问通过select_tag发送额外的参数值

EN

<%= form_tag(update_user_products_path, :id => "update_user_form") do %>
<%@products.each do |product| %>
            <div class = "prod">
            <a href='<%= recommendations_path(:product_id => product.id, :rating_set_id => params[:rating_set_id]) %>' target="_blank"><img src='<%= product.cover_img %>' class='product_image_prods'></img></a>
            <div class= "title"><small><b><%= link_to truncate(product.title, :length =>30),  recommendations_path(:product_id => product.id, :rating_set_id => params[:rating_set_id]), :target => '_blank' %></b></small></div>
            <br/>
            <div><em>Current Rating: <%= product.rating %> </em></div>
            <%= select_tag "user_id:#{product.id}", options_for_select(User.all.collect {|u| [ u.name, u.id ] })%>
            </div>
            <% end %>
    <%= submit_tag %>
<% end %>

utf8
authenticity_token
user_id:1
user_id:2
user_id:3
user_id:4
...
user_id:78
commit
action
controller