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Note on Community Server to WordPress migration

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This post has has the full scoop on the process of migrating blogs from Community Server to WordPress, except for this bit: “ultimately, I just wrote a simple regular expression to reformat all the categories so that their names were in the ID attribute.”  Instead of regex, I wrote a a C# script using LINQ to XML:

const string source = @"D:export.xml";
           string source = @"D:export.xml";
            var doc = XDocument.Load(source);
            var categories = new Dictionary();
            foreach (var cat in doc.Elements().First().Elements().Descendants().Where(cat => cat.Name.LocalName == "tag"))
            {
                if (cat.Attribute("id") != null)
                {
                    categories.Add(Convert.ToInt32(cat.Attribute("id").Value), cat.Elements().First().Value);
                }
                else
                {
                    int refId;
                    if (int.TryParse(cat.Attribute("ref").Value, out refId)) // in case it was already run
                    {
                        cat.Attribute("ref").Value = categories[refId];
                    }
                }
            }
            doc.Save(source);

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