jro_apps/redmine Commit - r4138:bbbfd4ee4cf3

1

# redMine - project management software

1

# redMine - project management software

2

3

#

3

#

4

# This program is free software; you can redistribute it and/or

4

# This program is free software; you can redistribute it and/or

5

# modify it under the terms of the GNU General Public License

5

# modify it under the terms of the GNU General Public License

6

# as published by the Free Software Foundation; either version 2

6

# as published by the Free Software Foundation; either version 2

7

# of the License, or (at your option) any later version.

7

# of the License, or (at your option) any later version.

8

#

8

#

9

# This program is distributed in the hope that it will be useful,

9

# This program is distributed in the hope that it will be useful,

10

# but WITHOUT ANY WARRANTY; without even the implied warranty of

10

# but WITHOUT ANY WARRANTY; without even the implied warranty of

11

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

11

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

12

# GNU General Public License for more details.

12

# GNU General Public License for more details.

13

#

13

#

14

# You should have received a copy of the GNU General Public License

14

# You should have received a copy of the GNU General Public License

15

# along with this program; if not, write to the Free Software

15

# along with this program; if not, write to the Free Software

16

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

16

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

17

18

require 'diff'

18

require 'diff'

19

20

class WikiController < ApplicationController

20

class WikiController < ApplicationController

21

default_search_scope :wiki_pages

21

default_search_scope :wiki_pages

22

before_filter :find_wiki, :authorize

22

before_filter :find_wiki, :authorize

23

before_filter :find_existing_page, :only => [:rename, :protect, :history, :diff, :annotate, :add_attachment, :destroy]

23

before_filter :find_existing_page, :only => [:rename, :protect, :history, :diff, :annotate, :add_attachment, :destroy]

24

25

verify :method => :post, :only => [:destroy, :protect], :redirect_to => { :action => :index }

25

verify :method => :post, :only => [:destroy, :protect], :redirect_to => { :action => :index }

26

27

helper :attachments

27

helper :attachments

28

include AttachmentsHelper

28

include AttachmentsHelper

29

helper :watchers

29

helper :watchers

30

31

# display a page (in editing mode if it doesn't exist)

31

# display a page (in editing mode if it doesn't exist)

32

def index

32

def index

33

page_title = params[:page]

33

page_title = params[:page]

34

@page = @wiki.find_or_new_page(page_title)

34

@page = @wiki.find_or_new_page(page_title)

35

if @page.new_record?

35

if @page.new_record?

36

if User.current.allowed_to?(:edit_wiki_pages, @project) && editable?

36

if User.current.allowed_to?(:edit_wiki_pages, @project) && editable?

37

edit

37

edit

38

render :action => 'edit'

38

render :action => 'edit'

39

else

39

else

40

render_404

40

render_404

41

end

41

end

42

return

42

return

43

end

43

end

44

if params[:version] && !User.current.allowed_to?(:view_wiki_edits, @project)

44

if params[:version] && !User.current.allowed_to?(:view_wiki_edits, @project)

45

# Redirects user to the current version if he's not allowed to view previous versions

45

# Redirects user to the current version if he's not allowed to view previous versions

46

redirect_to :version => nil

46

redirect_to :version => nil

47

return

47

return

48

end

48

end

49

@content = @page.content_for_version(params[:version])

49

@content = @page.content_for_version(params[:version])

50

if User.current.allowed_to?(:export_wiki_pages, @project)

50

if User.current.allowed_to?(:export_wiki_pages, @project)

51

if params[:format] == 'html'

51

if params[:format] == 'html'

52

export = render_to_string :action => 'export', :layout => false

52

export = render_to_string :action => 'export', :layout => false

53

send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")

53

send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")

54

return

54

return

55

elsif params[:format] == 'txt'

55

elsif params[:format] == 'txt'

56

send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")

56

send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")

57

return

57

return

58

end

58

end

59

end

59

end

60

@editable = editable?

60

@editable = editable?

