link_to_action with confirmation

I like Merb, it gives you the best flexibility to extends or hack by yourself. Unlike Rails which gives you every thing that you might need, in merb some of the basic features may need polished. For example, the helper plugin have the delete_button helper method, it deletes the record without get any confirmation. Some times in my app, I want get the user's confirmation first. This is easy, implement your own helper method. There might be a better way to do this, but this works for me:

	# create a link to an action. A confirm box will pop up before
	# you can process to action specified here.
	# link_to_action "Delete", "Are you sure?", :method => 'delete',
	# :class => "negative", :controller => 'price_letters',
	# :action => 'destroy', :id => letter.id
	# link_to_action "Effect Now", "Take effect now, and can not be reversed?",
	# :controller => "price_letters", :action => 'effect_now', :id => letter.id
	def link_to_action(link_text, msg = "Are you sure", attributes = {})
	content = (msg || "Are you sure?")
	attrs = { :method => 'post' }
	attrs = attrs.merge(attributes)
	%{<a href="/#{attrs[:controller]}/#{attrs[:action]}/#{attrs[:id]}"
	onclick="if (confirm('#{content}'))
	{
	var f = document.createElement('form');
	f.style.display = 'none';
	this.parentNode.appendChild(f);
	f.method = 'POST';
	f.action = this.href;
	var m = document.createElement('input');
	m.setAttribute('type', 'hidden');
	m.setAttribute('name', '_method');
	m.setAttribute('value', '#{attrs[:method]}');
	f.appendChild(m);f.submit();
	}
	return false;" class="#{attrs[:class]}">#{link_text}</a>}
	end

view raw link_to_action with confirmation.rb hosted with ❤ by GitHub