private void OnHeader2VM(SqlDataReader reader, LearnQuestionBankViewModel vm)
{
Int32 idx = 0;
vm.ID = reader.GetInt32(idx++);
vm.HID = reader.GetInt32(idx++);
vm.QuestionType = reader.GetByte(idx++);
vm.Question = reader.GetString(idx++);
if (!reader.IsDBNull(idx))
{
vm.BriefAnswer = reader.GetString(idx++);
}
else
{
++idx;
}
if (!reader.IsDBNull(idx))
{
vm.CreatedBy = reader.GetString(idx++);
}
else
{
++idx;
}
if (!reader.IsDBNull(idx))
{
vm.CreatedAt = reader.GetDateTime(idx++);
}
else
{
++idx;
}
if (!reader.IsDBNull(idx))
{
vm.UpdatedBy = reader.GetString(idx++);
}
else
{
++idx;
}
if (!reader.IsDBNull(idx))
{
vm.UpdatedAt = reader.GetDateTime(idx++);
}
else
{
++idx;
}
//if (!reader.IsDBNull(idx))
//{
// LearnQuestionBankSubItemViewModel si = new LearnQuestionBankSubItemViewModel();
// si.SubItem = reader.GetString(idx++);
// si.Detail = reader.GetString(idx++);
// if (!reader.IsDBNull(idx))
// si.Others = reader.GetString(idx++);
// else
// ++idx;
// vm.SubItemList.Add(si);
//}
}
public async Task <IActionResult> Get([FromQuery] Int32 hid, Int32 top = 100, Int32 skip = 0)
{
if (hid <= 0)
{
return(BadRequest("No Home Inputted"));
}
String usrName = String.Empty;
if (Startup.UnitTestMode)
{
usrName = UnitTestUtility.UnitTestUser;
}
else
{
var usrObj = HIHAPIUtility.GetUserClaim(this);
usrName = usrObj.Value;
}
if (String.IsNullOrEmpty(usrName))
{
return(BadRequest("User cannot recognize"));
}
BaseListViewModel <LearnQuestionBankViewModel> listVm = new BaseListViewModel <LearnQuestionBankViewModel>();
SqlConnection conn = null;
SqlCommand cmd = null;
SqlDataReader reader = null;
String queryString = "";
String strErrMsg = "";
HttpStatusCode errorCode = HttpStatusCode.OK;
try
{
queryString = this.getQueryString(true, top, skip, null, hid);
using (conn = new SqlConnection(Startup.DBConnectionString))
{
await conn.OpenAsync();
// Check Home assignment with current user
try
{
HIHAPIUtility.CheckHIDAssignment(conn, hid, usrName);
}
catch (Exception)
{
errorCode = HttpStatusCode.BadRequest;
throw;
}
cmd = new SqlCommand(queryString, conn);
reader = cmd.ExecuteReader();
if (reader.HasRows)
{
while (reader.Read())
{
listVm.TotalCount = reader.GetInt32(0);
break;
}
}
reader.NextResult();
if (reader.HasRows)
{
while (reader.Read())
{
LearnQuestionBankViewModel vm = new LearnQuestionBankViewModel();
OnHeader2VM(reader, vm);
// Check the ID exist in the list already or not.
Boolean bExist = false;
foreach (LearnQuestionBankViewModel vm2 in listVm)
{
if (vm2.ID == vm.ID)
{
bExist = true;
vm2.SubItemList.AddRange(vm.SubItemList);
}
}
if (!bExist)
{
listVm.Add(vm);
}
}
}
}
}
catch (Exception exp)
{
System.Diagnostics.Debug.WriteLine(exp.Message);
strErrMsg = exp.Message;
if (errorCode == HttpStatusCode.OK)
{
errorCode = HttpStatusCode.InternalServerError;
}
}
finally
{
if (reader != null)
{
reader.Dispose();
reader = null;
}
if (cmd != null)
{
cmd.Dispose();
cmd = null;
}
if (conn != null)
{
conn.Dispose();
conn = null;
}
}
if (errorCode != HttpStatusCode.OK)
{
switch (errorCode)
{
case HttpStatusCode.Unauthorized:
return(Unauthorized());
case HttpStatusCode.NotFound:
return(NotFound());
case HttpStatusCode.BadRequest:
return(BadRequest(strErrMsg));
default:
return(StatusCode(500, strErrMsg));
}
}
var setting = new Newtonsoft.Json.JsonSerializerSettings
{
DateFormatString = HIHAPIConstants.DateFormatPattern,
ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()
};
return(new JsonResult(listVm, setting));
}
