Enable setting a customized user guide link in general settings for a…

…dmin

app/controllers/spree/admin/general_settings_controller_decorator.rb

@@ -8,6 +8,7 @@ module GeneralSettingsEditPreferences
       def edit
         super
         @preferences_general << :bugherd_api_key
+        @preferences_general << :user_guide_link
       end
     end
     GeneralSettingsController.send(:prepend, GeneralSettingsEditPreferences)

app/models/spree/app_configuration_decorator.rb

@@ -4,6 +4,9 @@
   # we can allow to be modified in the UI by adding appropriate form
   # elements to existing or new configuration pages.
 
+  # General Preferences
+  preference :user_guide_link, :string, default: nil
+
   # Embedded Shopfronts
   preference :enable_embedded_shopfronts, :boolean, default: false
   preference :embedded_shopfronts_whitelist, :text, default: nil

app/views/admin/shared/_user_guide_link.html.haml

@@ -1 +1 @@
-= button_link_to t('.user_guide'), "http://www.openfoodnetwork.org/platform/user-guide/", icon: 'icon-external-link', target: '_blank'
+= button_link_to t('.user_guide'), Spree::Config.user_guide_link, icon: 'icon-external-link', target: '_blank'

config/locales/en.yml

@@ -1427,7 +1427,7 @@ To activate your Profile we need to confirm this email address."
   email_confirmation_link_label: "Confirm this email address »"
   email_confirmation_help_html: "After confirming your email you can access your administration account for this enterprise.
 See the %{link} to find out more about %{sitename}'s features and to start using your profile or online store."
-  email_confirmation_notice_unexpected: "You received this message because you signed up on %{sitename}, or were invited to sign up by someone you probably know. If you don't understand why you are receiving this email, please write to %{contact}." 
+  email_confirmation_notice_unexpected: "You received this message because you signed up on %{sitename}, or were invited to sign up by someone you probably know. If you don't understand why you are receiving this email, please write to %{contact}."
   email_social: "Connect with Us:"
   email_contact: "Email us:"
   email_signoff: "Cheers,"
@@ -2382,6 +2382,7 @@ See the %{link} to find out more about %{sitename}'s features and to start using
   order_information: "Order Information"
   date_completed: "Date Completed"
   amount: "Amount"
+  user_guide_link: "User Guide Link"
   state_names:
     ready: Ready
     pending: Pending

spec/features/admin/general_settings_spec.rb

@@ -0,0 +1,22 @@
+require 'spec_helper'
+
+feature 'General Settings' do
+  include AuthenticationWorkflow
+
+  describe "update" do
+    before do
+      Spree::Config.user_guide_link = nil
+      login_to_admin_section
+    end
+
+    it 'lets me set the instance user guide link' do
+      visit spree.edit_admin_general_settings_path
+
+      fill_in 'user_guide_link', with: 'http://www.openfoodnetwork.org/platform/user-guide/'
+      click_button 'Update'
+
+      expect(page).to have_content 'General Settings has been successfully updated!'
+      expect(Spree::Config.user_guide_link).to eq 'http://www.openfoodnetwork.org/platform/user-guide/'
+    end
+  end
+end