/// <summary>Resets the IsLatest value for all files to false.</summary>
public void ResetIsLatestFiles(int[] excludes, int currentUser)
{
using (new AllowUnsafeUpdates(web))
{
foreach (SPFile file in assignmentFolder.Folder.Files)
{
bool isLatestValue = false;
foreach (int id in excludes)
{
if (id == file.Item.ID)
{
isLatestValue = true;
break;
}
}
object currentValue = file.Item[DropBox.ColumnIsLatest];
if (currentValue == null || (bool)currentValue != isLatestValue)
{
DropBoxManager.UnlockFile(file, currentUser);
file.Item[DropBox.ColumnIsLatest] = isLatestValue;
file.Item.Update();
}
}
}
}
void ExtractAssignmentsFromSharePoint(AssignmentProperties assignmentProperties, string assignmentFolderPath)
{
DropBoxManager manager = new DropBoxManager(assignmentProperties);
Dictionary <string, List <SPFile> > files = manager.AllFiles();
foreach (string learner in files.Keys)
{
string subFolderPath = Path.Combine(assignmentFolderPath, learner);
Directory.CreateDirectory(subFolderPath);
foreach (SPFile file in files[learner])
{
object nameValue = file.Item[SPBuiltInFieldId.FileLeafRef];
if (nameValue != null)
{
string name = nameValue.ToString();
if (name.Length != 0)
{
byte[] data = file.OpenBinary();
using (FileStream fileStream = new FileStream(Path.Combine(subFolderPath, name), FileMode.CreateNew))
{
using (BinaryWriter binaryWriter = new BinaryWriter(fileStream))
{
binaryWriter.Write(data, 0, (int)file.Length);
}
}
}
}
}
}
}
/// <summary>Uploads files and submits the assignment.</summary>
/// <param name="files">The files to upload.</param>
/// <param name="existingFilesToKeep">Existing files to keep.</param>
public void UploadFilesAndSubmit(AssignmentUpload[] files, int[] existingFilesToKeep)
{
DropBoxManager manager = new DropBoxManager(Assignment);
manager.UploadFiles(files, existingFilesToKeep);
Submit();
}
void UpdateCachedDropBox()
{
StringBuilder errors = new StringBuilder();
dropBoxManager = new DropBoxManager(properties);
foreach (DropBoxUpdate update in cachedDropBoxUpdates)
{
try
{
UpdateDropBoxPermissionsNow(update.State, update.User);
}
catch (Exception e)
{
properties.Store.LogException(e);
errors.AppendFormat(SlkCulture.GetResources().ErrorSavingDropBoxPermissions, update.State, update.User.LoginName);
}
}
if (errors.Length > 0)
{
throw new SafeToDisplayException(errors.ToString());
}
dropBoxManager = null;
}
/// <summary>Submits the assignment.</summary>
public void Submit()
{
CheckUserIsLearner();
// Check the status
switch (Status)
{
case LearnerAssignmentState.NotStarted:
if (Assignment.IsELearning)
{
throw InvalidTransitionException(LearnerAssignmentState.NotStarted, LearnerAssignmentState.Completed);
}
break;
case LearnerAssignmentState.Active:
break;
case LearnerAssignmentState.Completed:
// Need to transition to Final if auto return assignment
if (Assignment.AutoReturn != true)
{
return;
}
else
{
break;
}
case LearnerAssignmentState.Final:
// Already complete so leave
return;
default:
// New status added
break;
}
CompleteAssignment(null, null);
if (Assignment.IsNonELearning)
{
DropBoxManager dropBoxMgr = new DropBoxManager(Assignment);
dropBoxMgr.ApplySubmittedPermissions();
}
if (Assignment.EmailChanges)
{
Assignment.SendSubmitEmail(LearnerName);
}
}
/// <summary>Deletes the assignment.</summary>
public void Delete(SPWeb web)
{
Store.DeleteAssignment(Id);
if (EmailChanges)
{
using (AssignmentEmailer emailer = new AssignmentEmailer(this, Store.Settings.EmailSettings, web))
{
emailer.SendCancelEmail(Learners);
}
}
//Delete corresponding assignment folder from the drop box if exists
if (IsNonELearning)
{
DropBoxManager dropBoxManager = new DropBoxManager(this);
dropBoxManager.DeleteAssignmentFolder();
}
}
/// <summary>The last submitted files of a user.</summary>
/// <param name="user">The user to get the files for.</param>
/// <param name="assignmentKey">The key of the assignment.</param>
/// <param name="forceUnlock">Force unlocking of all the files.</param>
/// <param name="currentUser">The current user id.</param>
/// <returns>The last submitted files.</returns>
public AssignmentFile[] LastSubmittedFiles(SlkUser user, long assignmentKey, bool forceUnlock, int currentUser)
