/**
* Import Comments
*
* Comments aren't as involved as Posts, so the loop to import can be self-contained. This function
* imports the comments associated with the given post.
*
* The Wordpress export doesn't distinguish between spam comments and comments that simply haven't yet
* been approved, so we can't explicitly mark them as spam in Kentico. We can, though, retain Wordpress'
* behavior and just not approve them, thus retaining the same look on the Kentico blog as we had in WP.
*
* Wordpress also tracks ping/trackbacks differently than Kentico. Kentico just keeps a simple boolean value
* for "IsTrackBack" and doesn't appear to distinguish between trackback and pingback, while Wordpress uses a
* string value with null, Comment, Pingback, and Trackback as potential values
*
* @param entity context
* @param CMS_Document postDoc
*/
protected static void ImportComments(kenticofreeEntities context, CMS_Document postDoc)
{
// Get the comments from the XML
var comments = (from c in wpxml.Descendants("item").Where(x => x.Element(wpns + "post_id").Value == postDoc.DocumentForeignKeyValue.ToString()).Descendants(wpns + "comment")
select new Blog_Comment {
CommentID = Int32.Parse(c.Element(wpns + "comment_id").Value),
CommentUserName = c.Element(wpns + "comment_author").Value,
CommentEmail = c.Element(wpns + "comment_author_email").Value,
CommentUrl = c.Element(wpns + "comment_author_url").Value,
CommentApproved = (c.Element(wpns + "comment_approved").Value != "0"), // Convert "0"/"1" to false/true
CommentDate = DateTime.Parse(c.Element(wpns + "comment_date").Value),
CommentText = c.Element(wpns + "comment_content").Value,
CommentIsTrackBack = (!String.IsNullOrEmpty(c.Element(wpns + "comment_type").Value) && c.Element(wpns + "comment_type").Value != "Comment"), // if comment_type has a value (not NullOrEmpty), AND that value is not "Comment", then it's a ping/trackback; otherwise it's just a comment
CommentPostDocumentID = postDoc.DocumentID
}
);
// Insert them into the database
foreach (Blog_Comment comment in comments)
{
context.Blog_Comment.AddObject(comment);
}
context.SaveChanges();
}
/**
* Link categories and tags to a post.
*
* This is combined into one function, because the Wordpress XML uses the same "category" tag
* for both categories and tags for a post, and just uses the "domain" attribute to distinguish
* between them.
*
* @param entity context
* @param CMS_Document postDoc
* @param CONTENT_BlogPost post
*/
protected static void LinkCategoriesAndTags(kenticofreeEntities context, CMS_Document postDoc, CONTENT_BlogPost post)
{
var xml = (from c in wpxml.Descendants("item")
where Int32.Parse(c.Element(wpns + "post_id").Value) == post.BlogPostID
select c
).Single();
var categories = (from c in xml.Descendants("category")
select new {
Domain = c.Attribute("domain").Value,
Nicename = c.Attribute("nicename").Value
}
);
foreach (var cat in categories)
{
if (cat.Domain == "post_tag")
{
CMS_TagGroup tg = GetTagGroup(context);
CMS_Tag tag = (from t in context.CMS_Tag
where t.TagName == cat.Nicename && t.TagGroupID == tg.TagGroupID
select t
).SingleOrDefault();
postDoc.CMS_Tag.Add(tag);
if (String.IsNullOrEmpty(postDoc.DocumentTags))
{
postDoc.DocumentTags = tag.TagName;
}
else
{
postDoc.DocumentTags = postDoc.DocumentTags + ", " + tag.TagName;
}
tag.TagCount++;
}
else if (cat.Domain == "category")
{
CMS_Category category = (from c in context.CMS_Category
where c.CategoryName == cat.Nicename
select c
).SingleOrDefault();
postDoc.CMS_Category.Add(category);
category.CategoryCount++;
}
}
context.SaveChanges();
}
/**
* Add a document based on the given treeNode and related item
*
* @param entity context
* @param CMS_Tree treeNode
* @param int itemId
* @param bool hasTags
* @return CMS_Document
*/
protected static CMS_Document AddDocument(kenticofreeEntities context, CMS_Tree treeNode, int itemId, int tagGroupId = 0)
{
// Create the document and add it into the database
CMS_Document doc = new CMS_Document()
{
DocumentName = treeNode.NodeName,
DocumentNamePath = treeNode.NodeAliasPath,
DocumentForeignKeyValue = itemId,
DocumentCulture = "en-US",
DocumentShowInSiteMap = true,
DocumentMenuItemHideInNavigation = false,
DocumentUseNamePathForUrlPath = false,
DocumentStylesheetID = -1,
DocumentNodeID = treeNode.NodeID,
DocumentGUID = Guid.NewGuid(),
DocumentWorkflowCycleGUID = Guid.NewGuid(),
DocumentCreatedByUserID = treeNode.NodeOwner,
DocumentCreatedWhen = DateTime.Now,
DocumentModifiedWhen = DateTime.Now,
DocumentModifiedByUserID = treeNode.NodeOwner,
DocumentUrlPath = "",
DocumentContent = "",
DocumentIsArchived = false
};
// Include the TagGroupID that the documents belong to. Used largely for blog entries.