61

render :action => 'show'

61

render :action => 'show'

62

end

62

end

63

64

# edit an existing page or a new one

64

# edit an existing page or a new one

65

def edit

65

def edit

66

@page = @wiki.find_or_new_page(params[:page])

66

@page = @wiki.find_or_new_page(params[:page])

67

return render_403 unless editable?

67

return render_403 unless editable?

68

@page.content = WikiContent.new(:page => @page) if @page.new_record?

68

@page.content = WikiContent.new(:page => @page) if @page.new_record?

69

70

@content = @page.content_for_version(params[:version])

70

@content = @page.content_for_version(params[:version])

71

@content.text = initial_page_content(@page) if @content.text.blank?

71

@content.text = initial_page_content(@page) if @content.text.blank?

72

# don't keep previous comment

72

# don't keep previous comment

73

@content.comments = nil

73

@content.comments = nil

74

if request.get?

74

if request.get?

75

# To prevent StaleObjectError exception when reverting to a previous version

75

# To prevent StaleObjectError exception when reverting to a previous version

76

@content.version = @page.content.version

76

@content.version = @page.content.version

77

else

77

else

78

if !@page.new_record? && @content.text == params[:content][:text]

78

if !@page.new_record? && @content.text == params[:content][:text]

79

attachments = Attachment.attach_files(@page, params[:attachments])

79

attachments = Attachment.attach_files(@page, params[:attachments])

80

render_attachment_warning_if_needed(@page)

80

render_attachment_warning_if_needed(@page)

81

# don't save if text wasn't changed

81

# don't save if text wasn't changed

82

redirect_to :action => 'index', :id => @project, :page => @page.title

82

redirect_to :action => 'index', :id => @project, :page => @page.title

83

return

83

return

84

end

84

end

85

#@content.text = params[:content][:text]

85

#@content.text = params[:content][:text]

86

#@content.comments = params[:content][:comments]

86

#@content.comments = params[:content][:comments]

87

@content.attributes = params[:content]

87

@content.attributes = params[:content]

88

@content.author = User.current

88

@content.author = User.current

89

# if page is new @page.save will also save content, but not if page isn't a new record

89

# if page is new @page.save will also save content, but not if page isn't a new record

90

if (@page.new_record? ? @page.save : @content.save)

90

if (@page.new_record? ? @page.save : @content.save)

91

attachments = Attachment.attach_files(@page, params[:attachments])

91

attachments = Attachment.attach_files(@page, params[:attachments])

92

render_attachment_warning_if_needed(@page)

92

render_attachment_warning_if_needed(@page)

93

call_hook(:controller_wiki_edit_after_save, { :params => params, :page => @page})

93

call_hook(:controller_wiki_edit_after_save, { :params => params, :page => @page})

94

redirect_to :action => 'index', :id => @project, :page => @page.title

94

redirect_to :action => 'index', :id => @project, :page => @page.title

95

end

95

end

96

end

96

end

97

rescue ActiveRecord::StaleObjectError

97

rescue ActiveRecord::StaleObjectError

98

# Optimistic locking exception

98

# Optimistic locking exception

99

flash[:error] = l(:notice_locking_conflict)

99

flash[:error] = l(:notice_locking_conflict)

100

end

100

end

101

102

# rename a page

102

# rename a page

103

def rename

103

def rename

104

return render_403 unless editable?

104

return render_403 unless editable?

105

@page.redirect_existing_links = true

105

@page.redirect_existing_links = true

106

# used to display the *original* title if some AR validation errors occur

106

# used to display the *original* title if some AR validation errors occur

107

@original_title = @page.pretty_title

107

@original_title = @page.pretty_title

108

if request.post? && @page.update_attributes(params[:wiki_page])

108

if request.post? && @page.update_attributes(params[:wiki_page])

109

flash[:notice] = l(:notice_successful_update)

109

flash[:notice] = l(:notice_successful_update)

