File: app/helpers/application_helper.rb

Overview
Module Structure
Code

Overview

Module Structure

  module: <Toplevel Module>
  module: ApplicationHelper#23
extends
  Forwardable   
includes
  PublicMethods ( GravatarHelper )
  I18n ( Redmine )
  Definitions ( Redmine::WikiFormatting::Macros )
has properties
method: authorize_for / 2 #32
method: link_to_if_authorized / 4 #42
method: link_to_remote_if_authorized / 3 #47
method: link_to_user / 2 #53
method: link_to_issue / 2 #74
method: link_to_attachment / 2 #97
method: link_to_revision / 3 #112
method: link_to_message / 3 #126
method: link_to_project / 3 #147
method: toggle_link / 3 #156
method: image_to_function / 3 #163
method: prompt_to_remote / 5 #171
method: format_activity_title / 1 #176
method: format_activity_day / 1 #180
method: format_activity_description / 1 #184
method: format_version_name / 1 #189
method: due_date_distance_in_words / 1 #197
method: render_page_hierarchy / 3 #203
method: render_flash_messages #220
method: render_tabs / 1 #229
method: render_project_jump_box #238
method: project_tree_options_for_select / 2 #253
method: project_tree / 2 #272
method: project_nested_ul / 2 #276
method: principals_check_box_tags / 2 #300
method: principals_options_for_select / 2 #309
method: truncate_single_line / 2 #326
method: truncate_lines / 2 #331
method: anchor / 1 #340
method: html_hours / 1 #344
method: authoring / 3 #348
method: time_tag / 1 #352
method: syntax_highlight_lines / 2 #361
method: syntax_highlight / 2 #367
method: to_path_param / 1 #371
method: pagination_links_full / 3 #375
method: per_page_links / 1 #409
method: reorder_links / 3 #416
method: breadcrumb / 1 #431
method: other_formats_links / 1 #436
method: page_header_title #442
method: html_title / 1 #462
method: body_css_classes #476
method: accesskey / 1 #487
method: textilizable / 1 #495
method: parse_non_pre_blocks / 1 #533
method: parse_inline_attachments / 6 #562
method: parse_wiki_links / 6 #594
method: parse_redmine_links / 6 #670
constant: HEADING_RE #802
method: parse_sections / 6 #804
method: parse_headings / 6 #822
constant: MACROS_RE #841
method: parse_macros / 6 #852
constant: TOC_RE #868
method: replace_toc / 2 #871
method: simple_format_without_paragraph / 1 #902
method: lang_options_for_select / 1 #910
method: label_tag_for / 3 #915
method: labelled_tabular_form_for / 2 #920
method: labelled_form_for / 2 #930
method: labelled_fields_for / 2 #937
method: labelled_remote_form_for / 2 #944
method: error_messages_for / 1 #951
method: back_url_hidden_field_tag #965
method: check_all_links / 1 #971
method: progress_bar / 2 #977
method: checked_image / 1 #993
method: context_menu / 1 #999
method: calendar_for / 1 #1015
method: include_calendar_headers_tags #1021
method: content_for / 3 #1045
method: has_content? / 1 #1051
method: email_delivery_enabled? #1055
method: avatar / 2 #1061
method: sanitize_anchor_name / 1 #1076
method: javascript_heads #1081
method: favicon #1089
method: robot_exclusion_tag #1093
method: include_in_api_response? / 1 #1098
method: api_meta / 1 #1109
method: wiki_helper #1121
method: link_to_content_update / 3 #1127

Code

   1  # encoding: utf-8
   2  #
   3  # Redmine - project management software
   4  # Copyright (C) 2006-2011  Jean-Philippe Lang
   5  #
   6  # This program is free software; you can redistribute it and/or
   7  # modify it under the terms of the GNU General Public License
   8  # as published by the Free Software Foundation; either version 2
   9  # of the License, or (at your option) any later version.
  10  #
  11  # This program is distributed in the hope that it will be useful,
  12  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  # GNU General Public License for more details.