if (tagGroupId > 0)
{
doc.DocumentTagGroupID = tagGroupId;
}
context.CMS_Document.AddObject(doc);
context.SaveChanges();
return(doc);
}
/**
* Import Post
*
* Imports a given post into the database, creating the necessary dependencies,
* including BlogMonth (if it doesn't already exist), TreeNode, and Document.
* Returns the newly-created document that represents the post.
*
* @param entities context
* @param CMS_Tree blog
* @param CONTENT_BlogPost post
* @return CMS_Document
*/
protected static CMS_Document ImportPost(kenticofreeEntities context, CMS_Tree blog, CONTENT_BlogPost post)
{
Regex forbidden = new Regex(forbiddenChars);
Regex consolidateDashes = new Regex("[-]{2}");
/* We want to preserve the IDs of the Posts for linking, but EF won't let us turn on IDENTITY_INSERT
* with its available methods (ExecuteStoreCommand and SaveChanges are different connections, it seems).
* So we have to do it the old fashioned way.
*/
object[] values = new object[] {
post.BlogPostID.ToString(),
post.BlogPostTitle,
post.BlogPostDate.Date.ToString("yyyy-MM-dd HH:mm:ss"),
post.BlogPostSummary,
post.BlogPostAllowComments,
post.BlogPostBody,
post.BlogLogActivity
};
/* We'll use MERGE here, so that we can handle existing entries.
* The "xmlTrumpsDb" config switch will allow a choice between nuking what's in the DB
* or preserving it.
*/
string cmd = "SET IDENTITY_INSERT CONTENT_BlogPost ON; ";
cmd += "MERGE CONTENT_BlogPost ";
cmd += "USING (VALUES ({0},{1},{2},{3},{4},{5},{6})) as temp(BlogPostID, BlogPostTitle, BlogPostDate, BlogPostSummary, BlogPostAllowComments, BlogPostBody, BlogLogActivity) ";
cmd += "ON CONTENT_BlogPost.BlogPostID = temp.BlogPostID ";
// To nuke or not to nuke, that is the question...
if (config.Get("xmlTrumpsDb") == "true")
{
cmd += "WHEN MATCHED THEN ";
cmd += "UPDATE SET CONTENT_BlogPost.BlogPostTitle = temp.BlogPostTitle, CONTENT_BlogPost.BlogPostDate = temp.BlogPostDate, CONTENT_BlogPost.BlogPostSummary = temp.BlogPostSummary, CONTENT_BlogPost.BlogPostAllowComments = temp.BlogPostAllowComments, CONTENT_BlogPost.BlogPostBody = temp.BlogPostBody, CONTENT_BlogPost.BlogLogActivity = temp.BlogLogActivity ";
}
cmd += "WHEN NOT MATCHED THEN ";
cmd += "INSERT (BlogPostId, BlogPostTitle, BlogPostDate, BlogPostSummary, BlogPostAllowComments, BlogPostBody, BlogLogActivity) VALUES ({0},{1},{2},{3},{4},{5},{6}); ";
cmd += "SET IDENTITY_INSERT CONTENT_BlogPost OFF;";
context.ExecuteStoreCommand(cmd, values);
// See if there's a BlogMonth entry for the month this post is for
CMS_Tree month = GetBlogMonth(context, post, blog);
CMS_Class blogClass = context.CMS_Class.Where(x => x.ClassName == "CMS.BlogPost").First();
CMS_Tree treeNode = (from t in context.CMS_Tree
join d in context.CMS_Document on t.NodeID equals d.DocumentNodeID
where d.DocumentForeignKeyValue == post.BlogPostID && t.NodeClassID == 3423
select t).FirstOrDefault();
// Add a new node only if one doesn't already exist
if (treeNode == null)
{
string nodeAlias = consolidateDashes.Replace(forbidden.Replace(post.BlogPostTitle, "-"), "-");
nodeAlias = (nodeAlias.Length > 50 ? nodeAlias.Substring(0, 50) : nodeAlias); // Truncate the alias to avoid SQL Server errors
// Create the Tree Node for the post and add it in
treeNode = new CMS_Tree()
{
NodeAliasPath = string.Format("{0}/{1}", month.NodeAliasPath, forbidden.Replace(post.BlogPostTitle, "-")),
NodeName = post.BlogPostTitle,
NodeAlias = nodeAlias,
NodeClassID = blogClass.ClassID,
NodeParentID = month.NodeID,
NodeLevel = Int32.Parse(config.Get("kenticoBlogLevel")) + 2,
NodeACLID = 1, // Default ACL ID
NodeSiteID = siteId,
NodeGUID = Guid.NewGuid(),
NodeInheritPageLevels = "",
NodeTemplateForAllCultures = true,
NodeChildNodesCount = 0
};
CMS_User author = GetAuthor(context, post);
treeNode.NodeOwner = author.UserID;
context.CMS_Tree.AddObject(treeNode);
treeNode.NodeOrder = GetNodeOrder(context, treeNode);
month.NodeChildNodesCount++; // Increment the child nodes count, so the new post will display in the CMS
blog.NodeChildNodesCount++; // Increment the blog's child nodes count, too.
