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# frozen_string_literal: true
# Redmine - project management software
# Copyright (C) 2006-2023 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class Wiki < ActiveRecord::Base
include Redmine::SafeAttributes
belongs_to :project
has_many :pages, lambda {order(Arel.sql('LOWER(title)').asc)}, :class_name => 'WikiPage', :dependent => :destroy
has_many :redirects, :class_name => 'WikiRedirect'
acts_as_watchable
validates_presence_of :start_page
validates_format_of :start_page, :with => /\A[^,\.\/\?\;\|\:]*\z/
validates_length_of :start_page, maximum: 255
before_destroy :delete_redirects
safe_attributes 'start_page'
def visible?(user=User.current)
!user.nil? && user.allowed_to?(:view_wiki_pages, project)
end
# Returns the wiki page that acts as the sidebar content
# or nil if no such page exists
def sidebar
@sidebar ||= find_page('Sidebar', :with_redirect => false)
end
# find the page with the given title
# if page doesn't exist, return a new page
def find_or_new_page(title)
title = start_page if title.blank?
find_page(title) || WikiPage.new(:wiki => self, :title => Wiki.titleize(title))
end
# find the page with the given title
def find_page(title, options = {})
@page_found_with_redirect = false
title = start_page if title.blank?
title = Wiki.titleize(title)
page = pages.find_by("LOWER(title) = LOWER(?)", title)
if page.nil? && options[:with_redirect] != false
# search for a redirect
redirect = redirects.where("LOWER(title) = LOWER(?)", title).first
if redirect
page = redirect.target_page
@page_found_with_redirect = true
end
end
page
end
# Returns true if the last page was found with a redirect
def page_found_with_redirect?
@page_found_with_redirect
end
# Deletes all redirects from/to the wiki
def delete_redirects
WikiRedirect.where(:wiki_id => id).delete_all
WikiRedirect.where(:redirects_to_wiki_id => id).delete_all
end
# Finds a page by title
# The given string can be of one of the forms: "title" or "project:title"
# Examples:
# Wiki.find_page("bar", project => foo)
# Wiki.find_page("foo:bar")
def self.find_page(title, options = {})
project = options[:project]
if title.to_s =~ %r{^([^\:]+)\:(.*)$}
project_identifier, title = $1, $2
project = Project.find_by_identifier(project_identifier) || Project.find_by_name(project_identifier)
end
if project && project.wiki
page = project.wiki.find_page(title)
if page && page.content
page
end
end
end
# turn a string into a valid page title
def self.titleize(title)
# replace spaces with _ and remove unwanted caracters
title = title.gsub(/\s+/, '_').delete(',./?;|:') if title
# upcase the first letter
title = (title.slice(0..0).upcase + (title.slice(1..-1) || '')) if title
title
end
end
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