Two questions that route to each other

app/controllers/case_logs_controller.rb

@@ -7,4 +7,21 @@ class CaseLogsController < ApplicationController
   def show
     @case_log = CaseLog.find(params[:id])
   end
+
+  def edit
+    @case_log = CaseLog.find(params[:id])
+    render 'case_logs/household/tenant_code'
+  end
+
+  def update
+    @case_log = CaseLog.find(params[:id])
+    @case_log.update(tenant_code: params[:case_log][:tenant_code]) if params[:case_log]
+    render_next_question(@case_log)
+  end
+
+  private 
+
+  def render_next_question(case_log)
+    render 'case_logs/household/tenant_age'
+  end
 end

app/views/case_logs/edit.html.erb

@@ -1,8 +1,16 @@
-<%= form_with model: @case_log, builder: GOVUKDesignSystemFormBuilder::FormBuilder do |f| %>
-  <%= f.govuk_number_field :age,
-        hint: { text: "More detail" },
-        label: { text: "What is the tenant's age?", size: "l"},
-        min: 0, max: 150, step: 1, width: 20
-  %>
-  <%= f.govuk_submit %>
-<% end %>
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds">
+    <h1 class="govuk-heading-xl">Tasklist for log
+      <%= @case_log.id %></h1>
+
+    <h2 class="govuk-heading-s govuk-!-margin-bottom-2">This submission is
+      <%= @case_log.status %></h2>
+    <p class="govuk-body govuk-!-margin-bottom-7">You've completed 0 of 9 sections.</p>
+    <p class="govuk-body govuk-!-margin-bottom-7">
+      <a href="#">Skip to next incomplete section</a>
+    </p>
+
+    <%= render "tasklist" %>
+
+  </div>
+</div>

app/views/case_logs/household/tenant_age.html.erb

@@ -0,0 +1,8 @@
+  <%= form_with model: @case_log, method: "patch", builder: GOVUKDesignSystemFormBuilder::FormBuilder do |f| %>
+    <%= f.govuk_number_field :tenant_age,
+            hint: { text: "More detail" },
+            label: { text: "What is the tenant's age?", size: "l"},
+            min: 0, max: 150, step: 1, width: 20
+    %>
+    <%= f.govuk_submit "Save and continue" %>
+<% end %>

app/views/case_logs/household/tenant_code.html.erb

@@ -0,0 +1,8 @@
+<%= form_with model: @case_log, method: "patch", builder: GOVUKDesignSystemFormBuilder::FormBuilder do |f| %>
+   <%= f.govuk_text_field :tenant_code,
+        hint: { text: "More detail" },
+        label: { text: "What is the tenant code?", size: "l"},
+        width: 20
+  %>
+  <%= f.govuk_submit "Save and continue"  %>
+<% end %>

db/migrate/20210914101759_add_question_fields_to_case_logs.rb

@@ -0,0 +1,12 @@
+class AddQuestionFieldsToCaseLogs < ActiveRecord::Migration[6.1]
+  def change
+    add_column :case_logs, :tenant_code, :string
+    add_column :case_logs, :tenant_age, :integer
+    add_column :case_logs, :tenant_gender, :string
+    add_column :case_logs, :tenant_ethnic_group, :string 
+    add_column :case_logs, :tenant_nationality, :string
+    add_column :case_logs, :previous_housing_situation, :string
+    add_column :case_logs, :prior_homelessness, :integer
+    add_column :case_logs, :armed_forces, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_09_08_122819) do
+ActiveRecord::Schema.define(version: 2021_09_14_101759) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -19,6 +19,14 @@ ActiveRecord::Schema.define(version: 2021_09_08_122819) do
     t.integer "status", default: 0
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
+    t.string "tenant_code"
+    t.integer "tenant_age"
+    t.string "tenant_gender"
+    t.string "tenant_ethnic_group"
+    t.string "tenant_nationality"
+    t.string "previous_housing_situation"
+    t.integer "prior_homelessness"
+    t.string "armed_forces"
   end
 
 end

spec/features/case_log_spec.rb

@@ -15,4 +15,12 @@ RSpec.describe "Test Features" do
     expect(page).to have_field("age")
     expect(page).to have_button("Continue")
   end
+
+  it "displays the household questions when you click into that section" do
+    visit("/case_logs/#{id}")
+    click_link("Household characteristics")
+    expect(page).to have_field("case-log-tenant-code-field")
+    click_button("Save and continue")
+    expect(page).to have_field("case-log-tenant-age-field")
+  end
 end