  15  #
  16  # You should have received a copy of the GNU General Public License
  17  # along with this program; if not, write to the Free Software
  18  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 
  20  require 'forwardable'
  21  require 'cgi'
  22 
  23  module ApplicationHelper
  24    include Redmine::WikiFormatting::Macros::Definitions
  25    include Redmine::I18n
  26    include GravatarHelper::PublicMethods
  27 
  28    extend Forwardable
  29    def_delegators :wiki_helper, :wikitoolbar_for, :heads_for_wiki_formatter
  30 
  31    # Return true if user is authorized for controller/action, otherwise false
  32    def authorize_for(controller, action)
  33      User.current.allowed_to?({:controller => controller, :action => action}, @project)
  34    end
  35 
  36    # Display a link if user is authorized
  37    #
  38    # @param [String] name Anchor text (passed to link_to)
  39    # @param [Hash] options Hash params. This will checked by authorize_for to see if the user is authorized
  40    # @param [optional, Hash] html_options Options passed to link_to
  41    # @param [optional, Hash] parameters_for_method_reference Extra parameters for link_to
  42    def link_to_if_authorized(name, options = {}, html_options = nil, *parameters_for_method_reference)
  43      link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for(options[:controller] || params[:controller], options[:action])
  44    end
  45 
  46    # Display a link to remote if user is authorized
  47    def link_to_remote_if_authorized(name, options = {}, html_options = nil)
  48      url = options[:url] || {}
  49      link_to_remote(name, options, html_options) if authorize_for(url[:controller] || params[:controller], url[:action])
  50    end
  51 
  52    # Displays a link to user's account page if active
  53    def link_to_user(user, options={})
  54      if user.is_a?(User)
  55        name = h(user.name(options[:format]))
  56        if user.active?
  57          link_to name, :controller => 'users', :action => 'show', :id => user
  58        else
  59          name
  60        end
  61      else
  62        h(user.to_s)
  63      end
  64    end
  65 
  66    # Displays a link to +issue+ with its subject.
  67    # Examples:
  68    #
  69    #   link_to_issue(issue)                        # => Defect #6: This is the subject
  70    #   link_to_issue(issue, :truncate => 6)        # => Defect #6: This i...
  71    #   link_to_issue(issue, :subject => false)     # => Defect #6
  72    #   link_to_issue(issue, :project => true)      # => Foo - Defect #6
  73    #
  74    def link_to_issue(issue, options={})
  75      title = nil
  76      subject = nil
  77      if options[:subject] == false
  78        title = truncate(issue.subject, :length => 60)
  79      else
  80        subject = issue.subject
  81        if options[:truncate]
  82          subject = truncate(subject, :length => options[:truncate])
  83        end
  84      end
  85      s = link_to "#{h(issue.tracker)} ##{issue.id}", {:controller => "issues", :action => "show", :id => issue},
  86                                                   :class => issue.css_classes,
  87                                                   :title => title
  88      s << h(": #{subject}") if subject
  89      s = h("#{issue.project} - ") + s if options[:project]
  90      s
  91    end
  92 
  93    # Generates a link to an attachment.
  94    # Options:
  95    # * :text - Link text (default to attachment filename)
  96    # * :download - Force download (default: false)
  97    def link_to_attachment(attachment, options={})
  98      text = options.delete(:text) || attachment.filename
  99      action = options.delete(:download) ? 'download' : 'show'
 100      opt_only_path = {}
 101      opt_only_path[:only_path] = (options[:only_path] == false ? false : true)
 102      options.delete(:only_path)
 103      link_to(h(text),
 104             {:controller => 'attachments', :action => action,
 105              :id => attachment, :filename => attachment.filename}.merge(opt_only_path),
 106             options)
 107    end
 108 
 109    # Generates a link to a SCM revision
 110    # Options:
 111    # * :text - Link text (default to the formatted revision)
 112    def link_to_revision(revision, repository, options={})
 113      if repository.is_a?(Project)
 114        repository = repository.repository
 115      end
 116      text = options.delete(:text) || format_revision(revision)
 117      rev = revision.respond_to?(:identifier) ? revision.identifier : revision
 118      link_to(
 119          h(text),
 120          {:controller => 'repositories', :action => 'revision', :id => repository.project, :repository_id => repository.identifier_param, :rev => rev},
 121          :title => l(:label_revision_id, format_revision(revision))
 122        )
 123    end
 124 
 125    # Generates a link to a message
 126    def link_to_message(message, options={}, html_options = nil)
 127      link_to(
 128        h(truncate(message.subject, :length => 60)),
 129        { :controller => 'messages', :action => 'show',
 130          :board_id => message.board_id,
 131          :id => message.root,
 132          :r => (message.parent_id && message.id),
 133          :anchor => (message.parent_id ? "message-#{message.id}" : nil)
 134        }.merge(options),
 135        html_options
 136      )
 137    end
 138 
 139    # Generates a link to a project if active
 140    # Examples:
 141    #
 142    #   link_to_project(project)                          # => link to the specified project overview
 143    #   link_to_project(project, :action=>'settings')     # => link to project settings
 144    #   link_to_project(project, {:only_path => false}, :class => "project") # => 3rd arg adds html options
 145    #   link_to_project(project, {}, :class => "project") # => html options with default url (project overview)
 146    #
 147    def link_to_project(project, options={}, html_options = nil)
 148      if project.active?
