gistfile1.coffee

# Handles forms where an infinite amount of fieldsets can be added or removed
#
# @author Mike Hart
# @version 0.2
# @copyright Smaller Earth Tech Ltd

add_remove_item_listener = ->
	jQuery('remove_item').unbind 'click'

	jQuery('.remove_item').on('click', (event) ->
		event.stopPropagation()
		
		jQuery(event.target).closest('.item').find('[name*=_destroy]').val(true)
		jQuery(event.target).closest('.item').css('display', 'none')
	)

ready = ->
	add_remove_item_listener()

	jQuery('.add_item').on('click', (event) ->
		event.stopPropagation()
		
		jQuery('.item:last').after(jQuery('.item:first').clone())
		i = jQuery('div.item').length
	
		jQuery('.item:last input, .item:last select, .item:last textarea').each((index, el) ->
			original_name = jQuery(el).attr("name")
			new_name = original_name.replace(/\[[0-9]\]/, "[#{ i.toString() }]")

			original_id = jQuery(el).attr("id")
			new_id = original_id.replace(/_[0-9]_/, "_#{ i.toString() }_")
		
			if ($(el).attr("type") != "hidden")	
				jQuery(el).val('').attr('name', new_name)
				jQuery(el).val('').attr('id', new_id)
			else
				jQuery(el).attr('name', new_name)
				jQuery(el).attr('id', new_id)
		)

		add_remove_item_listener()
	)

jQuery(document).on('ready page:load', ready)