public async Task <IActionResult> Put(int id, [FromBody] LearnQuestionBankViewModel vm)
{
String usrName = String.Empty;
if (Startup.UnitTestMode)
{
usrName = UnitTestUtility.UnitTestUser;
}
else
{
var usrObj = HIHAPIUtility.GetUserClaim(this);
usrName = usrObj.Value;
}
if (String.IsNullOrEmpty(usrName))
{
return(BadRequest("User cannot recognize"));
}
if (vm == null)
{
return(BadRequest("No data is inputted"));
}
if (vm.HID <= 0)
{
return(BadRequest("No Home Inputted"));
}
// Check
if (vm.ID != id)
{
return(BadRequest("Invalid data"));
}
if (vm.Question != null)
{
vm.Question = vm.Question.Trim();
}
if (String.IsNullOrEmpty(vm.Question))
{
return(BadRequest("Question is a must!"));
}
if (vm.QuestionType == (Byte)HIHQuestionBankType.EssayQuestion ||
vm.QuestionType == (Byte)HIHQuestionBankType.MultipleChoice)
{
}
else
{
// Non supported type
return(BadRequest("Non-supported type"));
}
// Update the database
SqlConnection conn = null;
SqlTransaction tran = null;
SqlCommand cmd = null;
String queryString = "";
String strErrMsg = "";
HttpStatusCode errorCode = HttpStatusCode.OK;
try
{
using (conn = new SqlConnection(Startup.DBConnectionString))
{
await conn.OpenAsync();
// Check Home assignment with current user
try
{
HIHAPIUtility.CheckHIDAssignment(conn, vm.HID, usrName);
}
catch (Exception)
{
errorCode = HttpStatusCode.BadRequest;
throw;
}
tran = conn.BeginTransaction();
// Question bank
queryString = @"UPDATE [dbo].[t_learn_qtn_bank]
SET [Type] = @Type
,[Question] = @Question
,[BriefAnswer] = @BriefAnswer
,[UPDATEDBY] = @UPDATEDBY
,[UPDATEDAT] = @UPDATEDAT
WHERE [HID] = @HID AND [ID] = @ID";
cmd = new SqlCommand(queryString, conn)
{
Transaction = tran
};
cmd.Parameters.AddWithValue("@HID", vm.HID);
cmd.Parameters.AddWithValue("@ID", vm.ID);
cmd.Parameters.AddWithValue("@Type", vm.QuestionType);
cmd.Parameters.AddWithValue("@Question", vm.Question);
if (!String.IsNullOrEmpty(vm.BriefAnswer))
{
cmd.Parameters.AddWithValue("@BriefAnswer", vm.BriefAnswer);
}
else
{
cmd.Parameters.AddWithValue("@BriefAnswer", DBNull.Value);
}
cmd.Parameters.AddWithValue("@UPDATEDBY", usrName);
cmd.Parameters.AddWithValue("@UPDATEDAT", DateTime.Now);
await cmd.ExecuteNonQueryAsync();
cmd.Dispose();
cmd = null;
// Question bank sub item
queryString = @"DELETE FROM [dbo].[t_learn_qtn_bank_sub] WHERE [QTNID] = " + id.ToString();
cmd = new SqlCommand(queryString, conn, tran);
await cmd.ExecuteNonQueryAsync();
cmd.Dispose();
cmd = null;
foreach (var si in vm.SubItemList)
{
queryString = @"INSERT INTO [dbo].[t_learn_qtn_bank_sub]
([QTNID]
,[SUBITEM]
,[DETAIL]
,[OTHERS])
VALUES (@QTNID
,@SUBITEM
,@DETAIL
,@OTHERS)";
cmd = new SqlCommand(queryString, conn, tran);
cmd.Parameters.AddWithValue("@QTNID", id);
cmd.Parameters.AddWithValue("@SUBITEM", si.SubItem);
cmd.Parameters.AddWithValue("@DETAIL", si.Detail);
if (!String.IsNullOrEmpty(si.Others))
{
cmd.Parameters.AddWithValue("@OTHERS", si.Others);
}
else
{
cmd.Parameters.AddWithValue("@OTHERS", DBNull.Value);
}
await cmd.ExecuteNonQueryAsync();
cmd.Dispose();
cmd = null;
}
// Tag
queryString = HIHDBUtility.GetTagDeleteString();
cmd = new SqlCommand(queryString, conn, tran);
HIHDBUtility.BindTagDeleteParameter(cmd, vm.HID, HIHTagTypeEnum.LearnQuestionBank, id);
await cmd.ExecuteNonQueryAsync();
cmd.Dispose();
cmd = null;
foreach (var tag in vm.TagTerms)
{
queryString = HIHDBUtility.GetTagInsertString();
cmd = new SqlCommand(queryString, conn, tran);
HIHDBUtility.BindTagInsertParameter(cmd, vm.HID, HIHTagTypeEnum.LearnQuestionBank, id, tag);
await cmd.ExecuteNonQueryAsync();
