public BlankItemDTO(BlankItem blankItem)
{
this.ID = blankItem.ID;
this.ChapterID = blankItem.ChapterID;
this.Title = blankItem.Title;
this.Image = blankItem.Image;
this.Difficulty = blankItem.Difficulty;
this.AddPerson = blankItem.AddPerson;
this.AddTime = blankItem.AddTime;
}
/// <summary>
/// 添加填空题
/// </summary>
public ServiceInvokeDTO AddBlank(BlankItem blank, List<BlankAnswer> answers)
{
log.Debug(Constant.DEBUG_START);
ServiceInvokeDTO result = null;
try
{
blankDAL.Insert(blank, answers);
result = new ServiceInvokeDTO(InvokeCode.SYS_INVOKE_SUCCESS);
}
catch (Exception ex)
{
log.Error(ex);
throw ex;
}
log.Debug(Constant.DEBUG_END);
return result;
}
public ActionResult AddBlank()
{
log.Debug(Constant.DEBUG_START);
string chapterIDString = ApiQueryUtil.QueryArgByPost("chapter_id");
string title = ApiQueryUtil.QueryArgByPost("title");
HttpPostedFileBase imageFile = Request.Files["image"];
string difficultyString = ApiQueryUtil.QueryArgByPost("difficulty");
string answersJsonString = ApiQueryUtil.QueryArgByPost("answers");
ServiceInvokeDTO result = null;
try
{
BlankItem blank = new BlankItem();
blank.ChapterID = Convert.ToInt32(chapterIDString);
blank.Title = title;
blank.Difficulty = Convert.ToInt32(difficultyString);
blank.AddPerson = (Session[Constant.SESSION_KEY_ADMIN] as Teacher).ChineseName;
if (imageFile != null)
{
byte[] imageBytes = null;
using (Stream inputStream = imageFile.InputStream)
{
MemoryStream memoryStream = inputStream as MemoryStream;
if (memoryStream == null)
{
memoryStream = new MemoryStream();
inputStream.CopyTo(memoryStream);
}
imageBytes = memoryStream.ToArray();
}
blank.Image = imageBytes;
}
List<BlankAnswer> answers = JsonConvert.DeserializeObject<List<BlankAnswer>>(answersJsonString);
result = itemDataService.AddBlank(blank, answers);
}
catch (Exception ex)
{
log.Error(ex);
result = new ServiceInvokeDTO(InvokeCode.SYS_INNER_ERROR);
}
string json = JsonConvert.SerializeObject(result, Formatting.Indented, Constant.TIME_CONVERTER);
log.Debug(Constant.DEBUG_END);
return Content(json, Constant.JSON_MIME_TYPE);
}
public BlankItemDTO(BlankItem blankItem, List<BlankAnswer> answers)
: this(blankItem)
{
this.Answers = answers;
}
/// <summary>
/// 更新实体信息
/// </summary>
public void Update(BlankItem blankItem, List<BlankAnswer> answers)
{
const string update_item_sql = @"UPDATE BlankItem SET ChapterID = @ChapterID,Title= @Title, Image = @Image,
Difficulty = @Difficulty WHERE IsDeleted = 0 AND ID = @ID";
const string delete_answer_sql = @"UPDATE BlankAnswer SET IsDeleted = 1 WHERE BlankItemID = @BlankItemID";
const string insert_answer_sql = @"INSERT INTO BlankAnswer(BlankItemID, AnswerIndex, Answer, Annotation)
VALUES (@BlankItemID, @AnswerIndex, @Answer, @Annotation);";
using (DbConnection connection = ConnectionManager.OpenConnection)
{
IDbTransaction transaction = connection.BeginTransaction();
try
{
connection.Execute(update_item_sql, blankItem, transaction);
connection.Execute(delete_answer_sql, new { BlankItemID = blankItem.ID }, transaction);
foreach (var answer in answers)
{
connection.Execute(insert_answer_sql,
new
{
BlankItemID = blankItem.ID,
AnswerName = answer.AnswerIndex,
Answer = answer.Answer,
Annotation = answer.Annotation
},
transaction
);
}
transaction.Commit();
}
catch (Exception ex)
{
transaction.Rollback();
throw ex;
}
}
}
/// <summary>
/// 添加实体信息,返回添加成功后的主键ID
/// </summary>
public void Insert(BlankItem numberBlankItem, List<BlankAnswer> answers)
{
const string insert_item_sql = @"INSERT INTO BlankItem(ChapterID, Title, Image, Difficulty, AddPerson)
VALUES (@ChapterID, @Title, @Image, @Difficulty, @AddPerson);
SELECT LAST_INSERT_ID();";
const string insert_answer_sql = @"INSERT INTO BlankAnswer(BlankItemID, AnswerIndex, Answer, Annotation)
VALUES (@BlankItemID, @AnswerIndex, @Answer, @Annotation);";
using (DbConnection connection = ConnectionManager.OpenConnection)
{
IDbTransaction transaction = connection.BeginTransaction();
try
{
int numberBlankID = connection.Query<int>(insert_item_sql, numberBlankItem, transaction).SingleOrDefault<int>();
foreach (var answer in answers)
{
connection.Execute(insert_answer_sql,
new
{
NumberBlankItemID = numberBlankID,
AnswerName = answer.AnswerIndex,
Answer = answer.Answer,
Annotation = answer.Annotation
},
transaction
);
}
transaction.Commit();
}
catch (Exception ex)
{
transaction.Rollback();
throw ex;
}
}
}