public async Task <bool> IsExist(Expression <Func <DataDefineLibraryModel, bool> > predicate)
{
var ret = await _dlr.Find(predicate).FirstOrDefaultAsync();
if (ret != null)
{
return(true);
}
return(false);
}
public async Task <BaseResponse> DeleteCategoryAsync(string Account, int Id)
{
var cate = await _cr.FindAsync(Id);
if (cate == null)
{
return(new BaseResponse {
Success = false, Message = "输入的分类标示不存在"
});
}
//查找datadefinelibrary和typedatadefine中是否使用
var dl = await _dl.Find(a => a.Category != null).ToListAsync();
var dle = dl.Where(a => a.Category.Split(',').Contains(Id.ToString()));
if (dle.Count() > 0)
{
return(new BaseResponse {
Success = false, Message = "数据定义库中存在使用该分类标示的数据，不能删除"
});
}
var dt = await _tr.Find(a => a.Category != null).ToListAsync();
var tle = dt.Where(a => a.Category.Split(',').Contains(Id.ToString()));
if (tle.Count() > 0)
{
return(new BaseResponse {
Success = false, Message = "类型数据定义中存在使用该分类标示的数据，不能删除"
});
}
try
{
await _cr.RemoveAsync(cate);
_log.LogInformation($"{Account}删除标示为{Id}的分类数据成功");
return(new BaseResponse {
Success = true, Message = "删除分类数据成功"
});
}
catch (Exception ex)
{
_log.LogError($"{Account}删除标示为{Id}的分类数据失败，失败原因:{ex.Message}->{ex.StackTrace}->{ex.InnerException}");
return(new BaseResponse {
Success = false, Message = "删除数据失败，请联系管理员"
});
}
}