Migration Blog

DeserializedBlogPost.cs

public class DeserializedBlogPost
{
    private const string Wp = "http://wordpress.org/export/1.2/";
    private const string ContentUrl = "http://purl.org/rss/1.0/modules/content/";
    private const string Dc = "http://purl.org/dc/elements/1.1/";

    public DeserializedBlogPost(XElement blogElement)
    {
        this.Title = blogElement.Element("title").Value;

        this.URL = blogElement.Element("link").Value;

        this.Slug = blogElement.Element($"{Wp}post_name").Value;

        this.PublicationDate = DateTime.ParseExact(
            blogElement.Element($"{Wp}post_date").Value,
            "yyyy-MM-dd HH:mm:ss",
            CultureInfo.InvariantCulture);

        this.PostId = blogElement.Element($"{Wp}post_id").Value;

        this.Content = blogElement.Element($"{ContentUrl}encoded").Value;

        this.Tags = blogElement.Elements("category")
                               .Where(el => el.Attribute("domain").Value == "post_tag")
                               .Select(el => el.Value);

        this.Categories = blogElement.Elements("category")
                                     .Where(el => el.Attribute("domain").Value == "category")
                                     .Select(el => el.Value);

        this.Author = blogElement.Element($"{Dc}creator").Value;

        this.Permalink = blogElement.Element("guid").Value;
    }

    //Other unimportant class members omitted for brevity
}

FilteringThePosts.cs

private const string Wp = "http://wordpress.org/export/1.2/";

//--Unimportant code snipped for brevity--

private static IEnumerable<DeserializedBlogPost> DeserializeBlogs(XDocument importedXmlData)
{
    var importedBlogposts = importedXmlData.Descendants("item")
        .Where(el =>
               el.Element($"{Wp}post_type").Value == "post" && el.Element($"{Wp}status").Value == "publish");

    return importedBlogposts.Select(el => new DeserializedBlogPost(el));
}

Global.asax.cs

protected void Application_Start(object sender, EventArgs e)
{
      SystemManager.ApplicationStart += (s, args) =>
      {
        var imp = new BlogsImporter(blogsProvider: "NvsBlogProvider");
      };
}

ImportBlogs.cs

private void ImportBlogs()
{
    var nvsBlog = this.BlogsManager.GetBlog(new Guid("{dd71315a-1eae-649b-900d-ff0000b46a22}"));

    if (nvsBlog.BlogPosts().Any())
    {
        return;
    }

    foreach (var deserializedBlogPost in this.DeserializedBlogs)
    {
        var importedBlog = this.BlogsManager.CreateBlogPost();
        importedBlog.Parent = nvsBlog;
        importedBlog.Title = deserializedBlogPost.Title;
        importedBlog.UrlName = deserializedBlogPost.Slug;
        importedBlog.SetValue("MigrationId", deserializedBlogPost.PostId);
        importedBlog.Content = deserializedBlogPost.Content;
        importedBlog.DateCreated = importedBlog.PublicationDate = deserializedBlogPost.PublicationDate;
        BlogsImporter.MapAuthor(importedBlog, deserializedBlogPost);
        BlogsImporter.ImportTags(importedBlog, deserializedBlogPost);
        BlogsImporter.ImportCategories(importedBlog, deserializedBlogPost);

        this.BlogsManager.RecompileAndValidateUrls(importedBlog);
        this.BlogsManager.Lifecycle.PublishWithSpecificDate(importedBlog, deserializedBlogPost.PublicationDate);
    }

    this.BlogsManager.SaveChanges();
}

LoadFile.cs

XDocument.Load(HttpContext.Current.Server.MapPath("~/Import/wordpress.xml"));

Mappings.cs

private static void ImportCategories(BlogPost importedBlog, DeserializedBlogPost deserializedBlogPost)
{
    foreach (var category in deserializedBlogPost.Categories)
    {
        var taxonomy = TaxonomyService.GetHierarchicalTaxon(category);

        if (taxonomy != null)
        {
            importedBlog.Organizer.AddTaxa("Category", taxonomy.Id);
        }
    }
}

private static void ImportTags(BlogPost importedBlog, DeserializedBlogPost deserializedBlogPost)
{
    foreach (var tag in deserializedBlogPost.Tags)
    {
        var taxonomy = TaxonomyService.GetFlatTaxon(tag);

        if (taxonomy != null)
        {
            importedBlog.Organizer.AddTaxa("Tags", taxonomy.Id);
        }
    }
}