Wiki のバージョン管理 (#317) (#333)

#317

#317

#317

#317

#317

#317

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: #333

backend/app/models/wiki_page.rb

@@ -13,8 +13,11 @@ class WikiPage < ApplicationRecord
            foreign_key: :redirect_page_id,
            dependent: :nullify
 
+  has_many :wiki_versions
+
   belongs_to :tag_name
   validates :tag_name, presence: true
+  validates :body, presence: true
 
   def title = tag_name.name
 
@@ -24,11 +27,6 @@ class WikiPage < ApplicationRecord
 
   def current_revision = wiki_revisions.order(id: :desc).first
 
-  def body
-    rev = current_revision
-    rev.body if rev&.content?
-  end
-
   def resolve_redirect limit: 10
     page = self
     visited = Set.new