Fix incoming redelivery to multiple

app/controllers/admin_incoming_message_controller.rb

@@ -78,30 +78,34 @@ def bulk_destroy
   end
 
   def redeliver
-
-    message_ids = params[:url_title].split(",").each(&:strip)
+    message_ids = params[:url_title].split(',').map(&:strip)
     previous_request = @incoming_message.info_request
     destination_request = nil
 
     if message_ids.empty?
-      flash[:error] = "You must supply at least one request to redeliver the message to."
+      flash[:error] =
+        'You must supply at least one request to redeliver the message to.'
+
       return redirect_to admin_request_url(previous_request)
     end
 
     ActiveRecord::Base.transaction do
       message_ids.each do |m|
-        if m.match(/^[0-9]+$/)
-          destination_request = InfoRequest.find_by_id(m.to_i)
-        else
-          destination_request = InfoRequest.find_by_url_title!(m)
-        end
+        destination_request =
+          if m.match(/^[0-9]+$/)
+            InfoRequest.find_by_id(m.to_i)
+          else
+            InfoRequest.find_by_url_title!(m)
+          end
+
         if destination_request.nil?
-          flash[:error] = "Failed to find destination request '" + m + "'"
+          flash[:error] = "Failed to find destination request '#{m}'"
           return redirect_to admin_request_url(previous_request)
         end
 
         raw_email_data = @incoming_message.raw_email.data
         mail = MailHandler.mail_from_raw_email(raw_email_data)
+
         destination_request.
           receive(mail,
                   raw_email_data,
@@ -114,12 +118,15 @@ def redeliver
           deleted_incoming_message_id: @incoming_message.id
         )
 
-        flash[:notice] = "Message has been moved to request(s). Showing the last one:"
+        flash[:notice] =
+          'Message has been moved to request(s). Showing the last one:'
       end
+
       # expire cached files
       previous_request.expire
       @incoming_message.destroy
     end
+
     redirect_to admin_request_url(destination_request)
   end
 

spec/controllers/admin_incoming_message_controller_spec.rb

@@ -74,6 +74,7 @@
       FactoryBot.create(:incoming_message, info_request: previous_info_request)
     end
     let(:destination_info_request) { FactoryBot.create(:info_request) }
+    let(:destination_info_request_2) { FactoryBot.create(:info_request) }
 
     it 'expires the file cache for the previous request' do
       allow(IncomingMessage).to receive(:find).and_return(incoming_message)
@@ -107,6 +108,29 @@
       expect(response).to redirect_to admin_request_url(incoming_message.info_request)
     end
 
+    context 'when redelivering to multiple requests' do
+      before do
+        destination_params =
+          [destination_info_request, destination_info_request_2].
+          map(&:id).
+          join(', ')
+
+        post :redeliver,
+             params: { id: incoming_message.id,
+                       url_title: destination_params }
+      end
+
+      it 'renders a message' do
+        msg = 'Message has been moved to request(s). Showing the last one:'
+        expect(flash[:notice]).to eq(msg)
+      end
+
+      it 'redirects to the last given destination request' do
+        expect(response).
+          to redirect_to admin_request_path(destination_info_request_2)
+      end
+    end
+
     context 'if the request is embargoed', feature: :alaveteli_pro do
       before do
         incoming_message.info_request.create_embargo