110

redirect_to :action => 'index', :id => @project, :page => @page.title

110

redirect_to :action => 'index', :id => @project, :page => @page.title

111

end

111

end

112

end

112

end

113

114

def protect

114

def protect

115

@page.update_attribute :protected, params[:protected]

115

@page.update_attribute :protected, params[:protected]

116

redirect_to :action => 'index', :id => @project, :page => @page.title

116

redirect_to :action => 'index', :id => @project, :page => @page.title

117

end

117

end

118

119

# show page history

119

# show page history

120

def history

120

def history

121

@version_count = @page.content.versions.count

121

@version_count = @page.content.versions.count

122

@version_pages = Paginator.new self, @version_count, per_page_option, params['p']

122

@version_pages = Paginator.new self, @version_count, per_page_option, params['p']

123

# don't load text

123

# don't load text

124

@versions = @page.content.versions.find :all,

124

@versions = @page.content.versions.find :all,

125

:select => "id, author_id, comments, updated_on, version",

125

:select => "id, author_id, comments, updated_on, version",

126

:order => 'version DESC',

126

:order => 'version DESC',

127

:limit => @version_pages.items_per_page + 1,

127

:limit => @version_pages.items_per_page + 1,

128

:offset => @version_pages.current.offset

128

:offset => @version_pages.current.offset

129

130

render :layout => false if request.xhr?

130

render :layout => false if request.xhr?

131

end

131

end

132

133

def diff

133

def diff

134

@diff = @page.diff(params[:version], params[:version_from])

134

@diff = @page.diff(params[:version], params[:version_from])

135

render_404 unless @diff

135

render_404 unless @diff

136

end

136

end

137

138

def annotate

138

def annotate

139

@annotate = @page.annotate(params[:version])

139

@annotate = @page.annotate(params[:version])

140

render_404 unless @annotate

140

render_404 unless @annotate

141

end

141

end

142

143

# Removes a wiki page and its history

143

# Removes a wiki page and its history

144

# Children can be either set as root pages, removed or reassigned to another parent page

144

# Children can be either set as root pages, removed or reassigned to another parent page

145

def destroy

145

def destroy

146

return render_403 unless editable?

146

return render_403 unless editable?

147

148

@descendants_count = @page.descendants.size

148

@descendants_count = @page.descendants.size

149

if @descendants_count > 0

149

if @descendants_count > 0

150

case params[:todo]

150

case params[:todo]

151

when 'nullify'

151

when 'nullify'

152

# Nothing to do

152

# Nothing to do

153

when 'destroy'

153

when 'destroy'

154

# Removes all its descendants

154

# Removes all its descendants

155

@page.descendants.each(&:destroy)

155

@page.descendants.each(&:destroy)

156

when 'reassign'

156

when 'reassign'

157

# Reassign children to another parent page

157

# Reassign children to another parent page

158

reassign_to = @wiki.pages.find_by_id(params[:reassign_to_id].to_i)

158

reassign_to = @wiki.pages.find_by_id(params[:reassign_to_id].to_i)

159

return unless reassign_to

159

return unless reassign_to

160

@page.children.each do |child|

160

@page.children.each do |child|

161

child.update_attribute(:parent, reassign_to)

161

child.update_attribute(:parent, reassign_to)

162

end

162

end

163

else

163

else

164

@reassignable_to = @wiki.pages - @page.self_and_descendants

164

@reassignable_to = @wiki.pages - @page.self_and_descendants

165

return

165

return

166

end

166

end

167

end

167

end

168

@page.destroy

168

@page.destroy

169

redirect_to :action => 'special', :id => @project, :page => 'Page_index'

169

redirect_to :action => 'special', :id => @project, :page => 'Page_index'

170

end

170

end

171

172

# display special pages

172

# display special pages

173

def special

173

def special

174

page_title = params[:page].downcase

174

page_title = params[:page].downcase

175

case page_title

175

case page_title

176

# show pages index, sorted by title

176

# show pages index, sorted by title

177

when 'page_index', 'date_index'

177

when 'page_index', 'date_index'

