Adding a method to FormBuilder that calls a helper method that renders a partial

Question

So I\'ve got this helper method, right?

def table_form_field(name_or_options = nil, *args, &block)
  # ...
  render :partial => \"snippets/table_form_fiel         


        

Answer 1

You can access an instance variable called @template from within form builders so you can just call table_form_field on the @template variable.

For example, I would create a custom form builder that inherits from ActionView::Helpers::FormBuilder

class MyFormBuilder < ActionView::Helpers::FormBuilder
  def table_form_field(*attrs, &block)
    @template.table_form_field(*attrs, &block)
  end
end

Then in your form_for you can tell it to use your custom form builder

<%= form_for @myobject, :builder => MyFormBuilder do |f| %>
  <%= f.table_form_field :myfield do %>
  <% end %>
<%= end %>