protected void Page_Load(object sender, EventArgs e)
{
// set <currentUser> to information about the current user, and add the current user's list
// of training to the TrainingGrid table; for best performance, both these requests are
// done in a single call to the database
LearningStoreJob job = LStore.CreateJob();
RequestCurrentUserInfo(job);
RequestMyTraining(job, null);
ReadOnlyCollection <object> results = job.Execute();
LStoreUserInfo currentUser = GetCurrentUserInfoResults((DataTable)results[0]);
GetMyTrainingResultsToHtml((DataTable)results[1], TrainingGrid);
// update the title
MyUserName.Text = Server.HtmlEncode(currentUser.Name);
// if there is no training (i.e. if TrainingGrid contains only the header row), initially
// hide TrainingGrid and show a message instructing the user to upload content
if (TrainingGrid.Rows.Count == 1)
{
TrainingPanel.Attributes.Add("style", "display: none");
}
else
{
NoTrainingMessage.Attributes.Add("style", "display: none");
}
// since there is no initial selection, intially disable the "Delete Packages" link
DeletePackagesLink.Attributes.Add("disabled", "true");
// set the version number
VersionNumber.Text = System.Text.RegularExpressions.Regex.Match(
typeof(LearningStore).Assembly.FullName, @"\bVersion=(\d+\.\d+.\d+)\.").Groups[1].Value;
}
/// <summary>
/// Adds package to the database
/// </summary>
/// <param name="package">Package value represents package object with necessary information.</param>
public Training AddPackage(Package package)
{
PackageItemIdentifier packageId;
ValidationResults importLog;
using (PackageReader packageReader = package.GetPackageReader())
{
AddPackageResult result = PStore.AddPackage(packageReader, new PackageEnforcement(false, false, false));
packageId = result.PackageId;
importLog = result.Log;
}
// fill in the application-specific columns of the PackageItem table
LearningStoreJob job = LStore.CreateJob();
Dictionary <string, object> properties = new Dictionary <string, object>();
properties[Schema.PackageItem.Owner] = new UserItemIdentifier(package.Owner);
properties[Schema.PackageItem.FileName] = package.FileName;
properties[Schema.PackageItem.UploadDateTime] = package.UploadDateTime;
job.UpdateItem(packageId, properties);
job.Execute();
// retrieve information about the package
job = LStore.CreateJob();
RequestMyTraining(job, packageId);
DataTable dataTableResults = job.Execute <DataTable>();
Training training = new Training(dataTableResults.Rows[0]);
return(training);
}
/// <summary>
/// Retrieves information about the current user from the LearningStore
/// database.
/// </summary>
///
public LStoreUserInfo GetCurrentUserInfo()
{
LearningStoreJob job = LStore.CreateJob();
RequestCurrentUserInfo(job);
return(GetCurrentUserInfoResults(job.Execute <DataTable>()));
}
public IEnumerable <AttemptResult> GetAllAttempts()
{
List <AttemptResult> result = new List <AttemptResult>();
LearningStoreJob job = LStore.CreateJob();
RequestAllAttempts(job);
DataTable dataTable = job.Execute <DataTable>();
foreach (DataRow dataRow in dataTable.AsEnumerable())
{
AttemptItemIdentifier attemptItemId;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.AttemptId], out attemptItemId);
long attemptId = attemptItemId.GetKey();
String userKey;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.UserItemKey], out userKey);
User user = UserService.GetUsers().Single(curr => curr.Id.ToString() == userKey);
if (user == null)
{
throw new NoNullAllowedException("Error while getting user with id = " + userKey);
}
Int32 topicId;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.ThemeId], out topicId);
Topic topic = DisciplineService.GetTopic(topicId);
if (topic == null)
{
throw new NoNullAllowedException("Error while getting topic with id = " + topicId);
}
Microsoft.LearningComponents.CompletionStatus completionStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.CompletionStatus], out completionStatus);
IUDICO.Common.Models.Shared.Statistics.CompletionStatus iudicoCompletionStatus = (IUDICO.Common.Models.Shared.Statistics.CompletionStatus)completionStatus;
Microsoft.LearningComponents.AttemptStatus attemptStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.AttemptStatus], out attemptStatus);
IUDICO.Common.Models.Shared.Statistics.AttemptStatus iudicoAttemptStatus = (IUDICO.Common.Models.Shared.Statistics.AttemptStatus)attemptStatus;
Microsoft.LearningComponents.SuccessStatus successStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AllAttemptsResults.SuccessStatus], out successStatus);
IUDICO.Common.Models.Shared.Statistics.SuccessStatus iudicoSuccessStatus = (IUDICO.Common.Models.Shared.Statistics.SuccessStatus)successStatus;
DateTime?startTime;
LStoreHelper.Cast(dataRow[Schema.AllAttemptsResults.StartedTimestamp], out startTime);
DateTime?finishTime;
LStoreHelper.Cast(dataRow[Schema.AllAttemptsResults.FinishedTimestamp], out finishTime);
float?scaledScore;
LStoreHelper.Cast <float>(dataRow[Schema.AllAttemptsResults.Score], out scaledScore);
// Create AttemptResult object
AttemptResult attemptResult = new AttemptResult(attemptId, user, topic, iudicoCompletionStatus, iudicoAttemptStatus, iudicoSuccessStatus, startTime, finishTime, scaledScore);
result.Add(attemptResult);
}
return(result);
}
/// <summary>
/// Reads a <c>DataTable</c>, returned by <c>Job.Execute</c>, containing
/// the results requested by a previous call to
/// <c>RequestCurrentUserInfo</c>. Returns an <c>LStoreUserInfo</c>
/// object containing information about the user. If the user isn't
/// already listed in LearningStore, a separate call to the database is
/// made to add them.
