/// <summary>
/// Deletes a specified document version. Called when the "Delete version" button is pressed.
/// Expects the "CreateExampleObjects" and at least the "EditDocument" method to be run first.
/// </summary>
private bool DeleteVersion()
{
TreeProvider tree = new TreeProvider(CMSContext.CurrentUser);
// Prepare parameters
string siteName = CMSContext.CurrentSiteName;
string aliasPath = "/API-Example";
string culture = "en-us";
bool combineWithDefaultCulture = false;
string classNames = TreeProvider.ALL_CLASSNAMES;
string where = null;
string orderBy = null;
int maxRelativeLevel = -1;
bool selectOnlyPublished = false;
string columns = null;
// Get the document
TreeNode node = DocumentHelper.GetDocument(siteName, aliasPath, culture, combineWithDefaultCulture, classNames, where, orderBy, maxRelativeLevel, selectOnlyPublished, columns, tree);
if (node != null)
{
// Prepare the WHERE condition for the latest document version
where = "DocumentID = " + node.DocumentID;
orderBy = "ModifiedWhen DESC";
int topN = 1;
// Get the version ID
DataSet versionHistory = VersionHistoryInfoProvider.GetVersionHistories(where, orderBy, topN, columns);
if (!DataHelper.DataSourceIsEmpty(versionHistory))
{
// Create the Version history info object
VersionHistoryInfo version = new VersionHistoryInfo(versionHistory.Tables[0].Rows[0]);
VersionManager versionManager = VersionManager.GetInstance(tree);
// Delete the version
versionManager.DestroyDocumentVersion(version.VersionHistoryID);
return(true);
}
else
{
apiDeleteVersion.ErrorMessage = "The document's version history is empty.";
}
}
return(false);
}
//Reverting to published version if i am editing a published document and then go for edit it.
//But i have not changed any thing and click on cancel button.
//Document should shown as published again
//It was showing as draft because its creating a new version.So added code here for showing that document as published.
public static bool RollbackToPreviousVersion(int NodeID)
{
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);
// Prepare parameters
string siteName = SiteContext.CurrentSiteName;
string culture = "en-us";
string where = null;
string orderBy = null;
string columns = null;
// Get the document
TreeNode node = DocumentHelper.GetDocument(NodeID, culture, tree);
if (node != null)
{
// Prepare the WHERE condition for the oldest document version
where = "DocumentID = " + node.DocumentID;
orderBy = "ModifiedWhen DESC";
int topN = 2;
// Get the version ID
DataSet versionHistory = VersionHistoryInfoProvider.GetVersionHistories(where, orderBy, topN, columns);
if (!DataHelper.DataSourceIsEmpty(versionHistory) && node.IsPublished == true)
{
// Create the Version history info object
//get the details of previous version of this document
VersionHistoryInfo version = new VersionHistoryInfo(versionHistory.Tables[0].Rows[1]);
VersionManager versionManager = VersionManager.GetInstance(tree);
//get the workflow stepid of previous version of this document
int WorkFlowStepID = Convert.ToInt32(version.VersionWorkflowStepID);
//move that document to previous version workflow state
MoveToWorkflowStep(WorkFlowStepID, tree, node);
}
else if (!DataHelper.DataSourceIsEmpty(versionHistory) && versionHistory.Tables[0].Rows.Count > 1)
{
// Create the Version history info object
//get the details of previous version of this document
VersionHistoryInfo version = new VersionHistoryInfo(versionHistory.Tables[0].Rows[1]);
VersionManager versionManager = VersionManager.GetInstance(tree);
//get the workflow stepid of previous version of this document
int WorkFlowStepID = Convert.ToInt32(version.VersionWorkflowStepID);
//move that document to previous version workflow state
MoveToWorkflowStep(WorkFlowStepID, tree, node);
}
}
return(true);
}
private void DestroyDocumentHistory(VersionHistoryInfo versionHistoryInfo, VersionManager versionManager)
{
try
{
if (IsAuthorizedPerDocument(versionHistoryInfo, "Destroy", mCurrentUser))
{
versionManager.DestroyDocumentHistory(versionHistoryInfo.DocumentID);
ShowConfirmation(GetString("recyclebin.destroyok"));
}
else
{
ShowError(String.Format(ResHelper.GetString("recyclebin.destructionfailedpermissions", mCurrentCulture), HTMLHelper.HTMLEncode(versionHistoryInfo.DocumentNamePath)));
}
}
catch (Exception ex)
{
LogAndShowError("Content", "DESTROYDOC", ex);
}
}
private void RestoreDocumentVersion(VersionHistoryInfo versionHistoryInfo, VersionManager versionManager)
{
try
{
if (IsAuthorizedPerDocument(versionHistoryInfo, "Create", mCurrentUser))
{
versionManager.RestoreDocument(versionHistoryInfo.VersionHistoryID);
ShowConfirmation(GetString("Recyclebin.RestorationOK"));
}
else
{
ShowError(String.Format(ResHelper.GetString("Recyclebin.RestorationFailedPermissions", mCurrentCulture), HTMLHelper.HTMLEncode(versionHistoryInfo.DocumentNamePath)));
}
}
catch (Exception ex)
{
LogAndShowError("Content", "RESTOREDOC", ex);
}
}
/// <summary>
/// Restores the document from the recycle bin. Called when the "Restore document" button is pressed.
