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# Redmine - project management software
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# Copyright (C) 2006-2016 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# The WikiController follows the Rails REST controller pattern but with
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# a few differences
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#
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# * index - shows a list of WikiPages grouped by page or date
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# * new - not used
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# * create - not used
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# * show - will also show the form for creating a new wiki page
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# * edit - used to edit an existing or new page
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# * update - used to save a wiki page update to the database, including new pages
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# * destroy - normal
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#
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# Other member and collection methods are also used
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#
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# TODO: still being worked on
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class WikiController < ApplicationController
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default_search_scope :wiki_pages
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before_filter :find_wiki, :authorize
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before_filter :find_existing_or_new_page, :only => [:show, :edit, :update]
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before_filter :find_existing_page, :only => [:rename, :protect, :history, :diff, :annotate, :add_attachment, :destroy, :destroy_version]
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accept_api_auth :index, :show, :update, :destroy
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before_filter :find_attachments, :only => [:preview]
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helper :attachments
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include AttachmentsHelper
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helper :watchers
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include Redmine::Export::PDF
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# List of pages, sorted alphabetically and by parent (hierarchy)
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def index
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load_pages_for_index
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respond_to do |format|
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format.html {
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@pages_by_parent_id = @pages.group_by(&:parent_id)
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}
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format.api
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end
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end
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# List of page, by last update
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def date_index
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load_pages_for_index
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@pages_by_date = @pages.group_by {|p| p.updated_on.to_date}
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end
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def new
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@page = WikiPage.new(:wiki => @wiki, :title => params[:title])
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unless User.current.allowed_to?(:edit_wiki_pages, @project) && editable?
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render_403
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end
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if request.post?
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@page.validate
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if @page.errors[:title].blank?
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path = project_wiki_page_path(@project, @page.title)
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respond_to do |format|
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format.html { redirect_to path }
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format.js { render :js => "window.location = #{path.to_json}" }
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end
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end
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end
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end
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# display a page (in editing mode if it doesn't exist)
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def show
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if params[:version] && !User.current.allowed_to?(:view_wiki_edits, @project)
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deny_access
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return
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end
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@content = @page.content_for_version(params[:version])
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if @content.nil?
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if User.current.allowed_to?(:edit_wiki_pages, @project) && editable? && !api_request?
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edit
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render :action => 'edit'
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else
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render_404
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end
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return
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end
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if User.current.allowed_to?(:export_wiki_pages, @project)
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if params[:format] == 'pdf'
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send_file_headers! :type => 'application/pdf', :filename => "#{@page.title}.pdf"
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return
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elsif params[:format] == 'html'
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export = render_to_string :action => 'export', :layout => false
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send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")
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return
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elsif params[:format] == 'txt'
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send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")
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return
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end
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end
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@editable = editable?
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@sections_editable = @editable && User.current.allowed_to?(:edit_wiki_pages, @page.project) &&
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@content.current_version? &&
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Redmine::WikiFormatting.supports_section_edit?
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respond_to do |format|
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format.html
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format.api
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end
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end
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# edit an existing page or a new one
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def edit
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return render_403 unless editable?
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if @page.new_record?
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if params[:parent].present?
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@page.parent = @page.wiki.find_page(params[:parent].to_s)
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end
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end
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@content = @page.content_for_version(params[:version])
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@content ||= WikiContent.new(:page => @page)
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@content.text = initial_page_content(@page) if @content.text.blank?
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# don't keep previous comment
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@content.comments = nil
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# To prevent StaleObjectError exception when reverting to a previous version
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@content.version = @page.content.version if @page.content
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@text = @content.text
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if params[:section].present? && Redmine::WikiFormatting.supports_section_edit?
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@section = params[:section].to_i
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@text, @section_hash = Redmine::WikiFormatting.formatter.new(@text).get_section(@section)
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render_404 if @text.blank?
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end
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end
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# Creates a new page or updates an existing one
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def update
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return render_403 unless editable?
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was_new_page = @page.new_record?
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@page.safe_attributes = params[:wiki_page]
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@content = @page.content || WikiContent.new(:page => @page)
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content_params = params[:content]
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if content_params.nil? && params[:wiki_page].is_a?(Hash)
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content_params = params[:wiki_page].slice(:text, :comments, :version)
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end
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content_params ||= {}
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@content.comments = content_params[:comments]
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@text = content_params[:text]
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if params[:section].present? && Redmine::WikiFormatting.supports_section_edit?
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@section = params[:section].to_i
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@section_hash = params[:section_hash]
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@content.text = Redmine::WikiFormatting.formatter.new(@content.text).update_section(@section, @text, @section_hash)
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else
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@content.version = content_params[:version] if content_params[:version]
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@content.text = @text
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end
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@content.author = User.current
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if @page.save_with_content(@content)
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attachments = Attachment.attach_files(@page, params[:attachments] || (params[:wiki_page] && params[:wiki_page][:uploads]))
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render_attachment_warning_if_needed(@page)
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call_hook(:controller_wiki_edit_after_save, { :params => params, :page => @page})
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respond_to do |format|
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format.html {
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anchor = @section ? "section-#{@section}" : nil
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redirect_to project_wiki_page_path(@project, @page.title, :anchor => anchor)
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}
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format.api {
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if was_new_page
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render :action => 'show', :status => :created, :location => project_wiki_page_path(@project, @page.title)
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else
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render_api_ok
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end
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}
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end
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else
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respond_to do |format|
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format.html { render :action => 'edit' }
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format.api { render_validation_errors(@content) }
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end
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end
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rescue ActiveRecord::StaleObjectError, Redmine::WikiFormatting::StaleSectionError
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# Optimistic locking exception
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respond_to do |format|
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format.html {
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flash.now[:error] = l(:notice_locking_conflict)
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render :action => 'edit'
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}
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format.api { render_api_head :conflict }
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end
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end
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# rename a page
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def rename
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return render_403 unless editable?