/// </summary>
///
/// <param name="dataTable">A <c>DataTable</c> returned from
/// <c>Job.Execute</c>.</param>
///
protected LStoreUserInfo GetCurrentUserInfoResults(DataTable dataTable)
{
DataRowCollection results = dataTable.Rows;
LearningStoreJob job = LStore.CreateJob();
UserItemIdentifier userId;
string userName;
if (results.Count == 0)
{
// the user isn't listed in the UserItem table -- add them...
// set <userName> to the name of the user that SCORM will use
#if false
// the following code queries Active Directory for the full name
// of the user (for example, "Karen Berg") -- this code assumes a
// particular Active Directory configuration which may or may not
// work in your situation
string adsiPath = String.Format("WinNT://{0},user",
UserIdentity.Name.Replace(@"\", "/"));
using (DirectoryEntry de = new DirectoryEntry(adsiPath))
userName = (string)de.Properties["FullName"].Value;
#else
// the following code uses the "name" portion of the user's
// "domain\name" network account name as the name of the user
userName = UserName;
int backslash = userName.IndexOf('\\');
if (backslash >= 0)
{
userName = userName.Substring(backslash + 1);
}
#endif
// create the UserItem for this user in LearningStore; we use
// AddOrUpdateItem() instead of AddItem() in case this learner
// was added by another application between the check above and
// the code below
job = LStore.CreateJob();
Dictionary <string, object> uniqueValues =
new Dictionary <string, object>();
uniqueValues[Schema.UserItem.Key] = UserKey;
Dictionary <string, object> addValues =
new Dictionary <string, object>();
addValues[Schema.UserItem.Name] = userName;
job.AddOrUpdateItem(Schema.UserItem.ItemTypeName,
uniqueValues, addValues, null, true);
userId = new UserItemIdentifier(job.Execute <LearningStoreItemIdentifier>());
}
else
{
userId = new UserItemIdentifier((LearningStoreItemIdentifier)
results[0][Schema.Me.UserId]);
userName = (string)results[0][Schema.Me.UserName];
}
// return a LStoreUserInfo object
return(new LStoreUserInfo(userId, userName));
}
/// <summary>
/// Uses <c>RequestCurrentUserInfo</c> and checks user existance
/// by calling <c>CheckCurrentUserIdentifier</c> which returns user id based
/// on currently iudico-authorized user.
