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

Something like this should do what you want:

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

UPDATE: You updated your question so I have to update my answer. Render is the right way to do this. However, it looks like you load some categories and some other collection of stuff in your new method. Those same instance variables should be available to your create method. The cleanest way to do this is put them into another method and have that method used as a before_filter applied to both create and new. Something like this:

before_filter :load_stuff, :only => [:create, :new]

def load_stuff
  @arr_select = { 1=>"One",2=>"Two" ,3=>"Three" }
  @categories_select = Category.all.collect {|c| [ c.category_name, c.id ] }
end

Then your new method is pretty much blank and calling render :new in your create method should work.