178

# eager load information about last updates, without loading text

178

load_pages_grouped_by_date_without_content

179

@pages = @wiki.pages.find :all, :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on",

180

:joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id",

181

:order => 'title'

182

@pages_by_date = @pages.group_by {|p| p.updated_on.to_date}

183

@pages_by_parent_id = @pages.group_by(&:parent_id)

184

when 'export'

179

when 'export'

185

redirect_to :action => 'export', :id => @project # Compatibility stub while refactoring

180

redirect_to :action => 'export', :id => @project # Compatibility stub while refactoring

186

return

181

return

187

else

182

else

188

# requested special page doesn't exist, redirect to default page

183

# requested special page doesn't exist, redirect to default page

189

redirect_to :action => 'index', :id => @project, :page => nil

184

redirect_to :action => 'index', :id => @project, :page => nil

190

return

185

return

191

end

186

end

192

render :action => "special_#{page_title}"

187

render :action => "special_#{page_title}"

193

end

188

end

194

189

195

# Export wiki to a single html file

190

# Export wiki to a single html file

196

def export

191

def export

197

if User.current.allowed_to?(:export_wiki_pages, @project)

192

if User.current.allowed_to?(:export_wiki_pages, @project)

198

@pages = @wiki.pages.find :all, :order => 'title'

193

@pages = @wiki.pages.find :all, :order => 'title'

199

export = render_to_string :action => 'export_multiple', :layout => false

194

export = render_to_string :action => 'export_multiple', :layout => false

200

send_data(export, :type => 'text/html', :filename => "wiki.html")

195

send_data(export, :type => 'text/html', :filename => "wiki.html")

201

else

196

else

202

redirect_to :action => 'index', :id => @project, :page => nil

197

redirect_to :action => 'index', :id => @project, :page => nil

203

end

198

end

204

end

199

end

205

200

206

def preview

201

def preview

207

page = @wiki.find_page(params[:page])

202

page = @wiki.find_page(params[:page])

208

# page is nil when previewing a new page

203

# page is nil when previewing a new page

209

return render_403 unless page.nil? || editable?(page)

204

return render_403 unless page.nil? || editable?(page)

210

if page

205

if page

211

@attachements = page.attachments

206

@attachements = page.attachments

212

@previewed = page.content

207

@previewed = page.content

213

end

208

end

214

@text = params[:content][:text]

209

@text = params[:content][:text]

215

render :partial => 'common/preview'

210

render :partial => 'common/preview'

216

end

211

end

217

212

218

def add_attachment

213

def add_attachment

219

return render_403 unless editable?

214

return render_403 unless editable?

220

attachments = Attachment.attach_files(@page, params[:attachments])

215

attachments = Attachment.attach_files(@page, params[:attachments])

221

render_attachment_warning_if_needed(@page)

216

render_attachment_warning_if_needed(@page)

222

redirect_to :action => 'index', :page => @page.title

217

redirect_to :action => 'index', :page => @page.title

223

end

218

end

224

219

225

private

220

private

226

221

227

def find_wiki

222

def find_wiki

228

@project = Project.find(params[:id])

223

@project = Project.find(params[:id])

229

@wiki = @project.wiki

224

@wiki = @project.wiki

230

render_404 unless @wiki

225

render_404 unless @wiki

231

rescue ActiveRecord::RecordNotFound

226

rescue ActiveRecord::RecordNotFound

232

render_404

227

render_404

233

end

228

end

234

229

235

# Finds the requested page and returns a 404 error if it doesn't exist

230

# Finds the requested page and returns a 404 error if it doesn't exist

236

def find_existing_page

231

def find_existing_page

237

@page = @wiki.find_page(params[:page])

232

@page = @wiki.find_page(params[:page])

238

render_404 if @page.nil?

233

render_404 if @page.nil?