/// </summary>
/// <returns>UserItemIdentifier value which represents UserItem primary ID.</returns>
protected UserItemIdentifier GetCurrentUserIdentifier()
{
LearningStoreJob job = LStore.CreateJob();
RequestCurrentUserInfo(job);
ReadOnlyCollection <object> results = job.Execute();
UserItemIdentifier result = CheckCurrentUserIdentifier((DataTable)results[0]);
return(result);
}
public IEnumerable <AttemptResult> GetResults(User user, Topic topic)
{
List <AttemptResult> result = new List <AttemptResult>();
LearningStoreJob job = LStore.CreateJob();
RequestAttemptsByTopicAndUser(job, user.Id.ToString(), topic.Id);
DataTable dataTable = job.Execute <DataTable>();
foreach (DataRow dataRow in dataTable.AsEnumerable())
{
AttemptItemIdentifier attemptItemId;
LStoreHelper.CastNonNull(dataRow[Schema.AttemptsResultsByThemeAndUser.AttemptId], out attemptItemId);
long attemptId = attemptItemId.GetKey();
Microsoft.LearningComponents.CompletionStatus completionStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AttemptsResultsByThemeAndUser.CompletionStatus], out completionStatus);
IUDICO.Common.Models.Shared.Statistics.CompletionStatus iudicoCompletionStatus = (IUDICO.Common.Models.Shared.Statistics.CompletionStatus)completionStatus;
Microsoft.LearningComponents.AttemptStatus attemptStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AttemptsResultsByThemeAndUser.AttemptStatus], out attemptStatus);
IUDICO.Common.Models.Shared.Statistics.AttemptStatus iudicoAttemptStatus = (IUDICO.Common.Models.Shared.Statistics.AttemptStatus)attemptStatus;
Microsoft.LearningComponents.SuccessStatus successStatus;
LStoreHelper.CastNonNull(dataRow[Schema.AttemptsResultsByThemeAndUser.SuccessStatus], out successStatus);
IUDICO.Common.Models.Shared.Statistics.SuccessStatus iudicoSuccessStatus = (IUDICO.Common.Models.Shared.Statistics.SuccessStatus)successStatus;
DateTime?startTime;
LStoreHelper.Cast(dataRow[Schema.AttemptsResultsByThemeAndUser.StartedTimestamp], out startTime);
DateTime?finishTime;
LStoreHelper.Cast(dataRow[Schema.AllAttemptsResults.FinishedTimestamp], out finishTime);
float?score;
LStoreHelper.Cast <float>(dataRow[Schema.AttemptsResultsByThemeAndUser.Score], out score);
float?scaledScore = null;
if (score != null)
{
scaledScore = score / 100;
}
// Create AttemptResult object
AttemptResult attemptResult = new AttemptResult(attemptId, user, topic, iudicoCompletionStatus, iudicoAttemptStatus, iudicoSuccessStatus, startTime, finishTime, scaledScore);
result.Add(attemptResult);
}
return(result);
}
/// <summary>
/// Creates attempt on given organization and returns attempt identifier.
/// </summary>
/// <param name="orgID">Long integer value represents organization identifier to create attempt on.</param>
/// <returns>Long integer value, representing attempt identifier of created attempt.</returns>
protected AttemptItemIdentifier CreateAttempt(long orgID, int topicId)
{
ActivityPackageItemIdentifier organizationID = new ActivityPackageItemIdentifier(orgID);
StoredLearningSession session = StoredLearningSession.CreateAttempt(this.PStore, this.GetCurrentUserIdentifier(), organizationID, LoggingOptions.LogAll);
// TODO: add IudicoTopicRef
LearningStoreJob job = LStore.CreateJob();
Dictionary <string, object> dic = new Dictionary <string, object>();
dic.Add(Schema.AttemptItem.IudicoThemeRef, topicId);
job.UpdateItem(session.AttemptId, dic);
job.Execute();
return(session.AttemptId);
}
/// <summary>
/// Deletes pacakge and related attempts from database.
/// </summary>
/// <param name="packId">Long integer value represents package identifier.</param>
protected void DeletePackage(long packId)
{
// set <packageId> to the ID of this package
PackageItemIdentifier packageId = new PackageItemIdentifier(packId);
// before we delete the package, we need to delete all attempts on the package --
// the following query looks for those attempts
LearningStoreJob job = LStore.CreateJob();
LearningStoreQuery query = LStore.CreateQuery(
Schema.MyAttempts.ViewName);
query.AddCondition(Schema.MyAttempts.PackageId,
LearningStoreConditionOperator.Equal, packageId);
query.AddCondition(Schema.MyAttempts.AttemptId,
LearningStoreConditionOperator.NotEqual, null);
query.AddColumn(Schema.MyAttempts.AttemptId);
query.AddSort(Schema.MyAttempts.AttemptId,
LearningStoreSortDirection.Ascending);
job.PerformQuery(query);
DataTable dataTable = job.Execute <DataTable>();
AttemptItemIdentifier previousAttemptId = null;
// loop once for each attempt on this package
foreach (DataRow dataRow in dataTable.Rows)
{
// set <attemptId> to the ID of this attempt
AttemptItemIdentifier attemptId;
LStoreHelper.CastNonNull(dataRow["AttemptId"], out attemptId);
// if <attemptId> is a duplicate attempt ID, skip it; note that the query
// results are sorted by attempt ID (see above)
if ((previousAttemptId != null) &&
(previousAttemptId.GetKey() == attemptId.GetKey()))
{
continue;
}
// delete this attempt
StoredLearningSession.DeleteAttempt(LStore, attemptId);
// continue to the next attempt
previousAttemptId = attemptId;
}
// delete the package
PStore.DeletePackage(packageId);
}
/// <summary>
/// Retrieves collection of trainings for current user.
/// </summary>
/// <returns>IEnumerable collection of Training objects.</returns>
public IEnumerable <Training> GetTrainings()
{
LearningStoreJob job = LStore.CreateJob();
RequestMyTraining(job, null);
DataTable results = job.Execute <DataTable>();
List <Training> packages = new List <Training>();
foreach (DataRow dataRow in results.AsEnumerable())
{
// Create Training object
Training training = new Training(dataRow);
packages.Add(training);
}
return(packages);
}
/// <summary>
/// Adds package to the database.
