public async Task <IActionResult> Get([FromQuery] Int32 hid = 0, Int32 top = 100, Int32 skip = 0)
{
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"));
}
List <LearnCategoryViewModel> listVm = null;
SqlConnection conn = null;
SqlCommand cmd = null;
SqlDataReader reader = null;
String queryString = "";
String strErrMsg = "";
HttpStatusCode errorCode = HttpStatusCode.OK;
try
{
var cacheKey = String.Format(CacheKeys.LearnCtgyList, hid);
if (_cache.TryGetValue <List <LearnCategoryViewModel> >(cacheKey, out listVm))
{
// Do nothing
}
else
{
listVm = new List <LearnCategoryViewModel>();
queryString = HIHDBUtility.getLearnCategoryQueryString() + " WHERE [HID] IS NULL OR [HID] = " + hid.ToString();
using (conn = new SqlConnection(Startup.DBConnectionString))
{
await conn.OpenAsync();
// Check Home assignment with current user
if (hid > 0)
{
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())
{
LearnCategoryViewModel vm = new LearnCategoryViewModel();
HIHDBUtility.LearnCategory_DB2VM(reader, vm);
listVm.Add(vm);
}
}
}
_cache.Set <List <LearnCategoryViewModel> >(cacheKey, listVm, TimeSpan.FromMinutes(20));
}
}
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> Post([FromBody] LearnCategoryViewModel vm)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
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.Name != null)
{
vm.Name = vm.Name.Trim();
}
if (String.IsNullOrEmpty(vm.Name))
{
return(BadRequest("Name is a must!"));
}
// Update the database
SqlConnection conn = null;
SqlCommand cmd = null;
SqlDataReader reader = null;
String queryString = "";
Int32 nNewID = -1;
String strErrMsg = "";
HttpStatusCode errorCode = HttpStatusCode.OK;
try
{
queryString = @"SELECT [ID]
FROM [dbo].[t_learn_ctgy] WHERE [Name] = N'" + vm.Name + "'";
using (conn = new SqlConnection(Startup.DBConnectionString))
{
await conn.OpenAsync();
// Check Home assignment with current user
if (vm.HID.HasValue && vm.HID.Value > 0)
{
try
{
HIHAPIUtility.CheckHIDAssignment(conn, vm.HID.Value, usrName);
}
catch (Exception)
{
errorCode = HttpStatusCode.BadRequest;
throw;
}
}
cmd = new SqlCommand(queryString, conn);
reader = cmd.ExecuteReader();
if (reader.HasRows)
{
Int32 nDuplicatedID = -1;
while (reader.Read())
{
nDuplicatedID = reader.GetInt32(0);
break;
}
errorCode = HttpStatusCode.BadRequest;
throw new Exception("Object with name already exists: " + nDuplicatedID.ToString());
}
else
{
reader.Dispose();
reader = null;
cmd.Dispose();
cmd = null;
// Now go ahead for the creating
queryString = HIHDBUtility.getLearnCategoryInsertString();
cmd = new SqlCommand(queryString, conn);
HIHDBUtility.bindLearnCategoryInsertParameter(cmd, vm, usrName);
SqlParameter idparam = cmd.Parameters.AddWithValue("@Identity", SqlDbType.Int);
idparam.Direction = ParameterDirection.Output;
Int32 nRst = await cmd.ExecuteNonQueryAsync();
nNewID = (Int32)idparam.Value;
}
}
}
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));
}
}
vm.ID = nNewID;
var setting = new Newtonsoft.Json.JsonSerializerSettings
{
DateFormatString = HIHAPIConstants.DateFormatPattern,
ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()
};
return(new JsonResult(vm, setting));
}
