Add feature flag for topic pages on WDTK

lib/alavetelitheme.rb

@@ -58,7 +58,8 @@ def prepend_theme_assets
               'school_late_calculator.rb',
               'volunteer_contact_form.rb',
               'data_breach.rb',
-              'excel_analyzer.rb']
+              'excel_analyzer.rb',
+              'topic_pages.rb']
     require File.expand_path "../#{patch}", __FILE__
 end
 

lib/topic_pages.rb

@@ -0,0 +1,8 @@
+Rails.configuration.after_initialize do
+  feature_keys = AlaveteliFeatures.features.all.map(&:key)
+
+  AlaveteliFeatures.features.add(
+    :wdtk_topic_pages,
+    label: 'Browse request topic pages'
+  ) unless feature_keys.include?(:wdtk_topic_pages)
+end

lib/views/request/_tabs.html.erb

@@ -0,0 +1,10 @@
+<% if feature_enabled?(:wdtk_topic_pages, current_user) %>
+  <% content_for :subnav do %>
+    <li class="<%= 'selected' unless current_page?(requests_path) %>">
+      <%= link_to _('Search requests'), request_list_path %>
+    </li>
+    <li class="<%= 'selected' if current_page?(requests_path) %>">
+      <%= link_to _('Browse by category'), requests_path %>
+    </li>
+  <% end %>
+<% end %>