/// Expects the "CreateDocumentStructure" and "MoveDocumentToRecycleBin" methods to be run first.
/// </summary>
private bool RestoreFromRecycleBin()
{
// Prepare the where condition
string where = "VersionNodeAliasPath LIKE N'/API-Example/Document-1'";
// Get the recycled document
DataSet recycleBin = VersionHistoryInfoProvider.GetRecycleBin(CMSContext.CurrentSiteID, where, null, 0, "VersionHistoryID");
if (!DataHelper.DataSourceIsEmpty(recycleBin))
{
// Create a new version history info object from the data row
VersionHistoryInfo version = new VersionHistoryInfo(recycleBin.Tables[0].Rows[0]);
// Create a new version manager instance and restore the document
VersionManager manager = new VersionManager(new TreeProvider(CMSContext.CurrentUser));
manager.RestoreDocument(version.VersionHistoryID);
return(true);
}
return(false);
}
/// <summary>
/// Check user permissions for document.
/// </summary>
/// <param name="versionHistoryInfo">Document version history info</param>
/// <param name="permission">Permissions</param>
/// <param name="user">User</param>
/// <returns>TreeNode if authorized, null otherwise</returns>
private bool IsAuthorizedPerDocument(VersionHistoryInfo versionHistoryInfo, string permission, CurrentUserInfo user)
{
// Check global permission
var userHasGlobalPerm = user.IsAuthorizedPerResource("CMS.Content", permission);
// Get the values form deleted node
var className = new DocumentClassNameRetriever(versionHistoryInfo.Data, true).Retrieve();
var additionalPermission = false;
if (permission.Equals("create", StringComparison.InvariantCultureIgnoreCase))
{
additionalPermission = user.IsAuthorizedPerClassName(className, "CreateSpecific");
}
// Check permissions
if (userHasGlobalPerm || user.IsAuthorizedPerClassName(className, permission) || additionalPermission)
{
return(true);
}
return(false);
}
/// <summary>
/// Restores the document from the recycle bin. Called when the "Restore document" button is pressed.
/// Expects the "CreateDocumentStructure" and "MoveDocumentToRecycleBin" methods to be run first.
/// </summary>
private bool RestoreFromRecycleBin()
{
// Prepare the where condition
string where = "VersionNodeAliasPath LIKE N'/API-Example/Document-1'";
// Get the recycled document
DataSet recycleBin = VersionHistoryInfoProvider.GetRecycleBin(CMSContext.CurrentSiteID, where, null, 0, "VersionHistoryID");
if (!DataHelper.DataSourceIsEmpty(recycleBin))
{
// Create a new version history info object from the data row
VersionHistoryInfo version = new VersionHistoryInfo(recycleBin.Tables[0].Rows[0]);
// Create a new version manager instance and restore the document
VersionManager manager = VersionManager.GetInstance(new TreeProvider(CMSContext.CurrentUser));
manager.RestoreDocument(version.VersionHistoryID);
return true;
}
return false;
}
/// <summary>
/// Rolls the document back to a specified document version. Called when the "Rollback version" button is pressed.
/// Expects the "CreateExampleObjects" and at least the "EditDocument" method to be run first.
/// </summary>
private bool RollbackVersion()
{
TreeProvider tree = new TreeProvider(MembershipContext.AuthenticatedUser);
// Prepare parameters
string siteName = SiteContext.CurrentSiteName;
string aliasPath = "/API-Example";
string culture = "en-us";
bool combineWithDefaultCulture = false;
string classNames = TreeProvider.ALL_CLASSNAMES;
string where = null;
string orderBy = null;
int maxRelativeLevel = -1;
bool selectOnlyPublished = false;
string columns = null;
// Get the document
TreeNode node = DocumentHelper.GetDocument(siteName, aliasPath, culture, combineWithDefaultCulture, classNames, where, orderBy, maxRelativeLevel, selectOnlyPublished, columns, tree);
if (node != null)
{
// Prepare the WHERE condition for the oldest document version
where = "DocumentID = " + node.DocumentID;
orderBy = "ModifiedWhen ASC";
int topN = 1;
// Get the version ID
DataSet versionHistory = VersionHistoryInfoProvider.GetVersionHistories(where, orderBy, topN, columns);
if (!DataHelper.DataSourceIsEmpty(versionHistory))
{
// Create the Version history info object
VersionHistoryInfo version = new VersionHistoryInfo(versionHistory.Tables[0].Rows[0]);
VersionManager versionManager = VersionManager.GetInstance(tree);
// Roll back version
versionManager.RollbackVersion(version.VersionHistoryID);
return true;
}
else
{
apiRollbackVersion.ErrorMessage = "The page's version history is empty.";
}
}
return false;
}
