#171

backend/app/models/post.rb

@@ -28,6 +28,8 @@ class Post < ApplicationRecord
 
   has_one_attached :thumbnail
 
+  attribute :version_no, :integer, default: 1
+
   before_validation :normalise_url
 
   validates :url, presence: true, uniqueness: true

backend/app/models/tag.rb

@@ -40,6 +40,8 @@ class Tag < ApplicationRecord
   belongs_to :tag_name
   delegate :wiki_page, to: :tag_name
 
+  attribute :version_no, :integer, default: 1
+
   delegate :name, to: :tag_name, allow_nil: true
   validates :tag_name, presence: true
 
@@ -136,7 +138,6 @@ class Tag < ApplicationRecord
     tn = tn.canonical if tn.canonical_id?
 
     Tag.find_undiscard_or_create_by!(tag_name_id: tn.id) do |t|
-      t.version_no = TagVersion.where(tag_id: t.id).order(version_no: :desc).first || 1
       t.category = category
     end
   rescue ActiveRecord::RecordNotUnique

backend/app/models/wiki_page.rb

@@ -15,6 +15,8 @@ class WikiPage < ApplicationRecord
 
   has_many :wiki_versions
 
+  attribute :version_no, :integer, default: 1
+
   belongs_to :tag_name
   validates :tag_name, presence: true
   validates :body, presence: true