ruby - Rails - grouped_collection_select -


i'm trying grouped_collection_select following

class user   has_many :pages, :through => pages_users end  class page   has_many :users, :through => pages_users   # name - string   # type - string end  class pagesuser < activerecord::base   belongs_to :page    belongs_to :user end

and want drop down grouped type name underneath. example i've seen city/country/continent, isn't helpful i'd like. what's best way of doing this? think want ...

<%= grouped_collection_select(:user, :page_id, user.pages, :type, :name, ) %>

but isn't correct.

any thoughts?

edited show actual relationships through pages_users table.

here's ended ...

<%= select_tag 'page_id', grouped_options_for_select(page.for_select) %>

where page.for_select looks ...

def for_select   {     'type 1'   => type1.map { |p| [p.name, p.id] },     'type 2' => type2.map { |p| [p.name, p.id] }   } end

hope helps else.


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