Question

I need to display error message on model in rails,

my coding on model is like this,

if my_address.valid?
  # I need here the validation error.
   return nil
end

I used errors.add(“Invalid address”) but it is not working

please help to solve this problem ,

Answer 1

I suggest taking a look at how scaffolds (script/generate scaffold my_model) displays validation errors.

Here’s a short summary:

def create
  @post = Post.new(params[:post])

  if @post.save # .save checks .valid?
    # Do stuff on successful save
  else
    render :action => "new"
  end
end

In the “new” view, you’ll use @post.errors, most likely with <%= error_messages_for :post %>.