public ActionResult Create(LearningData m)
{
if (ModelState.IsValid)
{
if (um.Create(m))
{
return Redirect("/Contents/html/parent_reload.htm");
}
}
ViewBag.categories = um.GetCategoryList(m.LDC_Id);
return View(m);
}
public Boolean Edit(LearningData model)
{
try
{
olsEni.Entry(model).State = EntityState.Modified;
olsEni.SaveChanges();
return true;
}
catch (Exception ex)
{
StaticHelper.RecordSystemLog(ex);
return false;
}
}
public Boolean Create(LearningData model)
{
try
{
Int32 id;
id = GetLDId();
model.LD_Id = id;
model.LD_Sort = id;
olsEni.LearningDatas.Add(model);
olsEni.SaveChanges();
return true;
}
catch (Exception ex)
{
StaticHelper.RecordSystemLog(ex);
return false;
}
}
public LearningData GetNew()
{
LearningData model;
model = new LearningData()
{
LD_Title = "",
LD_Content = "",
LD_Remark = "",
LD_AddTime = DateTime.Now,
LD_Status = (Byte)Status.Available
};
return model;
}
public ResponseJson Sort(Int32 originId, Byte sortFlag)
{
ResponseJson resJson;
resJson = new ResponseJson();
try
{
String name;
Double originSort, destSort;
LearningData originModel, destModel, adjustModel;
LearningData[] modelAry;
List<LearningData> us;
name = "资料";
modelAry = new LearningData[2];
originModel = olsEni.LearningDatas.Single(m => m.LD_Id == originId);
originSort = originModel.LD_Sort;
// 置顶
if (1 == sortFlag)
{
destSort = olsEni.LearningDatas.Min(m => m.LD_Sort);
destModel = olsEni.LearningDatas.Single(m => m.LD_Sort == destSort);
if (destSort == originSort)
{
resJson.status = ResponseStatus.Error;
resJson.message = "该" + name + "已置顶。";
return resJson;
}
originSort = destSort - 1;
originModel.LD_Sort = originSort;
}
else if (2 == sortFlag)
{
us = olsEni.LearningDatas
.Where(m => m.LD_Sort < originSort)
.OrderByDescending(m => m.LD_Sort).Take(2).ToList();
if (us.Count == 0)
{
resJson.status = ResponseStatus.Error;
resJson.message = "该" + name + "已处于顶部。";
return resJson;
}
else if (us.Count == 1)
{
destModel = us[0];
originSort = destModel.LD_Sort;
destSort = originModel.LD_Sort;
originModel.LD_Sort = originSort;
destModel.LD_Sort = destSort;
}
else
{
destModel = us[1];
destSort = destModel.LD_Sort;
originSort = Math.Round(destSort + 0.00001, 5, MidpointRounding.AwayFromZero);
originModel.LD_Sort = originSort;
}
}
else// if (3 == sortFlag)
{
us = olsEni.LearningDatas
.Where(m => m.LD_Sort > originSort)
.OrderBy(m => m.LD_Sort).Take(1).ToList();
if (us.Count == 0)
{
resJson.status = ResponseStatus.Error;
resJson.message = "该" + name + "已处于底部。";
return resJson;
}
destModel = us[0];
destSort = destModel.LD_Sort;
originSort = Math.Round(destSort + 0.00001, 5, MidpointRounding.AwayFromZero);
originModel.LD_Sort = originSort;
}
adjustModel = olsEni.LearningDatas.SingleOrDefault(m => m.LD_Sort == originSort);
if (adjustModel != null)
{
adjustModel.LD_Sort = Math.Round(originSort + 0.00001, 5, MidpointRounding.AwayFromZero);
}
if (0 == olsEni.SaveChanges())
{
resJson.status = ResponseStatus.Error;
resJson.message = ResponseMessage.SaveChangesError;
return resJson;
}
modelAry[0] = originModel;
modelAry[1] = destModel;
resJson.addition = modelAry;
resJson.status = ResponseStatus.Success;
return resJson;
}
catch (Exception ex)
{
resJson.status = ResponseStatus.Error;
resJson.message = StaticHelper.GetExceptionMessageAndRecord(ex);
return resJson;
}
}