context.SaveChanges();
}
CMS_TagGroup tagGroup = GetTagGroup(context);
// Create the document and add it into the database
CMS_Document postDoc = AddDocument(context, treeNode, post.BlogPostID, tagGroup.TagGroupID);
return(postDoc);
}
/**
* The main function for importing the posts.
*
* @param entity context
*/
protected static void ProcessPosts(kenticofreeEntities context)
{
Console.WriteLine("Adding posts to database.");
// Gather list of Posts and make them each Entities
var posts = (from i in wpxml.Descendants("item")
where i.Element(wpns + "post_type").Value == "post" && i.Element(wpns + "status").Value == "publish"
select new CONTENT_BlogPost {
BlogPostID = Int32.Parse(i.Element(wpns + "post_id").Value),
BlogPostTitle = i.Element("title").Value,
BlogPostDate = DateTime.Parse(i.Element(wpns + "post_date").Value),
BlogPostSummary = (String.IsNullOrEmpty(i.Element("description").Value) ? i.Element("title").Value : i.Element("description").Value),
BlogPostAllowComments = true,
BlogPostBody = i.Element(encoded + "encoded").Value.Replace("\n", "<br/>"), // CDATA element
BlogLogActivity = true
});
// Get the blog by the ID set in the settings
CMS_Tree blog = (from b in context.CONTENT_Blog
join d in context.CMS_Document on b.BlogID equals d.DocumentForeignKeyValue
join t in context.CMS_Tree on d.DocumentNodeID equals t.NodeID
where b.BlogID == blogId && t.NodeClassID == 3423 //Blog class ID, otherwise we end up with a bunch of stuff that aren't blogs
select t).FirstOrDefault();
if (blog == null)
{
Console.WriteLine("No blog with the ID of " + blogId + " detected. Adding new blog.");
CONTENT_Blog b = new CONTENT_Blog()
{
BlogName = "BlogImport",
BlogDescription = "The Imported Blog",
BlogOpenCommentsFor = "-1",
BlogEnableTrackbacks = true
};
CMS_Class blogClass = context.CMS_Class.Where(x => x.ClassName == "CMS.BlogPost").First();
CMS_Tree root = context.CMS_Tree.Where(x => x.NodeClassID == 1095).Where(x => x.NodeSiteID == siteId).First();
blog = new CMS_Tree()
{
NodeAliasPath = "/" + b.BlogName,
NodeName = b.BlogName,
NodeAlias = b.BlogName,
NodeClassID = blogClass.ClassID,
NodeLevel = Int32.Parse(config.Get("kenticoBlogLevel")),
NodeACLID = 1, // Default ACL ID
NodeSiteID = siteId,
NodeOwner = nodeOwnerId,
NodeOrder = 100,
NodeGUID = Guid.NewGuid(),
NodeInheritPageLevels = "",
NodeTemplateForAllCultures = true,
NodeChildNodesCount = 0,
NodeParentID = (root != null ? root.NodeID : 0)
};
context.CONTENT_Blog.AddObject(b);
context.CMS_Tree.AddObject(blog);
context.SaveChanges();
AddDocument(context, blog, b.BlogID);
}
Console.WriteLine("Connecting categories, tags, and comments to posts. This may take a while.");
foreach (CONTENT_BlogPost post in posts)
{
CMS_Document postDoc = ImportPost(context, blog, post);
LinkCategoriesAndTags(context, postDoc, post);
ImportComments(context, postDoc);
}
OrderPosts(context, blog);
}