 149        url = {:controller => 'projects', :action => 'show', :id => project}.merge(options)
 150        link_to(h(project), url, html_options)
 151      else
 152        h(project)
 153      end
 154    end
 155 
 156    def toggle_link(name, id, options={})
 157      onclick = "Element.toggle('#{id}'); "
 158      onclick << (options[:focus] ? "Form.Element.focus('#{options[:focus]}'); " : "this.blur(); ")
 159      onclick << "return false;"
 160      link_to(name, "#", :onclick => onclick)
 161    end
 162 
 163    def image_to_function(name, function, html_options = {})
 164      html_options.symbolize_keys!
 165      tag(:input, html_options.merge({
 166          :type => "image", :src => image_path(name),
 167          :onclick => (html_options[:onclick] ? "#{html_options[:onclick]}; " : "") + "#{function};"
 168          }))
 169    end
 170 
 171    def prompt_to_remote(name, text, param, url, html_options = {})
 172      html_options[:onclick] = "promptToRemote('#{text}', '#{param}', '#{url_for(url)}'); return false;"
 173      link_to name, {}, html_options
 174    end
 175 
 176    def format_activity_title(text)
 177      h(truncate_single_line(text, :length => 100))
 178    end
 179 
 180    def format_activity_day(date)
 181      date == Date.today ? l(:label_today).titleize : format_date(date)
 182    end
 183 
 184    def format_activity_description(text)
 185      h(truncate(text.to_s, :length => 120).gsub(%r{[\r\n]*<(pre|code)>.*$}m, '...')
 186         ).gsub(/[\r\n]+/, "<br />").html_safe
 187    end
 188 
 189    def format_version_name(version)
 190      if version.project == @project
 191          h(version)
 192      else
 193        h("#{version.project} - #{version}")
 194      end
 195    end
 196 
 197    def due_date_distance_in_words(date)
 198      if date
 199        l((date < Date.today ? :label_roadmap_overdue : :label_roadmap_due_in), distance_of_date_in_words(Date.today, date))
 200      end
 201    end
 202 
 203    def render_page_hierarchy(pages, node=nil, options={})
 204      content = ''
 205      if pages[node]
 206        content << "<ul class=\"pages-hierarchy\">\n"
 207        pages[node].each do |page|
 208          content << "<li>"
 209          content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title},
 210                             :title => (options[:timestamp] && page.updated_on ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
 211          content << "\n" + render_page_hierarchy(pages, page.id, options) if pages[page.id]
 212          content << "</li>\n"
 213        end
 214        content << "</ul>\n"
 215      end
 216      content.html_safe
 217    end
 218 
 219    # Renders flash messages
 220    def render_flash_messages
 221      s = ''
 222      flash.each do |k,v|
 223        s << (content_tag('div', v.html_safe, :class => "flash #{k}"))
 224      end
 225      s.html_safe
 226    end
 227 
 228    # Renders tabs and their content
 229    def render_tabs(tabs)
 230      if tabs.any?
 231        render :partial => 'common/tabs', :locals => {:tabs => tabs}
 232      else
 233        content_tag 'p', l(:label_no_data), :class => "nodata"
 234      end
 235    end
 236 
 237    # Renders the project quick-jump box
 238    def render_project_jump_box
 239      return unless User.current.logged?
 240      projects = User.current.memberships.collect(&:project).compact.uniq
 241      if projects.any?
