/// <summary>
/// Gets a list of archive months - id / year / month / count
/// Used by archive user control to display the tree-like structure
/// </summary>
/// <returns>List of ArchiveMonth objects</returns>
public List<ArchiveMonth> GetArchiveMonths()
{
List<ArchiveMonth> months = new List<ArchiveMonth>();
XElement root = null;
try
{
root = XElement.Load(this._path);
}
catch (Exception ex)
{
// missing file
// invalid XML in file
Logger.Log(NO_FILE_ERROR, ex);
throw new ApplicationException(NO_FILE_ERROR, ex);
}
// No Archive month
foreach (XElement monthElem in root.Elements("ArchiveMonth"))
{
// missing attribute
ArchiveMonth month = new ArchiveMonth();
try
{
// missing attribute
month.ID = int.Parse(monthElem.Attribute("ID").Value);
month.Month = int.Parse(monthElem.Attribute("Month").Value);
month.Year = int.Parse(monthElem.Attribute("Year").Value);
month.Count = int.Parse(monthElem.Attribute("Count").Value);
}
catch (Exception ex)
{
Logger.Log(FORMAT_ERROR, ex);
continue;
}
months.Add(month);
}
return months;
}
/// <summary>
/// Create a new node in Archive file for a new month
/// Contains ID, month, year, count
/// Called when a new post is published on a new month
/// </summary>
/// <param name="month">
/// The Archive Month
/// </param>
public void Create(ArchiveMonth month)
{
XElement root = null;
try
{
// file not found
// invalid XML
root = XElement.Load(this._path);
}
catch (Exception ex)
{
Logger.Log(NO_FILE_ERROR, ex);
throw new ApplicationException(NO_FILE_ERROR, ex);
}
// check if month exists, Do not create, if exists
var qry = from elem in root.Elements("ArchiveMonth") where (int)elem.Attribute("ID") == month.ID select elem;
if (qry.Count<XElement>() > 0)
{
Logger.Log(DUP_MONTH_ERROR);
throw new ApplicationException(DUP_MONTH_ERROR);
}
XElement monthElem = new XElement(
"ArchiveMonth",
new XAttribute("ID", month.ID),
new XAttribute("Year", month.Year),
new XAttribute("Month", month.Month),
new XAttribute("Count", month.Count));
// first element (latest post in new month)
// insert somewhere in the past where no post for a month
bool lastNode = true;
foreach (XElement refElem in root.Elements("ArchiveMonth"))
{
int refArchID = (int)refElem.Attribute("ID");
if (month.ID > refArchID)
{
refElem.AddBeforeSelf(monthElem);
lastNode = false;
break;
}
}
// only element
// last element in the list
if (lastNode)
{
root.Add(monthElem);
}
root.Save(this._path);
}
