How to add Javascript to simple_form?

Question

I'm using simple_form with Rails 3.2.5. I have a form that looks like this:

<%= simple_form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => {:class => 'form-vertical' }, :html => {:name => "new_user"}) do |f| %>
    <%= f.error_notification %>
    <%= f.input :field_one,
                :placeholder => '30000',
            :autofocus => true,
            :required => true,
            :html => {:onFocus => 'startCalc();'},
            :html => {:onBlur => 'stopCalc();'} %>
# More form fields

<% end %>

I'm trying to call a Javascript driven calculation when a user enters a number in the form field, but the Javascript isn't showing up in the outputted HMTL:

<input autofocus="autofocus" class="numeric decimal required" id="field_one" name="user[field_one]" placeholder="30000" step="any" type="number" />

Does anyone know how to get simple_form to add these bits of Javascript?

Thanks!

Greg

Greg Carter · Accepted Answer · 2012-12-08 17:44:35Z

4

I see my error now. As per the simple_form documentation, I need to use:

:input_html => {:onFocus => 'startCalc();'},
:input_html => {:onBlur => 'stopCalc();'}

This works!

answered Dec 8, 2012 at 17:44

Greg Carter

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