navigation when editing location

app/controllers/locations_controller.rb

@@ -19,7 +19,13 @@ class LocationsController < ApplicationController
   end
 
   def details
-    render :new
+    @scheme = Scheme.find(params[:scheme_id])
+    @location = Location.find(params[:id])
+  end
+
+  def update
+    @scheme = Scheme.find(params[:scheme_id])
+    redirect_to scheme_check_answers_path(@scheme, anchor: "locations")
   end
 
 private

config/routes.rb

@@ -47,8 +47,8 @@ Rails.application.routes.draw do
       get "locations", to: "schemes#locations"
       get "location/new", to: "locations#new"
       post "location/create", to: "locations#create"
-      patch "location", to: "locations#create"
       get "location", to: "locations#details"
+      patch "location", to: "locations#update"
     end
   end
 

spec/models/location_spec.rb

@@ -11,6 +11,7 @@ RSpec.describe Location, type: :model do
 
   describe "#validate_postcode" do
     let(:location) { FactoryBot.build(:location) }
+
     it "does not add an error if postcode is valid" do
       location.postcode = "M1 1AE"
       location.save