public async Task <IActionResult> ChangeQuestionSortAsync([FromBody] ChangeQuestionSortRequestDto requestDto)
{
var biz = new QuestionnaireQuestionBiz();
var model = await biz.GetAsync(requestDto.QuestionGuid);
if (model == null)
{
return(Failed(ErrorCode.UserData, "未找到此问题"));
}
var newSort = requestDto.Sort;
if (model.Sort == newSort)
{
return(Failed(ErrorCode.UserData, "问题序号未产生变化，请核对"));
}
if (model.IsDepend)
{
var dependQuestionModel = await biz.GetAsync(model.DependQuestion);
if (dependQuestionModel == null)
{
return(Failed(ErrorCode.UserData, "当前问题的依赖数据异常"));
}
if (newSort <= dependQuestionModel.Sort)
{
return(Failed(ErrorCode.UserData, $"当前问题的序号不能先于其依赖问题[第{dependQuestionModel.Sort}题]"));
}
}
//查询依赖当前问题的题目列表
var dependModels = await biz.GetModelsByDependQuestionGuidAsync(model.QuestionGuid);
if (dependModels.Any())
{
var minSortModel = dependModels.OrderBy(a => a.Sort).FirstOrDefault();
if (minSortModel.Sort <= newSort)
{
return(Failed(ErrorCode.UserData, $"第{minSortModel.Sort}题依赖当前题目，移动序号不能大于{minSortModel.Sort}"));
}
}
// 一.其他问题为待变化问题顺次移动位置
// 1.若向前移动，则原序号和新序号之间所有问题序号+1 (不包括待变化问题)
// 2.若向后移动，则原序号和新序号之间所有问题序号-1 (不包括待变化问题)
// 二.将待变化问题序号变为新序号
var result = await biz.ChangeQuestionSortAsync(model, newSort, UserID);
return(result ? Success() : Failed(ErrorCode.DataBaseError, "问题变化序号失败"));
}
