/// <summary>Uploads files to the learner's drop box.</summary>
/// <param name="files">The files to upload.</param>
/// <param name="existingFilesToKeep">Existing files to keep.</param>
public void UploadFiles(AssignmentUpload[] files, int[] existingFilesToKeep)
{
SPUser currentUser = CurrentUser;
SPSecurity.RunWithElevatedPrivileges(delegate
{
using (SPSite spSite = new SPSite(assignmentProperties.SPSiteGuid))
{
spSite.CatchAccessDeniedException = false;
using (SPWeb spWeb = spSite.OpenWeb(assignmentProperties.SPWebGuid))
{
DropBox dropBox = new DropBox(store, spWeb);
AssignmentFolder assignmentFolder = dropBox.GetOrCreateAssignmentFolder(assignmentProperties);
assignmentFolder.ApplyPermission(currentUser, SPRoleType.Reader);
AssignmentFolder learnerSubFolder = assignmentFolder.FindLearnerFolder(currentUser);
if (learnerSubFolder == null)
{
learnerSubFolder = assignmentFolder.CreateLearnerAssignmentFolder(currentUser);
}
else
{
learnerSubFolder.ResetIsLatestFiles(existingFilesToKeep, currentUser.ID);
}
CheckExtensions(spSite, files);
using (new AllowUnsafeUpdates(spWeb))
{
SlkUser currentSlkUser = new SlkUser(currentUser);
foreach (AssignmentUpload upload in files)
{
learnerSubFolder.SaveFile(upload.Name, upload.Stream, currentSlkUser);
}
}
ApplySubmittedPermissions(spWeb);
}
}
});
}
private AssignmentFile SaveFile(SPFile file)
{
AssignmentFile assignmentFile = null;
using (SPSite destinationSite = new SPSite(assignmentProperties.SPSiteGuid))
{
destinationSite.CatchAccessDeniedException = false;
using (SPWeb destinationWeb = destinationSite.OpenWeb(assignmentProperties.SPWebGuid))
{
using (new AllowUnsafeUpdates(destinationWeb))
{
// Temporarily turn off property promotion. Possible cause for exceptions saving docs. I don't actually know
// if settings this will disable it as without an update it's not persisted and we don't want to persist the
// setting, just turn it off for this addition. It may even work asynchronously.
destinationWeb.ParserEnabled = false;
SPUser learner = CurrentUser;
DropBox dropBox = new DropBox(store, destinationWeb);
AssignmentFolder assignmentFolder = dropBox.GetAssignmentFolder(assignmentProperties);
AssignmentFolder learnerSubFolder = null;
if (assignmentFolder == null)
{
assignmentFolder = dropBox.CreateAssignmentFolder(assignmentProperties);
}
// ApplyAssignmentPermission creates the learner folder if required
ApplyAssignmentPermission(learner, SPRoleType.Contributor, SPRoleType.Reader, true);
learnerSubFolder = assignmentFolder.FindLearnerFolder(learner);
using (Stream stream = file.OpenBinaryStream())
{
assignmentFile = learnerSubFolder.SaveFile(file.Name, stream, new SlkUser(learner));
}
}
}
}
return assignmentFile;
}
