//Insert post into today's XML file
public void InsertPost(BlogPost newPost)
{
TypeSerialization ts = new TypeSerialization();
XMLIOHandler xio = new XMLIOHandler();
if (String.IsNullOrEmpty(newPost.ID))
{
newPost.ID = GeneratePostID();
}
System.Collections.Generic.List <BlogPost> newPostCol = new System.Collections.Generic.List <BlogPost>();
newPostCol.Add(newPost);
if (System.IO.File.Exists(dataPath + "\\" + GetOwningXMLFileName(newPost.ID)))
{
foreach (BlogPost oldPost in ts.DeSerializePosts(xio.GetXMLString(GetOwningXMLFileName(newPost.ID))))
{
newPostCol.Add(oldPost);
}
}
if (System.IO.File.Exists(dataPath + GetOwningXMLFileName(newPost.ID)))
{
xio.RmDataFile(GetOwningXMLFileName(newPost.ID));
}
if (newPostCol.Count > 0)
{
xio.WriteXML(ts.SerializeGenericObject(newPostCol), GetOwningXMLFileName(newPost.ID));
}
}
//Deletes post with the ID passed. This function reads in existing XML from owning XML file,
//rebuilds the collection without the deleted post, deletes the owning XML file, and rewrites
//the owning XML file with the same name.
public void DeletePostByID(string postID)
{
XMLIOHandler xio = new XMLIOHandler();
TypeSerialization ts = new TypeSerialization();
System.Collections.Generic.List <BlogPost> newPostCol = new System.Collections.Generic.List <BlogPost>();
foreach (BlogPost tempPost in ts.DeSerializePosts(xio.GetXMLString(GetOwningXMLFileName(postID))))
{
if (tempPost.ID != postID)
{
newPostCol.Add(tempPost);
}
}
xio.RmDataFile(GetOwningXMLFileName(postID));
if (newPostCol.Count > 0)
{
xio.WriteXML(ts.SerializeGenericObject(newPostCol), GetOwningXMLFileName(postID));
}
}
