Ruby on Rails: How would i stay on the same page if the post is not saved?

Question

def create
    @addpost = Post.new params[:data]
    if @addpost.save
        flash[:notice] = \"Post has been saved successfully.\"
        redirect_to posts_path
    e         


        

Answer 1

flash.now with render is what you're looking for.

flash.now[:notice] = "Post can not be saved, please enter information."
render :new

Also instead of

flash[:notice] = "Post has been saved successfully."
redirect_to posts_path

you can just write

redirect_to posts_path, :notice => "Post has been saved successfully."

and it will do the same thing. It works only with redirect_to though, not with render!