 242        s = '<select onchange="if (this.value != \'\') { window.location = this.value; }">' +
 243              "<option value=''>#{ l(:label_jump_to_a_project) }</option>" +
 244              '<option value="" disabled="disabled">---</option>'
 245        s << project_tree_options_for_select(projects, :selected => @project) do |p|
 246          { :value => url_for(:controller => 'projects', :action => 'show', :id => p, :jump => current_menu_item) }
 247        end
 248        s << '</select>'
 249        s.html_safe
 250      end
 251    end
 252 
 253    def project_tree_options_for_select(projects, options = {})
 254      s = ''
 255      project_tree(projects) do |project, level|
 256        name_prefix = (level > 0 ? ('&nbsp;' * 2 * level + '&#187; ').html_safe : '')
 257        tag_options = {:value => project.id}
 258        if project == options[:selected] || (options[:selected].respond_to?(:include?) && options[:selected].include?(project))
 259          tag_options[:selected] = 'selected'
 260        else
 261          tag_options[:selected] = nil
 262        end
 263        tag_options.merge!(yield(project)) if block_given?
 264        s << content_tag('option', name_prefix + h(project), tag_options)
 265      end
 266      s.html_safe
 267    end
 268 
 269    # Yields the given block for each project with its level in the tree
 270    #
 271    # Wrapper for Project#project_tree
 272    def project_tree(projects, &block)
 273      Project.project_tree(projects, &block)
 274    end
 275 
 276    def project_nested_ul(projects, &block)
 277      s = ''
 278      if projects.any?
 279        ancestors = []
 280        projects.sort_by(&:lft).each do |project|
 281          if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
 282            s << "<ul>\n"
 283          else
 284            ancestors.pop
 285            s << "</li>"
 286            while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
 287              ancestors.pop
 288              s << "</ul></li>\n"
 289            end
 290          end
 291          s << "<li>"
 292          s << yield(project).to_s
 293          ancestors << project
 294        end
 295        s << ("</li></ul>\n" * ancestors.size)
 296      end
 297      s.html_safe
 298    end
 299 
 300    def principals_check_box_tags(name, principals)
 301      s = ''
 302      principals.sort.each do |principal|
 303        s << "<label>#{ check_box_tag name, principal.id, false } #{h principal}</label>\n"
 304      end
 305      s.html_safe
 306    end
 307 
 308    # Returns a string for users/groups option tags
 309    def principals_options_for_select(collection, selected=nil)
 310      s = ''
 311      if collection.include?(User.current)
 312        s << content_tag('option', "<< #{l(:label_me)} >>".html_safe, :value => User.current.id)
 313      end
 314      groups = ''
 315      collection.sort.each do |element|
 316        selected_attribute = ' selected="selected"' if option_value_selected?(element, selected)
 317        (element.is_a?(Group) ? groups : s) << %(<option value="#{element.id}"#{selected_attribute}>#{h element.name}</option>)
 318      end
 319      unless groups.empty?
 320        s << %(<optgroup label="#{h(l(:label_group_plural))}">#{groups}</optgroup>)
 321      end
 322      s
 323    end
 324 
 325    # Truncates and returns the string as a single line
 326    def truncate_single_line(string, *args)
 327      truncate(string.to_s, *args).gsub(%r{[\r\n]+}m, ' ')
 328    end
 329 
 330    # Truncates at line break after 250 characters or options[:length]
 331    def truncate_lines(string, options={})
 332      length = options[:length] || 250
 333      if string.to_s =~ /\A(.{#{length}}.*?)$/m
 334        "#{$1}..."
 335      else
 336        string
 337      end
 338    end
 339 
 340    def anchor(text)
 341      text.to_s.gsub(' ', '_')
 342    end
 343 
 344    def html_hours(text)
 345      text.gsub(%r{(\d+)\.(\d+)}, '<span class="hours hours-int">\1</span><span class="hours hours-dec">.\2</span>').html_safe
 346    end
 347 
 348    def authoring(created, author, options={})
 349      l(options[:label] || :label_added_time_by, :author => link_to_user(author), :age => time_tag(created)).html_safe
 350    end
 351 
 352    def time_tag(time)
 353      text = distance_of_time_in_words(Time.now, time)
 354      if @project
 355        link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => time.to_date}, :title => format_time(time))
 356      else
 357        content_tag('acronym', text, :title => format_time(time))
 358      end
 359    end
 360 
 361    def syntax_highlight_lines(name, content)
 362      lines = []
 363      syntax_highlight(name, content).each_line { |line| lines << line }
 364      lines
 365    end
 366 
 367    def syntax_highlight(name, content)
 368      Redmine::SyntaxHighlighting.highlight_by_filename(content, name)
 369    end
 370 
 371    def to_path_param(path)
 372      path.to_s.split(%r{[/\\]}).select {|p| !p.blank?}
 373    end
 374 
 375    def pagination_links_full(paginator, count=nil, options={})
 376      page_param = options.delete(:page_param) || :page
 377      per_page_links = options.delete(:per_page_links)
 378      url_param = params.dup
 379 
 380      html = ''
 381      if paginator.current.previous
 382        # \xc2\xab(utf-8) = &#171;
 383        html << link_to_content_update(
 384                     "\xc2\xab " + l(:label_previous),
 385                     url_param.merge(page_param => paginator.current.previous)) + ' '
 386      end
 387 
 388      html << (pagination_links_each(paginator, options) do |n|
 389        link_to_content_update(n.to_s, url_param.merge(page_param => n))
 390      end || '')
 391 
 392      if paginator.current.next
 393        # \xc2\xbb(utf-8) = &#187;
 394        html << ' ' + link_to_content_update(
 395                        (l(:label_next) + " \xc2\xbb"),
 396                        url_param.merge(page_param => paginator.current.next))
 397      end
 398 
 399      unless count.nil?
