add sitelinks search

app/views/catalog/index.html.erb

@@ -6,6 +6,7 @@
   <% unless has_search_parameters? %>
     <%# if there are no input/search related params, display the "home" partial -%>
     <%= render 'home' %>
+    <%= render 'shared/sitelinks_search_box' %>
   <% else %>
     <%= render 'search_results' %>
   <% end %>

app/views/shared/_sitelinks_search_box.html.erb

@@ -0,0 +1,12 @@
+<script type="application/ld+json">
+  {
+    "@context": "http://schema.org",
+    "@type": "WebSite",
+    "url": "<%= root_url %>",
+    "potentialAction": {
+      "@type": "SearchAction",
+      "target": "<%= root_url %>?q={search_term_string}",
+      "query-input": "required name=search_term_string"
+    }
+  }
+</script>

spec/features/sitelinks_search_box.rb

@@ -0,0 +1,12 @@
+require 'spec_helper'
+
+feature 'Sitelinks search box' do
+  scenario 'is home page' do
+    visit root_path
+    expect(page).to have_css 'script[type="application/ld+json"]'
+  end
+  scenario 'on search page' do
+    visit catalog_index_path q: 'book'
+    expect(page).to_not have_css 'script[type="application/ld+json"]'
+  end
+end