module ForumsHelper
	def forum_breadcrumb(item)
		forum = item.is_a?(Memo) ? item.forum : item
		links = [link_to(l(:label_forum_plural), forums_path(item))]
		forums = forum.ancestors.reverse
		if item.is_a?(Memo)
			forums << forum
		end
		links += forums.map {|ancestor| link_to(h(ancestor.name), forum_path(ancestor))}
		breadcrumb links
	end

	def forums_options_for_select(forums)
		options = []
		Forum.forum_tree(forums) do |forum, level|
			label = (level > 0 ? '&nbsp;' * 2 * level + '&#187; ' : '').html_safe
			label << forum.name
			options << [label, forum.id]
		end
		options
	end

	# this method is used to get all projects that tagged one tag
	# added by william
	def get_forums_by_tag(tag_name)
		Forum.tagged_with(tag_name).order('updated_at desc')
	end
end