protected virtual async Task <BookEditDto> Create(BookEditDto input, List <long> tagIds) //添加参数, List<long> tagIds
{
//TODO:新增前的逻辑判断，是否允许新增
var entity = input.MapTo <Book>();
var entityId = await _entityRepository.InsertAndGetIdAsync(entity);
// 创建关联关系
if (tagIds.Count > 0)
{
await _entityManager.CreateBookAndBookTagRelationship(entityId, tagIds);
}
return(entity.MapTo <BookEditDto>());
}