Allow redirect to remote census configuration tab

Currently after each update of any Settings is redirected to the first
tab by default.
As this new tab remote_census_configuation has a lot of fields to fill
in it is a bit uncomfortable to have to go back to the tab after each
update.

- Add hidden field :tag to set current tag value
- After update add tag value to request.referer
- To avoid errors when partial call has not param :tag, add the "define?"
  method on hidden_field value.

app/controllers/admin/settings_controller.rb

@@ -23,7 +23,7 @@ class Admin::SettingsController < Admin::BaseController
   def update
     @setting = Setting.find(params[:id])
     @setting.update(settings_params)
-    redirect_to request.referer, notice: t("admin.settings.flash.updated")
+    redirect_to request_referer, notice: t("admin.settings.flash.updated")
   end
 
   def update_map
@@ -53,4 +53,8 @@ class Admin::SettingsController < Admin::BaseController
       params.permit(:jpg, :png, :gif, :pdf, :doc, :docx, :xls, :xlsx, :csv, :zip)
     end
 
+    def request_referer
+      return request.referer + params[:setting][:tab] if params[:setting][:tab]
+      request.referer
+    end
 end

app/views/admin/settings/_remote_census_configuration_tab.html.erb

@@ -1,9 +1,9 @@
 <% if feature?(:remote_census) %>
   <h2><%= t("admin.settings.index.remote_census.title") %></h2>
 
-  <%= render "settings_table", settings: @remote_census_general_settings, setting_name: "remote_census_general_name" %>
-  <%= render "settings_table", settings: @remote_census_request_settings, setting_name: "remote_census_request_name" %>
-  <%= render "settings_table", settings: @remote_census_response_settings, setting_name: "remote_census_response_name" %>
+  <%= render "settings_table", settings: @remote_census_general_settings, setting_name: "remote_census_general_name", tab: "#tab-remote-census-configuration" %>
+  <%= render "settings_table", settings: @remote_census_request_settings, setting_name: "remote_census_request_name", tab: "#tab-remote-census-configuration" %>
+  <%= render "settings_table", settings: @remote_census_response_settings, setting_name: "remote_census_response_name", tab: "#tab-remote-census-configuration" %>
 <% else %>
   <div class="callout primary">
     <%= t("admin.settings.index.remote_census.how_to_enable") %>

app/views/admin/settings/_settings_form.html.erb

@@ -1,4 +1,5 @@
 <%= form_for(setting, url: admin_setting_path(setting), html: { id: "edit_#{dom_id(setting)}"}) do |f| %>
+  <%= f.hidden_field :tab, value: tab if defined?(tab) %>
   <div class="small-12 medium-6 large-8 column">
     <%= f.text_area :value, label: false, id: dom_id(setting), lines: 1 %>
   </div>

app/views/admin/settings/_settings_table.html.erb

@@ -18,9 +18,13 @@
         <td class="small-6">
           <% if setting.content_type? %>
             <%= render "admin/settings/content_types_settings_form", setting: setting %>
+          <% else %>
+            <% if defined?(tab) %>
+              <%= render "admin/settings/settings_form", setting: setting, tab: tab %>
             <% else %>
               <%= render "admin/settings/settings_form", setting: setting %>
             <% end %>
+          <% end %>
         </td>
       </tr>
     <% end %>

spec/features/admin/settings_spec.rb

@@ -162,6 +162,39 @@ describe "Admin settings" do
       Setting["feature.remote_census"] = nil
     end
 
+    scenario "Should redirect to #tab-remote-census-configuration after update any remote census setting", :js do
+      setting_remote_census = create(:setting, key: "remote_census.general.any_remote_census_general_setting")
+      Setting["feature.remote_census"] = true
+      admin = create(:administrator).user
+      login_as(admin)
+      visit admin_settings_path
+      find("#remote-census-tab").click
+
+      within("#edit_setting_#{setting_remote_census.id}") do
+        fill_in "setting_#{setting_remote_census.id}", with: "New value"
+        click_button "Update"
+      end
+
+      expect(page).to have_current_path(admin_settings_path)
+      expect(page).to have_css("div#tab-remote-census-configuration.is-active")
+      Setting["feature.remote_census"] = nil
+    end
+
+    scenario "Should not redirect to #tab-remote-census-configuration after do not update any remote census setting", :js do
+      admin = create(:administrator).user
+      login_as(admin)
+      visit admin_settings_path
+
+      within("#edit_setting_#{@setting1.id}") do
+        fill_in "setting_#{@setting1.id}", with: "New value"
+        click_button "Update"
+      end
+
+      expect(page).to have_current_path(admin_settings_path)
+      expect(page).to have_css("div#tab-configuration.is-active")
+      expect(page).not_to have_css("div#tab-remote-census-configuration.is-active")
+    end
+
   end
 
   describe "Skip verification" do