Small improvements

app/controllers/folio/users/registrations_controller.rb

@@ -6,7 +6,7 @@ class Folio::Users::RegistrationsController < Devise::RegistrationsController
   include Folio::Users::DeviseControllerBase
 
   def new
-    fail ActionController::MethodNotAllowed, ""
+    fail ActionController::MethodNotAllowed, "Registrations are created by inviting user, not directly"
   end
 
   def edit
@@ -20,7 +20,7 @@ def edit
   end
 
   def create
-    fail ActionController::MethodNotAllowed, ""
+    fail ActionController::MethodNotAllowed, "Registrations are created by inviting user, not directly"
 
     build_resource(sign_up_params)
 

app/models/concerns/folio/belongs_to_site.rb

@@ -10,6 +10,8 @@ module Folio::BelongsToSite
     validate :validate_belongs_to_site
 
     scope :by_atom_setting_site_id, -> (site_id) { where(site_id:) }
+    scope :by_site, ->(site) { where(site:) }
+    scope :by_site_id, ->(site_id) { where(site_id:) }
   end
 
   class_methods do

app/models/folio/site.rb

@@ -101,6 +101,13 @@ def layout_twitter_meta
     }
   end
 
+  def <=>(other)
+    res = self.title <=> other.title
+    return res unless res.zero?
+
+    self.id <=> other.id
+  end
+
   def console_form_tabs_base
     %i[
       header_message

app/models/folio/user.rb

@@ -84,6 +84,13 @@ def to_console_label
     end
   end
 
+  def <=>(other)
+    res = self.full_name <=> other.full_name
+    return res unless res.zero?
+
+    self.id <=> other.id
+  end
+
   def remember_me
     super.nil? ? "1" : super
   end

lib/folio.rb

@@ -66,7 +66,7 @@ def self.current_site(request: nil)
     if Rails.application.config.folio_site_is_a_singleton
       Folio::Site.instance
     else
-      fail "You must implement this yourself"
+      fail "You must implement :current_site yourself"
     end
   end
 

lib/folio/engine.rb

@@ -100,7 +100,7 @@ class Engine < ::Rails::Engine
     end
 
     initializer :append_migrations do |app|
-      unless app.root.to_s.include? root.to_s
+      unless app.root.to_s.include?(root.to_s + "/")
         config.paths["db/migrate"].expanded.each do |expanded_path|
           app.config.paths["db/migrate"] << expanded_path
         end
@@ -124,7 +124,7 @@ class Engine < ::Rails::Engine
             deprecations << "Missing index_folio_pages_on_by_query index on folio_pages. That is probably caused by using traco title_* attributes. Add a custom one."
           end
 
-          if !Rails.env.test? && ActiveRecord::Base.connection.exec_query("SELECT id FROM folio_email_templates LIMIT 1;").rows.size == 0
+          if !Rails.env.test? && ActiveRecord::Base.connection.exec_query("SELECT id FROM folio_email_templates WHERE mailer ='Folio::DeviseMailer' LIMIT 1;").rows.size == 0
             deprecations << "There are no email templates present. Seed them via rake folio:email_templates:idp_seed"
           end
         rescue ActiveRecord::NoDatabaseError, ActiveRecord::ConnectionNotEstablished, ActiveRecord::StatementInvalid