Add delete method to terms of service files

app/controllers/admin/terms_of_service_files_controller.rb

@@ -17,6 +17,11 @@ module Admin
       redirect_to main_app.admin_terms_of_service_files_path
     end
 
+    def destroy
+      TermsOfServiceFile.current.destroy!
+      redirect_to main_app.admin_terms_of_service_files_path
+    end
+
     private
 
     # Needed by Spree::Admin::BaseController#authorize_admin or it

app/views/admin/terms_of_service_files/show.html.haml

@@ -3,6 +3,7 @@
 
 - if @current_file
   = link_to t(".terms_of_service"), @current_file.attachment.url
+  = link_to t(".delete"), main_app.admin_terms_of_service_files_path, method: "delete"
 - else
   = t(".no_files")
 

config/locales/en.yml

@@ -453,6 +453,7 @@ en:
         title: "Terms of Service files"
         no_files: "No terms of services have been uploaded yet."
         terms_of_service: "Terms of Service"
+        delete: "Delete"
     number_localization:
       number_localization_settings: "Number Localization Settings"
       enable_localized_number: "Use the international thousand/decimal separator logic"

spec/features/admin/configuration/terms_of_service_files_spec.rb

@@ -6,6 +6,8 @@ describe "Terms of Service files" do
   include AuthenticationHelper
 
   describe "as admin" do
+    let(:test_file_path) { "public/Terms-of-service.pdf" }
+
     before { login_as_admin }
 
     it "can be reached via Configuration" do
@@ -16,7 +18,7 @@ describe "Terms of Service files" do
 
     it "can be uploaded" do
       visit admin_terms_of_service_files_path
-      attach_file "Attachment", Rails.root.join("public/Terms-of-service.pdf")
+      attach_file "Attachment", Rails.root.join(test_file_path)
       click_button "Create Terms of service file"
 
       expect(page).to have_link "Terms of Service"
@@ -26,5 +28,15 @@ describe "Terms of Service files" do
       visit new_admin_terms_of_service_files_path
       expect(page).to have_button "Create Terms of service file"
     end
+
+    it "can delete the current file" do
+      attachment = File.open(Rails.root.join(test_file_path))
+      TermsOfServiceFile.create!(attachment: attachment)
+
+      visit admin_terms_of_service_files_path
+      click_link "Delete"
+
+      expect(page).to have_content "No terms of services have been uploaded yet."
+    end
   end
 end