/// </summary>
/// <param name="package">Package value represents package object with necessary information.</param>
protected PackageItemIdentifier AddPackage(Package package)
{
PackageItemIdentifier packageId = null;
ValidationResults importLog;
using (PackageReader packageReader = package.GetPackageReader())
{
AddPackageResult result = PStore.AddPackage(packageReader, new PackageEnforcement(false, false, false));
packageId = result.PackageId;
importLog = result.Log;
}
LearningStoreJob job = LStore.CreateJob();
Dictionary <string, object> dic = new Dictionary <string, object>();
dic.Add(Schema.PackageItem.IudicoCourseRef, package.CourseID);
job.UpdateItem(packageId, dic);
job.Execute();
return(packageId);
}
/// <summary>
/// Retrieves package id by specified IUDICO course.
/// </summary>
/// <param name="course">Course object represents iudico course entity.</param>
/// <returns>PackageItemIdentifier value representing corresponding MLC Package ID.</returns>
protected PackageItemIdentifier GetPackageIdentifier(int courseId)
{
PackageItemIdentifier result = null;
LearningStoreJob job = LStore.CreateJob();
LearningStoreQuery query = LStore.CreateQuery(Schema.PackageIdByCourse.ViewName);
query.AddColumn(Schema.PackageIdByCourse.PackageId);
query.SetParameter(Schema.PackageIdByCourse.IudicoCourseRef, courseId);
job.PerformQuery(query);
ReadOnlyCollection <object> resultList = job.Execute();
DataTable dataTable = (DataTable)resultList[0];
if (dataTable.Rows.Count > 0)
{
LStoreHelper.Cast(dataTable.Rows[0][Schema.PackageIdByCourse.PackageId], out result);
}
return(result);
}
/// <summary>
/// Reads a <c>DataTable</c>, returned by <c>Job.Execute</c>, containing
/// the results requested by a previous call to
/// <c>RequestCurrentUserInfo</c>. Returns an <c>UserItemIdentifier</c>
/// object containing identifier of user. If the user isn't
/// already listed in LearningStore, a separate call to the database is
/// made to add them.
/// </summary>
///
/// <param name="dataTable">A <c>DataTable</c> returned from
/// <c>Job.Execute</c>.</param>
///
private UserItemIdentifier CheckCurrentUserIdentifier(DataTable dataTable)
{
DataRowCollection results = dataTable.Rows;
LearningStoreJob job = LStore.CreateJob();
UserItemIdentifier userId;
string userName;
if (results.Count == 0)
{
// the user isn't listed in the UserItem table -- add them...
// set <userName> to the name of the user that SCORM will use
userName = GetCurrentIudicoUser().Name;
// create the UserItem for this user in LearningStore; we use
// AddOrUpdateItem() instead of AddItem() in case this learner
// was added by another application between the check above and
// the code below
job = LStore.CreateJob();
Dictionary <string, object> uniqueValues =
new Dictionary <string, object>();
uniqueValues[Schema.UserItem.Key] = CurrentIudicoUserKey.ToString();
Dictionary <string, object> addValues =
new Dictionary <string, object>();
addValues[Schema.UserItem.Name] = userName;
job.AddOrUpdateItem(Schema.UserItem.ItemTypeName,
uniqueValues, addValues, null, true);
userId = new UserItemIdentifier(job.Execute <LearningStoreItemIdentifier>());
}
else
{
userId = new UserItemIdentifier((LearningStoreItemIdentifier)
results[0][Schema.Me.UserId]);
}
// return a UserItemIdentifier object
return(userId);
}
/// <summary>
/// Retrieves Organization Id by specified package oidentifier.
/// </summary>
/// <param name="packageId"><c>PackageItemIdentifier</c> value representing package id, organization is being searched by.</param>
/// <returns><c>ActivityPackageItemIdentifier</c> value, which represents organization identifier of specified package.</returns>
protected ActivityPackageItemIdentifier GetOrganizationIdentifier(PackageItemIdentifier packageId)
{
ActivityPackageItemIdentifier result = null;
LearningStoreJob job = LStore.CreateJob();
LearningStoreQuery query = LStore.CreateQuery(Schema.RootActivityByPackage.ViewName);
query.AddColumn(Schema.RootActivityByPackage.RootActivity);
query.SetParameter(Schema.RootActivityByPackage.PackageId, packageId);
job.PerformQuery(query);
var resultList = job.Execute();
DataTable dataTable = (DataTable)resultList[0];
if (dataTable.Rows.Count > 0)
{
LStoreHelper.Cast(dataTable.Rows[0][Schema.RootActivityByPackage.RootActivity], out result);
}
return(result);
}
/// <summary>
/// Retrieves attempt identifier for specified organization id and Iudico topic id.