 400        html << " (#{paginator.current.first_item}-#{paginator.current.last_item}/#{count})"
 401        if per_page_links != false && links = per_page_links(paginator.items_per_page)
 402                html << " | #{links}"
 403        end
 404      end
 405 
 406      html.html_safe
 407    end
 408 
 409    def per_page_links(selected=nil)
 410      links = Setting.per_page_options_array.collect do |n|
 411        n == selected ? n : link_to_content_update(n, params.merge(:per_page => n))
 412      end
 413      links.size > 1 ? l(:label_display_per_page, links.join(', ')) : nil
 414    end
 415 
 416    def reorder_links(name, url, method = :post)
 417      link_to(image_tag('2uparrow.png', :alt => l(:label_sort_highest)),
 418              url.merge({"#{name}[move_to]" => 'highest'}),
 419              :method => method, :title => l(:label_sort_highest)) +
 420      link_to(image_tag('1uparrow.png',   :alt => l(:label_sort_higher)),
 421              url.merge({"#{name}[move_to]" => 'higher'}),
 422             :method => method, :title => l(:label_sort_higher)) +
 423      link_to(image_tag('1downarrow.png', :alt => l(:label_sort_lower)),
 424              url.merge({"#{name}[move_to]" => 'lower'}),
 425              :method => method, :title => l(:label_sort_lower)) +
 426      link_to(image_tag('2downarrow.png', :alt => l(:label_sort_lowest)),
 427              url.merge({"#{name}[move_to]" => 'lowest'}),
 428             :method => method, :title => l(:label_sort_lowest))
 429    end
 430 
 431    def breadcrumb(*args)
 432      elements = args.flatten
 433      elements.any? ? content_tag('p', (args.join(" \xc2\xbb ") + " \xc2\xbb ").html_safe, :class => 'breadcrumb') : nil
 434    end
 435 
 436    def other_formats_links(&block)
 437      concat('<p class="other-formats">'.html_safe + l(:label_export_to))
 438      yield Redmine::Views::OtherFormatsBuilder.new(self)
 439      concat('</p>'.html_safe)
 440    end
 441 
 442    def page_header_title
 443      if @project.nil? || @project.new_record?
 444        h(Setting.app_title)
 445      else
 446        b = []
 447        ancestors = (@project.root? ? [] : @project.ancestors.visible.all)
 448        if ancestors.any?
 449          root = ancestors.shift
 450          b << link_to_project(root, {:jump => current_menu_item}, :class => 'root')
 451          if ancestors.size > 2
 452            b << "\xe2\x80\xa6"
 453            ancestors = ancestors[-2, 2]
 454          end
 455          b += ancestors.collect {|p| link_to_project(p, {:jump => current_menu_item}, :class => 'ancestor') }
 456        end
 457        b << h(@project)
 458        b.join(" \xc2\xbb ").html_safe
 459      end
 460    end
 461 
 462    def html_title(*args)
 463      if args.empty?
 464        title = @html_title || []
 465        title << @project.name if @project
 466        title << Setting.app_title unless Setting.app_title == title.last
 467        title.select {|t| !t.blank? }.join(' - ')
 468      else
 469        @html_title ||= []
 470        @html_title += args
 471      end
 472    end
 473 
 474    # Returns the theme, controller name, and action as css classes for the
 475    # HTML body.
