Allow global exports to optionally exclude spam

This is the setting by default.

app/controllers/anonymous_feedback/global_export_requests_controller.rb

@@ -11,10 +11,14 @@ def create
 
 private
   def export_request_params
-    params.permit(:from_date, :to_date).merge(notification_email: current_user.email)
+    params.permit(:from_date, :to_date).merge(notification_email: current_user.email, exclude_spam: exclude_spam?)
   end
 
   def support_api
     GdsApi::SupportApi.new(Plek.find("support-api"))
   end
+
+  def exclude_spam?
+    !!params.permit(:exclude_spam)
+  end
 end

app/views/anonymous_feedback/explore/new.html.erb

@@ -26,7 +26,7 @@
     <% end %>
   </div>
   <% if can? :request, :global_export_request %>
-    <div class="col-md-8">
+    <div class="col-md-8 global-export-request">
       <h2>Total quantity by day</h2>
       <%= form_tag anonymous_feedback_global_export_requests_path, class: 'well formtastic' do %>
         <div class="string input required form-group">
@@ -46,6 +46,12 @@
             <input type="text" name="to_date" id="to-date" class="form-control input-sm" data-module="calendar" data-max-date="0" value="<%= params[:to_date]%>"/>
           </span>
         </div>
+
+        <div class="form-group">
+          <%= check_box_tag 'exclude_spam', 1, true %>
+          <%= label_tag 'exclude_spam', 'Exclude requests marked as spam' %>
+        </div>
+
         <input type="submit" value="Export as CSV" class="btn btn-success" />
       <% end %>
     </div>

spec/controllers/anonymous_feedback/global_export_requests_controller_spec.rb

@@ -20,11 +20,12 @@
         notification_email: user.email,
         from_date: "1 Aug 2016",
         to_date: "8 Aug 2016",
+        exclude_spam: true
       )
     end
 
     it "makes a successful create request" do
-      post :create, from_date: "1 Aug 2016", to_date: "8 Aug 2016"
+      post :create, from_date: "1 Aug 2016", to_date: "8 Aug 2016", exclude_spam: '1'
       expect(stub_request).to have_been_made
     end
 

spec/features/global_export_request_spec.rb

@@ -0,0 +1,22 @@
+require 'rails_helper'
+require 'gds_api/test_helpers/support_api'
+
+feature 'Exporting Global CSV of Feedback' do
+  let(:user) { create :user_who_can_access_everything }
+
+  background do
+    stub_organisations_list
+
+    login_as user
+  end
+
+  scenario 'spam is marked to be removed by default' do
+    visit "/"
+
+    click_link 'Feedback explorer'
+
+    within('.global-export-request') do
+      expect(page.find(:css, 'input[name="exclude_spam"]')).to be_checked
+    end
+  end
+end