/// </summary>
/// <param name="orgId"><c>ActivityPackageItemIdentifier</c> value representing Organization ID.</param>
/// <param name="topicId">Integer value - IUDICO topic id.</param>
/// <returns><c>AttemptItemIdentifier</c> value representing Attempt Identifier.</returns>
protected AttemptItemIdentifier GetAttemptIdentifier(ActivityPackageItemIdentifier orgId, int topicId)
{
AttemptItemIdentifier result = null;
LearningStoreJob job = LStore.CreateJob();
LearningStoreQuery query = LStore.CreateQuery(Schema.MyAttempts.ViewName);
query.AddColumn(Schema.MyAttempts.AttemptId);
query.AddCondition(Schema.MyAttempts.OrganizationId, LearningStoreConditionOperator.Equal, orgId);
query.AddCondition(Schema.MyAttempts.ThemeId, LearningStoreConditionOperator.Equal, topicId);
job.PerformQuery(query);
ReadOnlyCollection <object> resultList = job.Execute();
DataTable dataTable = (DataTable)resultList[0];
if (dataTable.Rows.Count > 0)
{
// get last result
LStoreHelper.Cast(dataTable.Rows[dataTable.Rows.Count - 1][Schema.MyAttempts.AttemptId], out result);
}
return(result);
}
protected void DeletePackagesButton_Click(object sender, EventArgs e)
{
// the user clicked "Upload"...
// hide the confirmation panel
ConfirmMessage.Visible = false;
// the PackagesToDelete hidden form element contains a comma-delimited list of IDs of
// packages to delete (copied from <dialogArguments> on the client) -- attempt to delete
// those packages, and set <deleted> to the IDs of packages successfully deleted
List <string> deleted = new List <string>();
try
{
// loop once for each package to delete
foreach (string id in PackagesToDelete.Value.Split(','))
{
// set <packageId> to the ID of this package
PackageItemIdentifier packageId = new PackageItemIdentifier(
Convert.ToInt64(id, CultureInfo.InvariantCulture));
// before we delete the package, we need to delete all attempts on the package --
// the following query looks for those attempts
LearningStoreJob job = LStore.CreateJob();
LearningStoreQuery query = LStore.CreateQuery(
Schema.MyAttemptsAndPackages.ViewName);
query.AddCondition(Schema.MyAttemptsAndPackages.PackageId,
LearningStoreConditionOperator.Equal, packageId);
query.AddCondition(Schema.MyAttemptsAndPackages.AttemptId,
LearningStoreConditionOperator.NotEqual, null);
query.AddColumn(Schema.MyAttemptsAndPackages.AttemptId);
query.AddSort(Schema.MyAttemptsAndPackages.AttemptId,
LearningStoreSortDirection.Ascending);
job.PerformQuery(query);
DataTable dataTable = job.Execute <DataTable>();
AttemptItemIdentifier previousAttemptId = null;
// loop once for each attempt on this package
foreach (DataRow dataRow in dataTable.Rows)
{
// set <attemptId> to the ID of this attempt
AttemptItemIdentifier attemptId;
LStoreHelper.CastNonNull(dataRow["AttemptId"], out attemptId);
// if <attemptId> is a duplicate attempt ID, skip it; note that the query
// results are sorted by attempt ID (see above)
if ((previousAttemptId != null) &&
(previousAttemptId.GetKey() == attemptId.GetKey()))
{
continue;
}
// delete this attempt
StoredLearningSession.DeleteAttempt(LStore, attemptId);
// continue to the next attempt
previousAttemptId = attemptId;
}
// delete the package
PStore.DeletePackage(packageId);
// add the package ID to the list of deleted packages
deleted.Add(id);
}
// the operation was successful, and there are no messages to
// display to the user, so close the dialog
CloseDialogScript.Visible = true;
}
catch (Exception ex)
{
// an unexpected error occurred -- display a generic message that
// doesn't include the exception message (since that message may
// include sensitive information), and write the exception message
// to the event log
ErrorIntro.Visible = true;
ErrorMessage.Visible = true;
ErrorMessage.Controls.Add(new System.Web.UI.LiteralControl(
