public async Task <ServiceResult> AddAsync(AddTagDto add)
{
var exist = await _tagRepo.Select.AnyAsync(c => c.Name == add.Name);
if (exist)
{
return(await Task.FromResult(ServiceResult.Failed($"Name:{add.Name} 的文章标签已存在")));
}
var entity = Mapper.Map <TagEntity>(add);
await _tagRepo.InsertAsync(entity);
return(await Task.FromResult(ServiceResult.Successed("新增文章标签成功")));
}