Customize error message with simple_form

Question

I\'m using the simple_form gem. I want to customize the error message displayed when a user fails validations. How can I accomplish this?

Answer 1

1. You can declare the content of the error message in your model:

   validates_length_of :name, :minimum => 5, :message => "blah blah blah"
   

2. You can set id or class for your error tag:

   <%= f.input :name, :error_html => { :id => "name_error"} %> 
   

   Then you can use CSS for the styling.

3. And you can use

   <%= f.error :name, :id => "name_error" %>
   

   and you'll get

   is too short (minimum is 5 characters)