has_many :through , extra data retrieval.

I have a has_many :through companies <-> markets with emails as the join table.

The view is relatively easy:

<% form_for :market, :html => { :id => 'marketform' } do |f|%>   <%= hidden_field_tag "company[companyid]", @company.id, :index => @company.id %>   <% for market in @markets %>     <div>       <%= check_box_tag "company[market_attributes]", market.id, @company.markets.include?(market) %>       <%= label_tag :market_ids, market.name.upcase -%>       <span style="align: right;"><%= text_field_tag "emaildistro[# {market.id}]" %></span>     </div>   <% end %>   <input type="submit" value="Update Markets" onclick="Modalbox.show('/ markets/create', {method: 'post' ,title: 'Sending status', params: Form.serialize('marketform') }); return false;" /> <% end %>

controller:

company = Contactcompany.find(params[:company][:companyid])   markets = params[:company][:market_attributes] ||=   company.market_ids = markets   company.emails.each{|mail|     distro = params[:emaildistro]["#{mail.market.id}"]     mail.update_attributes(:emaildistro => distro)   }

Is there a way to retrieve the emails just like the checkboxes do when you pull up the view?