rails user modifies email

I often thought of this, application user is actually modifying the email contents before mail gets delivered. And I just set one example of it 

	# gem 'ckeditor_rails' # from https://github.com/tsechingho/ckeditor-rails
	# allow modifying existing template
	<textarea name="modified_email" class="ckeditor">
	<%= File.read "#{Rails.root.to_s}/app/views/user_mailer/do_email.html.erb"%>
	</textarea>
	<%= javascript_include_tag "ckeditor-jquery" %>
	<script type="text/javascript">
	$('.ckeditor').ckeditor({
	height: "800px",
	allowedContent: true,
	toolbar: [
	{ name: 'document', items : [ 'Source', '-', 'Undo','Redo', '-','SpellChecker'] },
	{ name: 'basicstyles', items : [ '-', 'Bold','Italic','Underline'] },
	{ name: 'colors', items : [ '-', 'TextColor','BGColor' ] },
	{ name: 'styles', items : [ '-', 'Styles','Format','Font','FontSize' ] },
	{ name: 'tools', items : [ '-', 'Maximize' ] }
	]
	});
	setTimeout(function(){
	$("a.cke_button").attr("style", "padding:8px;");
	$(".cke_chrome").attr("style", "width: 76% !important; overflow: hidden;");
	}, 500);
	</script>
	# in your mailer
	def do_email modified_contents
	body = ActionView::Base.new.render :inline => CGI.unescapeHTML(modified_contents), :locals => { :token => token }
	# you can have assigns as well
	mail :to => recipients,
	:subject => "Do Email",
	:content_type => "text/html",
	:body => body
	end

view raw

modify_emails.html.erb

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