CameraPaths.FirstOrDefault(u => u.Id == dto.Id);
_mapper.Map(dto, entity);
return(await _context.SaveChangesAsync() > 0);
}
//增
public async Task <string> AddAsync(CameraPathDto dto)
{
var entity = _mapper.Map <CameraPathDto, CameraPathEntity>(dto);
entity.Init();
_context.CameraPaths.Add(entity);
return(await _context.SaveChangesAsync() > 0 ? entity.Id : string.Empty);
}
public async Task <IActionResult> Add(CameraPathDto dto)
{
if (ModelState.IsValid)
{
var result = await _cameraPathService.AddAsync(dto);
if (result.IsNotBlank())
{
return(RedirectToAction("Index"));
}
}
return(View(dto));
}
public async Task <IActionResult> Edit(CameraPathDto dto)
{
if (!ModelState.IsValid)
{
return(View(dto));
}
var result = await _cameraPathService.UpdateAsync(dto);
if (result)
{
return(RedirectToAction("Index"));
}
return(View(dto));
}