Store application wide terms

This allows admins to define terms in the application settings.

Every time the terms are adjusted, a new version is stored and becomes
the 'active' version. This allows tracking which specific version was
accepted by a user.

1 files changed, 19 insertions, 0 deletions

diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 862933bf127..a734cc7a26b 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -220,12 +220,15 @@ class ApplicationSetting < ActiveRecord::Base
     end
   end
 
+  validate :terms_exist, if: :enforce_terms?
+
   before_validation :ensure_uuid!
 
   before_save :ensure_runners_registration_token
   before_save :ensure_health_check_access_token
 
   after_commit do
+    reset_memoized_terms
     Rails.cache.write(CACHE_KEY, self)
   end
 
@@ -507,6 +510,16 @@ class ApplicationSetting < ActiveRecord::Base
     password_authentication_enabled_for_web? || password_authentication_enabled_for_git?
   end
 
+  delegate :terms, to: :latest_terms, allow_nil: true
+  def latest_terms
+    @latest_terms ||= Term.latest
+  end
+
+  def reset_memoized_terms
+    @latest_terms = nil
+    latest_terms
+  end
+
   private
 
   def ensure_uuid!
@@ -520,4 +533,10 @@ class ApplicationSetting < ActiveRecord::Base
     errors.add(:repository_storages, "can't include: #{invalid.join(", ")}") unless
       invalid.empty?
   end
+
+  def terms_exist
+    return unless enforce_terms?
+
+    errors.add(:terms, "You need to set terms to be enforced") unless terms.present?
+  end
 end