added stock owning org to details

app/controllers/schemes_controller.rb

@@ -103,7 +103,7 @@ private
   end
 
   def scheme_params
-    required_params = params.require(:scheme).permit(:service_name, :sensitive, :organisation_id, :scheme_type, :registered_under_care_act, :total_units, :id, :has_other_client_group, :primary_client_group, :secondary_client_group, :support_type, :intended_stay)
+    required_params = params.require(:scheme).permit(:service_name, :sensitive, :organisation_id, :stock_owning_organisation_id, :scheme_type, :registered_under_care_act, :total_units, :id, :has_other_client_group, :primary_client_group, :secondary_client_group, :support_type, :intended_stay)
     required_params[:sensitive] = required_params[:sensitive].to_i if required_params[:sensitive]
     if current_user.data_coordinator?
       required_params[:organisation_id] = current_user.organisation_id

app/views/schemes/details.html.erb

@@ -25,15 +25,23 @@
          multiple: false,
          label: { text: "This scheme contains confidential information" } %>
 
-       <% if current_user.support? %>
+       <% null_option = [OpenStruct.new(id: "", name: "Select an option")] %>
-         <% answer_options = Organisation.all.map { |org| OpenStruct.new(id: org.id, name: org.name) } %>
+       <% organisations = Organisation.all.map { |org| OpenStruct.new(id: org.id, name: org.name) } %>
+       <% stock_org_answer_options = null_option + organisations %>
+
+       <%= f.govuk_collection_select :stock_owning_organisation_id,
+                                     stock_org_answer_options,
+                                     :id,
+                                     :name,
+                                     label: { text: "Which organisation owns the housing stock for this scheme?", size: "m" },
+                                     "data-controller": %w[accessible-autocomplete conditional-filter] %>
 
+       <% if current_user.support? %>
          <%= f.govuk_collection_select :organisation_id,
-           answer_options,
+                                       organisations,
                                        :id,
                                        :name,
-           label: { text: "Which organisation manages this scheme", size: "m" },
+                                       label: { text: "Which organisation manages this scheme?", size: "m" },
-           hint: { text: "Enter organisation name" },
                                        options: { required: true },
                                        "data-controller": %w[accessible-autocomplete conditional-filter] %>
        <% end %>