code: def create():
      
      if request.method == "POST":
          title = request.form["title"]
          body = request.form["body"]
          error = None
  
          if not title:
              error = "Title is required."
  
          if error is not None:
              flash(error)
          else:
              db.session.add(Post(title=title, body=body, author=g.user))
              db.session.commit()
              return redirect(url_for("blog.index"))
  
      return render_template("blog/create.html")
docs: Create a new post for the current user.