Add upload of Terms of Service files

Admins can upload files and view the most recent (current) one.

app/controllers/admin/terms_of_service_files_controller.rb

@@ -3,6 +3,25 @@
 module Admin
   class TermsOfServiceFilesController < Spree::Admin::BaseController
     def show
+      @current_file = TermsOfServiceFile.current
+      @new_file = TermsOfServiceFile.new
+    end
+
+    def create
+      TermsOfServiceFile.create!(file_params)
+      redirect_to main_app.admin_terms_of_service_files_path
+    end
+
+    private
+
+    # Needed by Spree::Admin::BaseController#authorize_admin or it
+    # tries to find a Spree model.
+    def model_class
+      TermsOfServiceFile
+    end
+
+    def file_params
+      params.require(:terms_of_service_file).permit(:attachment)
     end
   end
 end

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

@@ -1,4 +1,12 @@
 - content_for :page_title do
   = t(".title")
 
-= t(".no_files")
+- if @current_file
+  = link_to t(".terms_of_service"), @current_file.attachment.url
+- else
+  = t(".no_files")
+
+= form_for [main_app, :admin, @new_file] do |f|
+  = f.label :attachment
+  = f.file_field :attachment
+  = f.submit

config/locales/en.yml

@@ -450,7 +450,9 @@ en:
 
     terms_of_service_files:
       show:
+        title: "Terms of Service files"
         no_files: "No terms of services have been uploaded yet."
+        terms_of_service: "Terms of Service"
     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

@@ -13,5 +13,13 @@ describe "Terms of Service files" do
       click_link "Terms of Service"
       expect(page).to have_content "No terms of services have been uploaded yet."
     end
+
+    it "can be uploaded" do
+      visit admin_terms_of_service_files_path
+      attach_file "Attachment", Rails.root.join("public/Terms-of-service.pdf")
+      click_button "Create Terms of service file"
+
+      expect(page).to have_link "Terms of Service"
+    end
   end
 end