Server.HtmlEncode("A serious error occurred. Please contact your system administrator. More information has been written to the server event log.")));
LogEvent(System.Diagnostics.EventLogEntryType.Error,
"An exception occurred while deleting a package:\n\n{0}\n\n", ex.ToString());
}
// update the buttons
DeletePackagesButton.Visible = false;
CloseButton.Text = "OK";
// set the hidden form element PackagesSuccessfullyDeleted to a
// comma-separated list of IDs of packages that were successfully
// deleted, and enable the client-side script that communicates this
// information to the parent page
PackagesSuccessfullyDeleted.Value = String.Join(",", deleted.ToArray());
UpdateParentPageScript.Visible = true;
}
protected void Page_Load(object sender, EventArgs e)
{
// set <attemptId> to the ID of this attempt
AttemptItemIdentifier attemptId = new AttemptItemIdentifier(
Convert.ToInt64(Request.QueryString["AttemptId"], CultureInfo.InvariantCulture));
// set <previousEntryId> to the ID of the sequencing log entry that we most recently
// displayed; newer entries than that will be highlighted
long previousEntryId;
string value = Request.QueryString["PreviousEntryId"];
if (value == null)
{
previousEntryId = long.MaxValue;
}
else
{
previousEntryId = Convert.ToInt64(value, CultureInfo.InvariantCulture);
}
try
{
// create a job to execute two queries
LearningStoreJob job = LStore.CreateJob();
// first query: get the package name and organization title of this attempt
LearningStoreQuery query = LStore.CreateQuery(Schema.MyAttemptsAndPackages.ViewName);
query.AddColumn(Schema.MyAttemptsAndPackages.PackageFileName);
query.AddColumn(Schema.MyAttemptsAndPackages.OrganizationTitle);
query.AddCondition(Schema.MyAttemptsAndPackages.AttemptId,
LearningStoreConditionOperator.Equal, attemptId);
job.PerformQuery(query);
// second query: get the contents of the sequencing log for this attempt
query = LStore.CreateQuery(Schema.SequencingLog.ViewName);
query.AddColumn(Schema.SequencingLog.Id);
query.AddColumn(Schema.SequencingLog.Timestamp);
query.AddColumn(Schema.SequencingLog.EventType);
query.AddColumn(Schema.SequencingLog.NavigationCommand);
query.AddColumn(Schema.SequencingLog.Message);
query.SetParameter(Schema.SequencingLog.AttemptId, attemptId);
query.AddSort(Schema.SequencingLog.Id,
LearningStoreSortDirection.Descending);
job.PerformQuery(query);
// execute the job
ReadOnlyCollection <object> results = job.Execute();
DataTable attemptInfoDataTable = (DataTable)results[0];
DataTable sequencingLogDataTable = (DataTable)results[1];
// extract information from the first query into local variables
DataRow attemptInfo = attemptInfoDataTable.Rows[0];
string packageFileName;
LStoreHelper.CastNonNull(attemptInfo[Schema.MyAttemptsAndPackages.PackageFileName],
out packageFileName);
string organizationTitle;
LStoreHelper.CastNonNull(attemptInfo[Schema.MyAttemptsAndPackages.OrganizationTitle],
out organizationTitle);
// set <trainingName> to the name to use for this attempt
string trainingName;
if (organizationTitle.Length == 0)
{
trainingName = packageFileName;
}
else
{
trainingName = String.Format("{0} - {1}", packageFileName, organizationTitle);
}
// copy <trainingName> to the UI
TrainingName.Text = Server.HtmlEncode(trainingName);
// set <maxLogEntryId> to the highest-numbered log entry ID -- which is the first one,
// since they're sorted by descending entry ID
SequencingLogEntryItemIdentifier maxLogEntryId;
if (sequencingLogDataTable.Rows.Count > 0)
{
DataRow dataRow = sequencingLogDataTable.Rows[0];
LStoreHelper.CastNonNull(dataRow[Schema.SequencingLog.Id],
out maxLogEntryId);
}
else
{
maxLogEntryId = new SequencingLogEntryItemIdentifier(-1);
}
// loop once for each item in the sequencing log
foreach (DataRow dataRow in sequencingLogDataTable.Rows)
{