{
if (user == null)
{
throw new ArgumentNullException();
}
string queryXml = @"<Where>
<And>
<Eq><FieldRef Name='{0}'/><Value Type='Text'>{1}</Value></Eq>
<Eq><FieldRef Name='{2}'/><Value Type='Text'>{3}</Value></Eq>
</And>
</Where>";
queryXml = string.Format(CultureInfo.InvariantCulture, queryXml, ColumnAssignmentId, assignmentKey, ColumnLearnerId, user.Key);
SPQuery query = new SPQuery();
query.ViewAttributes = "Scope=\"Recursive\"";
query.Query = queryXml;
SPListItemCollection items = DropBoxList.GetItems(query);
List <AssignmentFile> files = new List <AssignmentFile>();
foreach (SPListItem item in items)
{
if (item[ColumnIsLatest] != null)
{
if ((bool)item[ColumnIsLatest])
{
SPFile file = item.File;
if (forceUnlock)
{
DropBoxManager.UnlockFile(file, currentUser);
}
files.Add(new AssignmentFile(item.ID, file.Name, file.ServerRelativeUrl, (string)file.Item["PermMask"]));
}
}
}
return(files.ToArray());
}
void SaveNewAssignment(SPWeb web, SlkRole slkRole)
{
// Security checks: If assigning as an instructor, fails if user isn't an instructor on
// the web (implemented by calling EnsureInstructor). Fails if the user doesn't have access to the package/file
if (web == null)
{
throw new ArgumentNullException("web");
}
if (PackageFormat == null && Location == null)
{
throw new InvalidOperationException(SlkCulture.GetResources().InvalidNewAssignment);
}
SPSiteGuid = web.Site.ID;
SPWebGuid = web.ID;
VerifyRole(web, slkRole);
Id = Store.CreateAssignment(this);
if (isSelfAssigned == false)
{
//Update the MRU list
Store.AddToUserWebList(web);
}
if (IsNonELearning)
{
DropBoxManager dropBoxMgr = new DropBoxManager(this);
Microsoft.SharePoint.Utilities.SPUtility.ValidateFormDigest();
dropBoxMgr.CreateAssignmentFolder();
}
if (EmailChanges)
{
using (AssignmentEmailer emailer = new AssignmentEmailer(this, Store.Settings.EmailSettings, web))
{
emailer.SendNewEmail(Learners);
}
}
}
void UpdateAssignment(SPWeb web)
{
AssignmentProperties oldProperties = Store.LoadAssignmentProperties(Id, SlkRole.Instructor);
CopyInvariantProperties(oldProperties);
bool corePropertiesChanged = false;
if (Title != oldProperties.Title || StartDate != oldProperties.StartDate || DueDate != oldProperties.DueDate || PointsPossible != oldProperties.PointsPossible ||
Description != oldProperties.Description || AutoReturn != oldProperties.AutoReturn || ShowAnswersToLearners != oldProperties.ShowAnswersToLearners ||
EmailChanges != oldProperties.EmailChanges)
{
corePropertiesChanged = true;
}
SlkUserCollectionChanges instructorChanges = new SlkUserCollectionChanges(oldProperties.Instructors, Instructors);
SlkUserCollectionChanges learnerChanges = new SlkUserCollectionChanges(oldProperties.Learners, Learners);
if (corePropertiesChanged || instructorChanges.HasChanges || learnerChanges.HasChanges)
{
Store.UpdateAssignment(this, corePropertiesChanged, instructorChanges, learnerChanges);
if (IsNonELearning)
{
// Update the assignment folder in the Drop Box
DropBoxManager dropBoxMgr = new DropBoxManager(this);
dropBoxMgr.UpdateAssignment(oldProperties);
}
if (EmailChanges)
{
using (AssignmentEmailer emailer = new AssignmentEmailer(this, Store.Settings.EmailSettings, web))
{
emailer.SendNewEmail(learnerChanges.Additions);
emailer.SendCancelEmail(learnerChanges.Removals);
}
}
}
}
/// <summary>Updates the drop box permissions.</summary>
/// <param name="state">The state the assignment is moving to.</param>
/// <param name="user">The user.</param>
void UpdateDropBoxPermissionsNow(LearnerAssignmentState state, SPUser user)
{
// If user is null, it's a deleted user so no need to update.
if (user != null)
{
bool createdManager = false;
if (dropBoxManager == null)
{
dropBoxManager = new DropBoxManager(properties);
createdManager = true;
}
switch (state)
{
case LearnerAssignmentState.Active:
// Reactivated
dropBoxManager.ApplyReactivateAssignmentPermission(user);
break;
case LearnerAssignmentState.Completed:
// Collected
dropBoxManager.ApplyCollectAssignmentPermissions(user);
break;
case LearnerAssignmentState.Final:
// Return
dropBoxManager.ApplyReturnAssignmentPermission(user);
break;
}
if (createdManager)
{
dropBoxManager = null;
}
}
}
