Files
2026-05-10 11:16:49 +09:00

55 lines
1.2 KiB
Ruby

require 'set'
class WikiPage < ApplicationRecord
include MyDiscard
has_many :wiki_revisions, dependent: :destroy
belongs_to :created_user, class_name: 'User'
belongs_to :updated_user, class_name: 'User'
has_many :redirected_from_revisions,
class_name: 'WikiRevision',
foreign_key: :redirect_page_id,
dependent: :nullify
has_many :wiki_versions
attribute :version_no, :integer, default: 1
belongs_to :tag_name
validates :tag_name, presence: true
validates :body, presence: true
def title = tag_name.name
def title= val
(self.tag_name ||= build_tag_name).name = val
end
def current_revision = wiki_revisions.order(id: :desc).first
def resolve_redirect limit: 10
page = self
visited = Set.new
limit.times do
return page if visited.include?(page.id)
visited.add(page.id)
rev = page.current_revision
return page if !(rev&.redirect?) || !(rev.redirect_page)
page = rev.redirect_page
end
page
end
def pred_revision_id(revision_id) =
wiki_revisions.where('id < ?', revision_id).order(id: :desc).limit(1).pick(:id)
def succ_revision_id(revision_id) =
wiki_revisions.where('id > ?', revision_id).order(id: :asc).limit(1).pick(:id)
end