// extract information from <dataRow> into local variables
SequencingLogEntryItemIdentifier logEntryId;
LStoreHelper.CastNonNull(dataRow[Schema.SequencingLog.Id],
out logEntryId);
DateTime?time;
LStoreHelper.Cast(dataRow[Schema.SequencingLog.Timestamp],
out time);
SequencingEventType?eventType;
LStoreHelper.Cast(dataRow[Schema.SequencingLog.EventType],
out eventType);
NavigationCommand?navigationCommand;
LStoreHelper.Cast(dataRow[Schema.SequencingLog.NavigationCommand],
out navigationCommand);
string message;
LStoreHelper.CastNonNull(dataRow[Schema.SequencingLog.Message],
out message);
// begin the HTML table row
TableRow htmlRow = new TableRow();
// highlight this row if it's new since the last refresh
if (logEntryId.GetKey() > previousEntryId)
{
htmlRow.CssClass = "Highlight";
}
// add the "ID" HTML cell
TableCell htmlCell = new TableCell();
htmlCell.CssClass = "Id_";
htmlCell.Wrap = false;
htmlCell.Text = NoBr(Server.HtmlEncode(logEntryId.GetKey().ToString()));
htmlRow.Cells.Add(htmlCell);
// add the "Time" HTML cell
htmlCell = new TableCell();
htmlCell.CssClass = "Time_";
htmlCell.Wrap = false;
htmlCell.Text = NoBr(Server.HtmlEncode(String.Format("{0:d} {0:t}", time)));
htmlRow.Cells.Add(htmlCell);
// add the "EventType" HTML cell
htmlCell = new TableCell();
htmlCell.CssClass = "EventType_";
htmlCell.Wrap = false;
htmlCell.Text = NoBr(Server.HtmlEncode(eventType.ToString()));
htmlRow.Cells.Add(htmlCell);
// add the "NavigationCommand" HTML cell
htmlCell = new TableCell();
htmlCell.CssClass = "NavigationCommand_";
htmlCell.Wrap = false;
htmlCell.Text = NoBr(Server.HtmlEncode(navigationCommand.ToString()));
htmlRow.Cells.Add(htmlCell);
// add the "Message" HTML cell
htmlCell = new TableCell();
htmlCell.CssClass = "Message_";
htmlCell.Wrap = false;
htmlCell.Text = Server.HtmlEncode(message);
htmlRow.Cells.Add(htmlCell);
// end the table HTML row; add it to the HTML table
LogGrid.Rows.Add(htmlRow);
}
// update <RefreshLink>
RefreshLink.NavigateUrl = String.Format("?AttemptId={0}&PreviousEntryId={1}",
attemptId.GetKey(), maxLogEntryId.GetKey());
}
catch (Exception ex)
{
// an unexpected error occurred -- display a generic message that doesn't include the
// exception message (since that message may include sensitive information), and write
// the exception message to the event log
LogTitle.Visible = false;
LogContents.Visible = false;
ErrorMessage.Visible = true;
ErrorMessage.Controls.Add(new System.Web.UI.LiteralControl(
Server.HtmlEncode("A serious error occurred. Please contact your system administrator. More information has been written to the server event log.")));
LogEvent(System.Diagnostics.EventLogEntryType.Error,
"An exception occurred while accessing the sequencing log for attempt #{0}:\n\n{1}\n\n",
attemptId.GetKey(), ex.ToString());
}
}
protected void UploadPackageButton_OnClick(object sender, EventArgs e)
{
// the user clicked "Upload"...
// do nothing if the user didn't select a file to upload
if (!UploadedPackageFile.HasFile)
{
return;
}
// hide the upload panel and show the message panel; the message panel will hold
// information about the success or failure of the package upload operation
UploadPanel.Visible = false;
MessagePanel.Visible = true;
// attempt to import the uploaded file into PackageStore
try
{
// set <currentUser> to information about the current user; we need the current user's
// UserItemIdentifier
LStoreUserInfo currentUser = GetCurrentUserInfo();
// import the package file; set packageId to the ID of the uploaded
// package; set importLog to a collection of warnings (if any)
// about the import process
PackageItemIdentifier packageId;
ValidationResults importLog;
using (PackageReader packageReader = PackageReader.Create(UploadedPackageFile.FileContent))
{
// Add package, asking to fix anything that can be fixed.