}
tran.Commit();
}
}
catch (Exception exp)
{
#if DEBUG
System.Diagnostics.Debug.WriteLine(exp.Message);
#endif
if (tran != null)
{
tran.Rollback();
}
strErrMsg = exp.Message;
if (errorCode == HttpStatusCode.OK)
{
errorCode = HttpStatusCode.InternalServerError;
}
}
finally
{
if (tran != null)
{
tran.Dispose();
tran = null;
}
if (cmd != null)
{
cmd.Dispose();
cmd = null;
}
if (conn != null)
{
conn.Dispose();
conn = null;
}
}
if (errorCode != HttpStatusCode.OK)
{
switch (errorCode)
{
case HttpStatusCode.Unauthorized:
return(Unauthorized());
case HttpStatusCode.NotFound:
return(NotFound());
case HttpStatusCode.BadRequest:
return(BadRequest(strErrMsg));
default:
return(StatusCode(500, strErrMsg));
}
}
var setting = new Newtonsoft.Json.JsonSerializerSettings
{
DateFormatString = HIHAPIConstants.DateFormatPattern,
ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()
};
return(new JsonResult(vm, setting));
}
public async Task <IActionResult> Get(int id, [FromQuery] Int32 hid = 0)
{
if (hid <= 0)
{
return(BadRequest("No Home Inputted"));
}
String usrName = String.Empty;
if (Startup.UnitTestMode)
{
usrName = UnitTestUtility.UnitTestUser;
}
else
{
var usrObj = HIHAPIUtility.GetUserClaim(this);
usrName = usrObj.Value;
}
if (String.IsNullOrEmpty(usrName))
{
return(BadRequest("User cannot recognize"));
}
LearnQuestionBankViewModel vm = new LearnQuestionBankViewModel();
SqlConnection conn = null;
SqlCommand cmd = null;
SqlDataReader reader = null;
String queryString = "";
String strErrMsg = "";
HttpStatusCode errorCode = HttpStatusCode.OK;
try
{
queryString = this.getQueryString(false, null, null, id, hid);
using (conn = new SqlConnection(Startup.DBConnectionString))
{
await conn.OpenAsync();
// Check Home assignment with current user
try
{
HIHAPIUtility.CheckHIDAssignment(conn, hid, usrName);
}
catch (Exception)
{
errorCode = HttpStatusCode.BadRequest;
throw;
}
cmd = new SqlCommand(queryString, conn);
reader = cmd.ExecuteReader();
// Header
if (reader.HasRows)
{
while (reader.Read())
{
OnHeader2VM(reader, vm);
break; // Shall only one item exist
}
}
else
{
errorCode = HttpStatusCode.NotFound;
throw new Exception();
}
// Item
reader.NextResult();
if (reader.HasRows)
{
while (reader.Read())
{
LearnQuestionBankSubItemViewModel svm = new LearnQuestionBankSubItemViewModel
{
// QTNID
// [SUBITEM]
SubItem = reader.GetString(1),
// [DETAIL]
Detail = reader.GetString(2)
};
// [OTHERS]
if (!reader.IsDBNull(3))
{
svm.Others = reader.GetString(3);
}
vm.SubItemList.Add(svm);
}
}
// Tag
reader.NextResult();
if (reader.HasRows)
{
while (reader.Read())
{
String strTag = reader.GetString(0);
vm.TagTerms.Add(strTag);
}
}
}
}
catch (Exception exp)
{
System.Diagnostics.Debug.WriteLine(exp.Message);
strErrMsg = exp.Message;
if (errorCode == HttpStatusCode.OK)
{
errorCode = HttpStatusCode.InternalServerError;
}
}
finally
{
if (reader != null)
{
reader.Dispose();
reader = null;
}
if (cmd != null)
{
cmd.Dispose();
cmd = null;
}
if (conn != null)
{
conn.Dispose();
conn = null;
}
}
if (errorCode != HttpStatusCode.OK)
{
switch (errorCode)
{
case HttpStatusCode.Unauthorized:
return(Unauthorized());
case HttpStatusCode.NotFound:
return(NotFound());
case HttpStatusCode.BadRequest:
return(BadRequest(strErrMsg));
default:
return(StatusCode(500, strErrMsg));
}
}
var setting = new Newtonsoft.Json.JsonSerializerSettings
{
DateFormatString = HIHAPIConstants.DateFormatPattern,
ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()
};
return(new JsonResult(vm, setting));
}