 476    def body_css_classes
 477      css = []
 478      if theme = Redmine::Themes.theme(Setting.ui_theme)
 479        css << 'theme-' + theme.name
 480      end
 481 
 482      css << 'controller-' + controller_name
 483      css << 'action-' + action_name
 484      css.join(' ')
 485    end
 486 
 487    def accesskey(s)
 488      Redmine::AccessKeys.key_for s
 489    end
 490 
 491    # Formats text according to system settings.
 492    # 2 ways to call this method:
 493    # * with a String: textilizable(text, options)
 494    # * with an object and one of its attribute: textilizable(issue, :description, options)
 495    def textilizable(*args)
 496      options = args.last.is_a?(Hash) ? args.pop : {}
 497      case args.size
 498      when 1
 499        obj = options[:object]
 500        text = args.shift
 501      when 2
 502        obj = args.shift
 503        attr = args.shift
 504        text = obj.send(attr).to_s
 505      else
 506        raise ArgumentError, 'invalid arguments to textilizable'
 507      end
 508      return '' if text.blank?
 509      project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
 510      only_path = options.delete(:only_path) == false ? false : true
 511 
 512      text = Redmine::WikiFormatting.to_html(Setting.text_formatting, text, :object => obj, :attribute => attr)
 513 
 514      @parsed_headings = []
 515      @heading_anchors = {}
 516      @current_section = 0 if options[:edit_section_links]
 517 
 518      parse_sections(text, project, obj, attr, only_path, options)
 519      text = parse_non_pre_blocks(text) do |text|
 520        [:parse_inline_attachments, :parse_wiki_links, :parse_redmine_links, :parse_macros].each do |method_name|
 521          send method_name, text, project, obj, attr, only_path, options
 522        end
 523      end
 524      parse_headings(text, project, obj, attr, only_path, options)
 525 
 526      if @parsed_headings.any?
 527        replace_toc(text, @parsed_headings)
 528      end
 529 
 530      text.html_safe
 531    end
 532 
 533    def parse_non_pre_blocks(text)
 534      s = StringScanner.new(text)
 535      tags = []
 536      parsed = ''
 537      while !s.eos?
 538        s.scan(/(.*?)(<(\/)?(pre|code)(.*?)>|\z)/im)
 539        text, full_tag, closing, tag = s[1], s[2], s[3], s[4]
 540        if tags.empty?
 541          yield text
 542        end
 543        parsed << text
 544        if tag
 545          if closing
 546            if tags.last == tag.downcase
 547              tags.pop
 548            end
 549          else
 550            tags << tag.downcase
 551          end
 552          parsed << full_tag
 553        end
 554      end
 555      # Close any non closing tags
 556      while tag = tags.pop
 557        parsed << "</#{tag}>"
 558      end
 559      parsed
 560    end
 561 
 562    def parse_inline_attachments(text, project, obj, attr, only_path, options)
 563      # when using an image link, try to use an attachment, if possible
 564      if options[:attachments] || (obj && obj.respond_to?(:attachments))
 565        attachments = options[:attachments] || obj.attachments
 566        text.gsub!(/src="([^\/"]+\.(bmp|gif|jpg|jpe|jpeg|png))"(\s+alt="([^"]*)")?/i) do |m|
 567          filename, ext, alt, alttext = $1.downcase, $2, $3, $4
 568          # search for the picture in attachments
 569          if found = Attachment.latest_attach(attachments, filename)
 570            image_url = url_for :only_path => only_path, :controller => 'attachments',
 571                                :action => 'download', :id => found
 572            desc = found.description.to_s.gsub('"', '')
 573            if !desc.blank? && alttext.blank?
 574              alt = " title=\"#{desc}\" alt=\"#{desc}\""
 575            end
 576            "src=\"#{image_url}\"#{alt}"
 577          else
 578            m
 579          end
 580        end
 581      end
 582    end
 583 
 584    # Wiki links
 585    #
 586    # Examples:
 587    #   [[mypage]]
 588    #   [[mypage|mytext]]
 589    # wiki links can refer other project wikis, using project name or identifier:
 590    #   [[project:]] -> wiki starting page
 591    #   [[project:|mytext]]
 592    #   [[project:mypage]]
 593    #   [[project:mypage|mytext]]
 594    def parse_wiki_links(text, project, obj, attr, only_path, options)
 595      text.gsub!(/(!)?(\[\[([^\]\n\|]+)(\|([^\]\n\|]+))?\]\])/) do |m|
 596        link_project = project
 597        esc, all, page, title = $1, $2, $3, $5
 598        if esc.nil?
