public ActionResult Index(string userCode)
{
var rootNode = new Code();
rootNode.id = Guid.NewGuid();
rootNode.userCode = userCode;
rootNode.version = 0;
rootNode.CreateDate = DateTime.Now;
rootNode.latest = false;
context.Codes.Add(rootNode);
var editNode = CreateEditNode(rootNode.id, userCode, rootNode, rootNode: true);
Save();
return RedirectToAction("Edit", "Home", new { parentId = editNode.parentId, version = editNode.version });
}
private Code GetLatestCode(Code currentCodeInView)
{
return context.Codes.Single(c => c.parentId == currentCodeInView.parentId && c.latest);
}
private int GetLatestVersion(Code currentCodeInView)
{
bool isParentCode = currentCodeInView.parentId == null;
if (isParentCode)
return 1;
int newVersion = GetLatestCode(currentCodeInView).version + 1;
return newVersion;
}
private Code CreateEditNode(Guid parentId, string userCode, Code currentCodeInView, bool rootNode = false)
{
var editNode = new Code();
editNode.id = Guid.NewGuid();
editNode.userCode = userCode;
if (!rootNode)
{
var latestCode = GetLatestCode(currentCodeInView);
latestCode.latest = false;
}
editNode.version = GetLatestVersion(currentCodeInView);
editNode.CreateDate = DateTime.Now;
editNode.parentId = parentId;
editNode.latest = true;
context.Codes.Add(editNode);
return editNode;
}