form_for error messages in Ruby on Rails

Question

What is the preferred way to display validation error messages using form_for in Rails 4?

<%= form_for @post do |f| %>
  ...
<% end %&g         


        

Answer 1

This is how I am displaying them for my form object called @location:

<% if @location.errors.any? %>

  <% @location.errors.full_messages.each do |msg| %>
    
<%= msg %>
  <% end %>

<% end %>

Note: put the above code after the <%= form_for @location do |f| %> line