/// <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);
}