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@page.redirect_existing_links = true
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# used to display the *original* title if some AR validation errors occur
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@original_title = @page.pretty_title
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@page.safe_attributes = params[:wiki_page]
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if request.post? && @page.save
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flash[:notice] = l(:notice_successful_update)
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redirect_to project_wiki_page_path(@page.project, @page.title)
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end
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end
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def protect
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@page.update_attribute :protected, params[:protected]
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redirect_to project_wiki_page_path(@project, @page.title)
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end
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# show page history
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def history
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@version_count = @page.content.versions.count
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@version_pages = Paginator.new @version_count, per_page_option, params['page']
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# don't load text
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@versions = @page.content.versions.
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select("id, author_id, comments, updated_on, version").
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reorder('version DESC').
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limit(@version_pages.per_page + 1).
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offset(@version_pages.offset).
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to_a
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render :layout => false if request.xhr?
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end
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def diff
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@diff = @page.diff(params[:version], params[:version_from])
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render_404 unless @diff
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end
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def annotate
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@annotate = @page.annotate(params[:version])
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render_404 unless @annotate
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end
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# Removes a wiki page and its history
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# Children can be either set as root pages, removed or reassigned to another parent page
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def destroy
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return render_403 unless editable?
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@descendants_count = @page.descendants.size
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if @descendants_count > 0
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case params[:todo]
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when 'nullify'
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# Nothing to do
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when 'destroy'
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# Removes all its descendants
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@page.descendants.each(&:destroy)
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when 'reassign'
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# Reassign children to another parent page
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reassign_to = @wiki.pages.find_by_id(params[:reassign_to_id].to_i)
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return unless reassign_to
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@page.children.each do |child|
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child.update_attribute(:parent, reassign_to)
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end
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else
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@reassignable_to = @wiki.pages - @page.self_and_descendants
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# display the destroy form if it's a user request
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return unless api_request?
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end
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end
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@page.destroy
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respond_to do |format|
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format.html { redirect_to project_wiki_index_path(@project) }
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format.api { render_api_ok }
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end
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end
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def destroy_version
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return render_403 unless editable?
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if content = @page.content.versions.find_by_version(params[:version])
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content.destroy
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redirect_to_referer_or history_project_wiki_page_path(@project, @page.title)
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else
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render_404
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end
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end
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# Export wiki to a single pdf or html file
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def export
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@pages = @wiki.pages.
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order('title').
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includes([:content, {:attachments => :author}]).
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to_a
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respond_to do |format|
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format.html {
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export = render_to_string :action => 'export_multiple', :layout => false
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send_data(export, :type => 'text/html', :filename => "wiki.html")
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}
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format.pdf {
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send_file_headers! :type => 'application/pdf', :filename => "#{@project.identifier}.pdf"
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}
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end
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end
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def preview
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page = @wiki.find_page(params[:id])
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# page is nil when previewing a new page
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return render_403 unless page.nil? || editable?(page)
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if page
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@attachments += page.attachments
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@previewed = page.content
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end
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@text = params[:content][:text]
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render :partial => 'common/preview'
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end
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def add_attachment
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return render_403 unless editable?
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attachments = Attachment.attach_files(@page, params[:attachments])
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render_attachment_warning_if_needed(@page)
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redirect_to :action => 'show', :id => @page.title, :project_id => @project
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end
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private
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def find_wiki
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@project = Project.find(params[:project_id])
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@wiki = @project.wiki
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render_404 unless @wiki
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rescue ActiveRecord::RecordNotFound
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render_404
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end
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# Finds the requested page or a new page if it doesn't exist
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def find_existing_or_new_page
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@page = @wiki.find_or_new_page(params[:id])
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if @wiki.page_found_with_redirect?
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redirect_to_page @page
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end
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end
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# Finds the requested page and returns a 404 error if it doesn't exist
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def find_existing_page
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@page = @wiki.find_page(params[:id])
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if @page.nil?
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render_404
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return
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end
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if @wiki.page_found_with_redirect?
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redirect_to_page @page
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end
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end
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def redirect_to_page(page)
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if page.project && page.project.visible?
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redirect_to :action => action_name, :project_id => page.project, :id => page.title
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else
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render_404
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end
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end
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# Returns true if the current user is allowed to edit the page, otherwise false
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def editable?(page = @page)
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page.editable_by?(User.current)
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end
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# Returns the default content of a new wiki page
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def initial_page_content(page)
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helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
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extend helper unless self.instance_of?(helper)
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helper.instance_method(:initial_page_content).bind(self).call(page)
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end
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def load_pages_for_index
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@pages = @wiki.pages.with_updated_on.
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reorder("#{WikiPage.table_name}.title").
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includes(:wiki => :project).
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includes(:parent).
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to_a
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end
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end
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