unable to query with friendly_id rails -


here controller

before_action :seo_url_product,only: :product  def seo_url_product     if params[:id]          @posts = post.friendly.where(sub_category_id: params[:id]).paginate(page:   params[:page], per_page: 2).to_a      end end

here view 

<% category.sub_categories.each |sub_category| %>     <li><%= link_to sub_category.name, controller: :posts, action: :product, id: sub_category %></li> <% end %>

i can see friendly url when click sub_categories not see result.

i think problem trying query slug not real id. know friendly_id use slug. should find real id first try query.

insted of params[:id] in where query can use following.

sub_category_id = sub_category.friendly.find(params[:id]) # find id insted of slug @posts = post.friendly.where(sub_category_id: sub_category_id).paginate(page:   params[:page], per_page: 2).to_a

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