Show ruby on rails server side form validation on a particular input element

Question

What I want is that I want to show error just below every input fields. For example I have two fields name and description,then it should display error relating to name just below the name input fields and description just below the description input field.

Answer 1

We've recently started using client_side_validations , and it's pretty nice. You essentially just need to add :validate => true to your forms:

<%= form_for @model, :validate => true do |f| %>

You may need to add some custom JavaScript too. Check out the RailsCast for it too.

Answer 2

Well you can use something like this: This is what that can be used for email input field

<tr>
   <div>
    <td>   <%= u.label :email %></td>
    <td>   <%= u.text_field :email, size: 30 %> </td>
    <td>
      <% if @user.errors[:email].any? %>
        <%= @user.errors[:email].join(",") %>
      <% end %>
    </td>
   </div>
  </tr>

similarly you can use it for textarea