obsolete.ChilliProject/app/controllers/wiki_controller.rb

271 lines
9.2 KiB
Ruby

#-- encoding: UTF-8
#-- copyright
# ChiliProject is a project management system.
#
# Copyright (C) 2010-2013 the ChiliProject Team
#
# 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.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
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_page, :only => [:rename, :protect, :history, :diff, :annotate, :add_attachment, :destroy]
verify :method => :post, :only => [:protect], :redirect_to => { :action => :show }
include AttachmentsHelper
# 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
page_title = params[:id]
@page = @wiki.find_or_new_page(page_title)
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] == '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?
end
# edit an existing page or a new one
def edit
@page = @wiki.find_or_new_page(params[:id])
return render_403 unless editable?
@page.content = WikiContent.new(:page => @page) if @page.new_record?
@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.lock_version = @page.content.lock_version
end
verify :method => :put, :only => :update, :render => {:nothing => true, :status => :method_not_allowed }
# Creates a new page or updates an existing one
def update
@page = @wiki.find_or_new_page(params[:id])
return render_403 unless editable?
@page.content = WikiContent.new(:page => @page) if @page.new_record?
@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 if text wasn't changed
redirect_to :action => 'show', :project_id => @project, :id => @page.title
return
end
params[:content].delete(:version) # The version count is automatically increased
@content.attributes = params[:content]
@content.author = User.current
# if page is new @page.save will also save content, but not if page isn't a new record
if (@page.new_record? ? @page.save : @content.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
# Optimistic locking exception
flash.now[:error] = l(:notice_locking_conflict)
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, user_id, notes, created_at, 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
@editable = editable?
end
verify :method => :delete, :only => [:destroy], :redirect_to => { :action => :show }
# 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 html file
def export
if User.current.allowed_to?(:export_wiki_pages, @project)
@pages = @wiki.pages.find :all, :order => 'title'
export = render_to_string :action => 'export_multiple', :layout => false
send_data(export, :type => 'text/html', :filename => "wiki.html")
else
redirect_to :action => 'show', :project_id => @project, :id => nil
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 and returns a 404 error if it doesn't exist
def find_existing_page
@page = @wiki.find_page(params[:id])
render_404 if @page.nil?
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