Question

The code below displays peferctly what i want to accomplish (show store name and item name).But when i subtitute @onedeal=@deal.find_with_ids(62) with @onedeal=@deal.find(params[:id]) i get an error Couldn't find Deal without an ID.What method should i use to fetch deal ID dynamically?The relationship between the Deal and store model is has many :through.

controller

  @deal=@city.deals
  @onedeal=@deal.find_with_ids(62)
  @store=@onedeal.stores.first(params[:store_id])

view

   <% @deal.each do |deal| %>
   <%=deal.item_name %>
   <%end%>
    <%=@store.store_name %>

Answer 1

That error means that params[:id] is empty. Check your params hash to see what it contains, and verify that your action is getting the input it expects.

You are absolutely using the .find method as intended, so I don’t think that’s the issue.