public OperationResult Add(BlogDto dto)
{
try
{
var validate = Validate(dto);
if (validate != null)
return validate;
Blog blog = dto.MapTo<Blog>();
blog.createTime = DateTime.Now;
BlogRepository.Insert(blog);
return new OperationResult(OperationResultType.Success, "添加博客成功！");
}
catch (Exception ex)
{
var msg = ex.Message;
//log 记录异常信息
//返回用户友好的提示
return new OperationResult(OperationResultType.Error, "添加博客失败！");
}
}
public BlogDto GetByKey(int id)
{
var blog = this.Entities.FirstOrDefault(w => w.Id == id);
if (blog != null)
{
var dto = new BlogDto()
{
id = blog.Id,
title = blog.title
};
return dto;
}
return null;
}
private OperationResult Validate(BlogDto dto)
{
if (dto.title.IsNullOrEmpty() || dto.title.Trim().IsNullOrEmpty())
{
return new OperationResult(OperationResultType.ValidError, "博客标题不能为空！");
}
return null;
}
public OperationResult Update(BlogDto dto)
{
try
{
var validate = Validate(dto);
if (validate != null)
return validate;
Blog blog = BlogRepository.GetById(dto.id);
if (blog == null)
{
return new OperationResult(OperationResultType.QueryNull);
}
blog = dto.MapTo(blog);
BlogRepository.Update(blog);
return new OperationResult(OperationResultType.Success, "更新博客成功！");
}
catch (Exception ex)
{
var msg = ex.Message;
//log 记录异常信息
//返回用户友好的提示
return new OperationResult(OperationResultType.Error, "更新博客失败！");
}
}