239

end

234

end

240

235

241

# Returns true if the current user is allowed to edit the page, otherwise false

236

# Returns true if the current user is allowed to edit the page, otherwise false

242

def editable?(page = @page)

237

def editable?(page = @page)

243

page.editable_by?(User.current)

238

page.editable_by?(User.current)

244

end

239

end

245

240

246

# Returns the default content of a new wiki page

241

# Returns the default content of a new wiki page

247

def initial_page_content(page)

242

def initial_page_content(page)

248

helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)

243

helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)

249

extend helper unless self.instance_of?(helper)

244

extend helper unless self.instance_of?(helper)

250

helper.instance_method(:initial_page_content).bind(self).call(page)

245

helper.instance_method(:initial_page_content).bind(self).call(page)

251

end

246

end

247

248

# eager load information about last updates, without loading text

249

def load_pages_grouped_by_date_without_content

250

@pages = @wiki.pages.find :all, :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on",

251

:joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id",

252

:order => 'title'

253

@pages_by_date = @pages.group_by {|p| p.updated_on.to_date}

254

@pages_by_parent_id = @pages.group_by(&:parent_id)

255

end

256

252

end

257

end

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

             # redMine - project management software
             # Copyright (C) 2006-2007  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'
             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 => [:destroy, :protect], :redirect_to => { :action => :index }
               helper :attachments
               include AttachmentsHelper
               helper :watchers
               # display a page (in editing mode if it doesn't exist)
               def index
                 page_title = params[:page]
                 @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?
                 render :action => 'show'
               end
               # edit an existing page or a new one
               def edit
                 @page = @wiki.find_or_new_page(params[:page])
                 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 request.get?
                   # To prevent StaleObjectError exception when reverting to a previous version
                   @content.version = @page.content.version
                 else
                   if !@page.new_record? && @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 => 'index', :id => @project, :page => @page.title
                     return
                   end
                   #@content.text = params[:content][:text]
                   #@content.comments = params[:content][:comments]
                   @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 => 'index', :id => @project, :page => @page.title
                   end
                 end
               rescue ActiveRecord::StaleObjectError
                 # Optimistic locking exception
                 flash[:error] = l(:notice_locking_conflict)
               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 => 'index', :id => @project, :page => @page.title
                 end
               end
               def protect
                 @page.update_attribute :protected, params[:protected]
                 redirect_to :action => 'index', :id => @project, :page => @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 => 'special', :id => @project, :page => 'Page_index'
               end
               # display special pages
               def special
                 page_title = params[:page].downcase
                 case page_title
                 # show pages index, sorted by title
                 when 'page_index', 'date_index'
-                  # eager load information about last updates, without loading text
+                  load_pages_grouped_by_date_without_content
-                  @pages = @wiki.pages.find :all, :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on",
-                                                  :joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id",
-                                                  :order => 'title'
-                  @pages_by_date = @pages.group_by {|p| p.updated_on.to_date}
-                  @pages_by_parent_id = @pages.group_by(&:parent_id)
                 when 'export'
                   redirect_to :action => 'export', :id => @project # Compatibility stub while refactoring
                   return
                 else
                   # requested special page doesn't exist, redirect to default page
                   redirect_to :action => 'index', :id => @project, :page => nil
                   return
                 end
                 render :action => "special_#{page_title}"
               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 => 'index', :id => @project, :page => nil
                 end
               end
               def preview
                 page = @wiki.find_page(params[:page])
                 # 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 => 'index', :page => @page.title
               end
             private
               def find_wiki
                 @project = Project.find(params[: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[:page])
                 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
+              # eager load information about last updates, without loading text
+              def load_pages_grouped_by_date_without_content
+                @pages = @wiki.pages.find :all, :select => "#{WikiPage.table_name}.*, #{WikiContent.table_name}.updated_on",
+                                                :joins => "LEFT JOIN #{WikiContent.table_name} ON #{WikiContent.table_name}.page_id = #{WikiPage.table_name}.id",
+                                                :order => 'title'
+                @pages_by_date = @pages.group_by {|p| p.updated_on.to_date}
+                @pages_by_parent_id = @pages.group_by(&:parent_id)
+              end
             end