AddPackageResult result = PStore.AddPackage(packageReader, new PackageEnforcement(false, false, false));
packageId = result.PackageId;
importLog = result.Log;
}
// fill in the application-specific columns of the PackageItem table
LearningStoreJob job = LStore.CreateJob();
Dictionary <string, object> properties = new Dictionary <string, object>();
properties[Schema.PackageItem.Owner] = currentUser.Id;
properties[Schema.PackageItem.FileName] = UploadedPackageFile.FileName;
properties[Schema.PackageItem.UploadDateTime] = DateTime.Now;
job.UpdateItem(packageId, properties);
job.Execute();
// retrieve information about the package
job = LStore.CreateJob();
RequestMyTraining(job, packageId);
GetMyTrainingResultsToHtml(job.Execute <DataTable>(), TrainingGrid);
// when the page loads in the browser, copy information about the from the TrainingGrid
// hidden table to the main page using client-side script
UpdateParentPageScript.Visible = true;
// provide user feedback
if (importLog.HasWarnings)
{
// display warnings
WarningIntro.Visible = true;
WarningMessages.Visible = true;
foreach (ValidationResult result in importLog.Results)
{
ScrollingMessagesList.Items.Add(new ListItem(result.Message));
}
}
else
{
// the operation was successful, and there are no messages to display to the user,
// so close the dialog
CloseDialogScript.Visible = true;
}
}
catch (PackageImportException ex)
{
// a package import failure occurred -- display the error message
ErrorIntro.Visible = true;
ErrorMessage.Visible = true;
foreach (ValidationResult result in ex.Log.Results)
{
ErrorMessageScrollingList.Items.Add(new ListItem(result.Message));
}
if (ex.InnerException != null)
{
ErrorMessageScrollingList.Items.Add(new ListItem(
Server.HtmlEncode(ex.InnerException.Message)));
}
}
catch (Exception ex)
{
// an unexpected error occurred -- display a generic message that doesn't include the
// exception message (since that message may include sensitive information), and write
// the exception message to the event log
ErrorIntro.Visible = true;
ErrorMessage.Visible = true;
ErrorMessage.Controls.Add(new System.Web.UI.LiteralControl(
Server.HtmlEncode("A serious error occurred. Please contact your system administrator. More information has been written to the server event log.")));
LogEvent(System.Diagnostics.EventLogEntryType.Error,
"An exception occurred while uploading a package:\n\n{0}\n\n", ex.ToString());
}
}
public IEnumerable <AnswerResult> GetAnswers(AttemptResult attemptResult)
{
List <AnswerResult> result = new List <AnswerResult>();
LearningStoreJob job = LStore.CreateJob();
AttemptItemIdentifier attemptId = new AttemptItemIdentifier(attemptResult.AttemptId);
RequestInteractionResultsByAttempt(job, attemptId);
DataTable dataTable = job.Execute <DataTable>();
foreach (DataRow dataRow in dataTable.AsEnumerable())
{
ActivityAttemptItemIdentifier activityAttemptItemId;
LStoreHelper.CastNonNull(dataRow[Schema.InteractionResultsByAttempt.ActivityAttemptId], out activityAttemptItemId);
long activityAttemptId = activityAttemptItemId.GetKey();
ActivityPackageItemIdentifier activityPackageItemId;
LStoreHelper.CastNonNull(dataRow[Schema.InteractionResultsByAttempt.ActivityPackageId], out activityPackageItemId);
long activityPackageId = activityPackageItemId.GetKey();
String activityTitle;
LStoreHelper.CastNonNull(dataRow[Schema.InteractionResultsByAttempt.ActivityTitle], out activityTitle);
InteractionItemIdentifier interactionItemId;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.InteractionId], out interactionItemId);
long?interactionId = null;
if (interactionItemId != null)
{
interactionId = interactionItemId.GetKey();
}
Microsoft.LearningComponents.CompletionStatus completionStatus;
LStoreHelper.CastNonNull(dataRow[Schema.InteractionResultsByAttempt.CompletionStatus], out completionStatus);
IUDICO.Common.Models.Shared.Statistics.CompletionStatus iudicoCompletionStatus = (IUDICO.Common.Models.Shared.Statistics.CompletionStatus)completionStatus;
Microsoft.LearningComponents.SuccessStatus?successStatus;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.SuccessStatus], out successStatus);
IUDICO.Common.Models.Shared.Statistics.SuccessStatus?iudicoSuccessStatus = (IUDICO.Common.Models.Shared.Statistics.SuccessStatus?)successStatus;
bool?learnerResponseBool = null;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.LearnerResponseBool], out learnerResponseBool);
string learnerResponseString = null;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.LearnerResponseString], out learnerResponseString);
double?learnerResponseNumeric = null;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.LearnerResponseNumeric], out learnerResponseNumeric);
object learnerResponse = null;
if (learnerResponseBool != null)
{
learnerResponse = learnerResponseBool;
}
if (learnerResponseString != null)
{
learnerResponse = learnerResponseString;
}
if (learnerResponseNumeric != null)
{
learnerResponse = learnerResponseNumeric;
}
string correctResponse;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.CorrectResponse], out correctResponse);
Microsoft.LearningComponents.InteractionType?interactionType = null;
LStoreHelper.Cast(dataRow[Schema.InteractionResultsByAttempt.InteractionType], out interactionType);
IUDICO.Common.Models.Shared.Statistics.InteractionType?learnerResponseType = null;
if (interactionType != null)
{
learnerResponseType = (IUDICO.Common.Models.Shared.Statistics.InteractionType)interactionType;
}
float?scaledScore;
LStoreHelper.Cast <float>(dataRow[Schema.InteractionResultsByAttempt.ScaledScore], out scaledScore);
// Create AnswerResult object
AnswerResult answerResult = new AnswerResult(activityAttemptId, activityPackageId, activityTitle, interactionId, iudicoCompletionStatus, iudicoSuccessStatus, attemptResult, learnerResponse, correctResponse, learnerResponseType, scaledScore);
result.Add(answerResult);
}
return(result);
}