1 files changed, 23 insertions, 3 deletions
diff --git a/app/models/appearance.rb b/app/models/appearance.rb
index c79326e8427..dcd14c08f3c 100644
--- a/app/models/appearance.rb
+++ b/app/models/appearance.rb
@@ -2,13 +2,33 @@ class Appearance < ActiveRecord::Base
   include CacheMarkdownField
 
   cache_markdown_field :description
+  cache_markdown_field :new_project_guidelines
 
-  validates :title,       presence: true
-  validates :description, presence: true
   validates :logo,        file_size: { maximum: 1.megabyte }
   validates :header_logo, file_size: { maximum: 1.megabyte }
 
+  validate :single_appearance_row, on: :create
+
   mount_uploader :logo,         AttachmentUploader
   mount_uploader :header_logo,  AttachmentUploader
-  has_many :uploads, as: :model, dependent: :destroy
+
+  has_many :uploads, as: :model, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
+
+  CACHE_KEY = 'current_appearance'.freeze
+
+  after_commit :flush_redis_cache
+
+  def self.current
+    Rails.cache.fetch(CACHE_KEY) { first }
+  end
+
+  def flush_redis_cache
+    Rails.cache.delete(CACHE_KEY)
+  end
+
+  def single_appearance_row
+    if self.class.any?
+      errors.add(:single_appearance_row, 'Only 1 appearances row can exist')
+    end
+  end
 end