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- # Redmine - project management software
- # Copyright (C) 2006-2011 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.
-
- require 'diff'
-
- # The WikiController follows the Rails REST controller pattern but with
- # a few differences
- #
- # * index - shows a list of WikiPages grouped by page or date
- # * new - not used
- # * create - not used
- # * show - will also show the form for creating a new wiki page
- # * edit - used to edit an existing or new page
- # * update - used to save a wiki page update to the database, including new pages
- # * destroy - normal
- #
- # Other member and collection methods are also used
- #
- # TODO: still being worked on
- class WikiController < ApplicationController
- default_search_scope :wiki_pages
- before_filter :find_wiki, :authorize
- before_filter :find_existing_or_new_page, :only => [:show, :edit, :update]
- before_filter :find_existing_page, :only => [:rename, :protect, :history, :diff, :annotate, :add_attachment, :destroy]
-
- helper :attachments
- include AttachmentsHelper
- helper :watchers
- include Redmine::Export::PDF
-
- # List of pages, sorted alphabetically and by parent (hierarchy)
- def index
- load_pages_for_index
- @pages_by_parent_id = @pages.group_by(&:parent_id)
- end
-
- # List of page, by last update
- def date_index
- load_pages_for_index
- @pages_by_date = @pages.group_by {|p| p.updated_on.to_date}
- end
-
- # display a page (in editing mode if it doesn't exist)
- def show
- if @page.new_record?
- if User.current.allowed_to?(:edit_wiki_pages, @project) && editable?
- edit
- render :action => 'edit'
- else
- render_404
- end
- return
- end
- if params[:version] && !User.current.allowed_to?(:view_wiki_edits, @project)
- # Redirects user to the current version if he's not allowed to view previous versions
- redirect_to :version => nil
- return
- end
- @content = @page.content_for_version(params[:version])
- if User.current.allowed_to?(:export_wiki_pages, @project)
- if params[:format] == 'pdf'
- send_data(wiki_page_to_pdf(@page, @project), :type => 'application/pdf', :filename => "#{@page.title}.pdf")
- return
- elsif params[:format] == 'html'
- export = render_to_string :action => 'export', :layout => false
- send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")
- return
- elsif params[:format] == 'txt'
- send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")
- return
- end
- end
- @editable = editable?
- @sections_editable = @editable && User.current.allowed_to?(:edit_wiki_pages, @page.project) &&
- @content.current_version? &&
- Redmine::WikiFormatting.supports_section_edit?
-
- render :action => 'show'
- end
-
- # edit an existing page or a new one
- def edit
- return render_403 unless editable?
- if @page.new_record?
- @page.content = WikiContent.new(:page => @page)
- if params[:parent].present?
- @page.parent = @page.wiki.find_page(params[:parent].to_s)
- end
- end
-
- @content = @page.content_for_version(params[:version])
- @content.text = initial_page_content(@page) if @content.text.blank?
- # don't keep previous comment
- @content.comments = nil
-
- # To prevent StaleObjectError exception when reverting to a previous version
- @content.version = @page.content.version
-
- @text = @content.text
- if params[:section].present? && Redmine::WikiFormatting.supports_section_edit?
- @section = params[:section].to_i
- @text, @section_hash = Redmine::WikiFormatting.formatter.new(@text).get_section(@section)
- render_404 if @text.blank?
- end
- end
-
- # Creates a new page or updates an existing one
- def update
- return render_403 unless editable?
- @page.content = WikiContent.new(:page => @page) if @page.new_record?
- @page.safe_attributes = params[:wiki_page]
-
- @content = @page.content_for_version(params[:version])
- @content.text = initial_page_content(@page) if @content.text.blank?
- # don't keep previous comment
- @content.comments = nil
-
- if !@page.new_record? && params[:content].present? && @content.text == params[:content][:text]
- attachments = Attachment.attach_files(@page, params[:attachments])
- render_attachment_warning_if_needed(@page)
- # don't save content if text wasn't changed
- @page.save
- redirect_to :action => 'show', :project_id => @project, :id => @page.title
- return
- end
-
- @content.comments = params[:content][:comments]
- @text = params[:content][:text]
- if params[:section].present? && Redmine::WikiFormatting.supports_section_edit?
- @section = params[:section].to_i
- @section_hash = params[:section_hash]
- @content.text = Redmine::WikiFormatting.formatter.new(@content.text).update_section(params[:section].to_i, @text, @section_hash)
- else
- @content.version = params[:content][:version]
- @content.text = @text
- end
- @content.author = User.current
- @page.content = @content
- if @page.save
- attachments = Attachment.attach_files(@page, params[:attachments])
- render_attachment_warning_if_needed(@page)
- call_hook(:controller_wiki_edit_after_save, { :params => params, :page => @page})
- redirect_to :action => 'show', :project_id => @project, :id => @page.title
- else
- render :action => 'edit'
- end
-
- rescue ActiveRecord::StaleObjectError, Redmine::WikiFormatting::StaleSectionError
- # Optimistic locking exception
- flash.now[:error] = l(:notice_locking_conflict)
- render :action => 'edit'
- rescue ActiveRecord::RecordNotSaved
- render :action => 'edit'
- end
-
- # rename a page
- def rename
- return render_403 unless editable?
- @page.redirect_existing_links = true
- # used to display the *original* title if some AR validation errors occur
- @original_title = @page.pretty_title
- if request.post? && @page.update_attributes(params[:wiki_page])
- flash[:notice] = l(:notice_successful_update)
- redirect_to :action => 'show', :project_id => @project, :id => @page.title
- end
- end
-
- def protect
- @page.update_attribute :protected, params[:protected]
- redirect_to :action => 'show', :project_id => @project, :id => @page.title
- end
-
- # show page history
- def history
- @version_count = @page.content.versions.count
- @version_pages = Paginator.new self, @version_count, per_page_option, params['p']
- # don't load text
- @versions = @page.content.versions.find :all,
- :select => "id, author_id, comments, updated_on, version",
- :order => 'version DESC',
- :limit => @version_pages.items_per_page + 1,
- :offset => @version_pages.current.offset
-
- render :layout => false if request.xhr?
- end
-
- def diff
- @diff = @page.diff(params[:version], params[:version_from])
- render_404 unless @diff
- end
-
- def annotate
- @annotate = @page.annotate(params[:version])
- render_404 unless @annotate
- end
-
- # Removes a wiki page and its history
- # Children can be either set as root pages, removed or reassigned to another parent page
- def destroy
- return render_403 unless editable?
-
- @descendants_count = @page.descendants.size
- if @descendants_count > 0
- case params[:todo]
- when 'nullify'
- # Nothing to do
- when 'destroy'
- # Removes all its descendants
- @page.descendants.each(&:destroy)
- when 'reassign'
- # Reassign children to another parent page
- reassign_to = @wiki.pages.find_by_id(params[:reassign_to_id].to_i)
- return unless reassign_to
- @page.children.each do |child|
- child.update_attribute(:parent, reassign_to)
- end
- else
- @reassignable_to = @wiki.pages - @page.self_and_descendants
- return
- end
- end
- @page.destroy
- redirect_to :action => 'index', :project_id => @project
- end
-
- # Export wiki to a single pdf or html file
- def export
- @pages = @wiki.pages.all(:order => 'title', :include => [:content, :attachments], :limit => 75)
- respond_to do |format|
- format.html {
- export = render_to_string :action => 'export_multiple', :layout => false
- send_data(export, :type => 'text/html', :filename => "wiki.html")
- }
- format.pdf {
- send_data(wiki_pages_to_pdf(@pages, @project), :type => 'application/pdf', :filename => "#{@project.identifier}.pdf")
- }
- end
- end
-
- def preview
- page = @wiki.find_page(params[:id])
- # page is nil when previewing a new page
- return render_403 unless page.nil? || editable?(page)
- if page
- @attachements = page.attachments
- @previewed = page.content
- end
- @text = params[:content][:text]
- render :partial => 'common/preview'
- end
-
- def add_attachment
- return render_403 unless editable?
- attachments = Attachment.attach_files(@page, params[:attachments])
- render_attachment_warning_if_needed(@page)
- redirect_to :action => 'show', :id => @page.title, :project_id => @project
- end
-
- private
-
- def find_wiki
- @project = Project.find(params[:project_id])
- @wiki = @project.wiki
- render_404 unless @wiki
- rescue ActiveRecord::RecordNotFound
- render_404
- end
-
- # Finds the requested page or a new page if it doesn't exist
- def find_existing_or_new_page
- @page = @wiki.find_or_new_page(params[:id])
- if @wiki.page_found_with_redirect?
- redirect_to params.update(:id => @page.title)
- end
- end
-
- # Finds the requested page and returns a 404 error if it doesn't exist
- def find_existing_page
- @page = @wiki.find_page(params[:id])
- if @page.nil?
- render_404
- return
- end
- if @wiki.page_found_with_redirect?
- redirect_to params.update(:id => @page.title)
- end
- end
-
- # Returns true if the current user is allowed to edit the page, otherwise false
- def editable?(page = @page)
- page.editable_by?(User.current)
- end
-
- # Returns the default content of a new wiki page
- def initial_page_content(page)
- helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
- extend helper unless self.instance_of?(helper)
- helper.instance_method(:initial_page_content).bind(self).call(page)
- end
-
- def load_pages_for_index
- @pages = @wiki.pages.with_updated_on.all(:order => 'title', :include => {:wiki => :project})
- end
- end
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