 599          if page =~ /^([^\:]+)\:(.*)$/
 600            link_project = Project.find_by_identifier($1) || Project.find_by_name($1)
 601            page = $2
 602            title ||= $1 if page.blank?
 603          end
 604 
 605          if link_project && link_project.wiki
 606            # extract anchor
 607            anchor = nil
 608            if page =~ /^(.+?)\#(.+)$/
 609              page, anchor = $1, $2
 610            end
 611            anchor = sanitize_anchor_name(anchor) if anchor.present?
 612            # check if page exists
 613            wiki_page = link_project.wiki.find_page(page)
 614            url = if anchor.present? && wiki_page.present? && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)) && obj.page == wiki_page
 615              "##{anchor}"
 616            else
 617              case options[:wiki_links]
 618              when :local; "#{page.present? ? Wiki.titleize(page) : ''}.html" + (anchor.present? ? "##{anchor}" : '')
 619              when :anchor; "##{page.present? ? Wiki.titleize(page) : title}" + (anchor.present? ? "_#{anchor}" : '') # used for single-file wiki export
 620              else
 621                wiki_page_id = page.present? ? Wiki.titleize(page) : nil
 622                parent = wiki_page.nil? && obj.is_a?(WikiContent) && obj.page && project == link_project ? obj.page.title : nil
 623                url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project, 
 624                 :id => wiki_page_id, :anchor => anchor, :parent => parent)
 625              end
 626            end
 627            link_to(title.present? ? title.html_safe : h(page), url, :class => ('wiki-page' + (wiki_page ? '' : ' new')))
 628          else
 629            # project or wiki doesn't exist
 630            all
 631          end
 632        else
 633          all
 634        end
 635      end
 636    end
 637 
 638    # Redmine links
 639    #
 640    # Examples:
 641    #   Issues:
 642    #     #52 -> Link to issue #52
 643    #   Changesets:
 644    #     r52 -> Link to revision 52
 645    #     commit:a85130f -> Link to scmid starting with a85130f
 646    #   Documents:
 647    #     document#17 -> Link to document with id 17
 648    #     document:Greetings -> Link to the document with title "Greetings"
 649    #     document:"Some document" -> Link to the document with title "Some document"
 650    #   Versions:
 651    #     version#3 -> Link to version with id 3
 652    #     version:1.0.0 -> Link to version named "1.0.0"
 653    #     version:"1.0 beta 2" -> Link to version named "1.0 beta 2"
 654    #   Attachments:
 655    #     attachment:file.zip -> Link to the attachment of the current object named file.zip
 656    #   Source files:
 657    #     source:some/file -> Link to the file located at /some/file in the project's repository
 658    #     source:some/file@52 -> Link to the file's revision 52
 659    #     source:some/file#L120 -> Link to line 120 of the file
 660    #     source:some/file@52#L120 -> Link to line 120 of the file's revision 52
 661    #     export:some/file -> Force the download of the file
 662    #   Forum messages:
 663    #     message#1218 -> Link to message with id 1218
 664    #
 665    #   Links can refer other objects from other projects, using project identifier:
 666    #     identifier:r52
 667    #     identifier:document:"Some document"
 668    #     identifier:version:1.0.0
 669    #     identifier:source:some/file
 670    def parse_redmine_links(text, project, obj, attr, only_path, options)
 671      text.gsub!(%r{([\s\(,\-\[\>]|^)(!)?(([a-z0-9\-_]+):)?(attachment|document|version|forum|news|message|project|commit|source|export)?(((#)|((([a-z0-9\-]+)\|)?(r)))((\d+)((#note)?-(\d+))?)|(:)([^"\s<>][^\s<>]*?|"[^"]+?"))(?=(?=[[:punct:]][^A-Za-z0-9_/])|,|\s|\]|<|$)}) do |m|
 672        leading, esc, project_prefix, project_identifier, prefix, repo_prefix, repo_identifier, sep, identifier, comment_suffix, comment_id = $1, $2, $3, $4, $5, $10, $11, $8 || $12 || $18, $14 || $19, $15, $17
 673        link = nil
 674        if project_identifier
 675          project = Project.visible.find_by_identifier(project_identifier)
 676        end
 677        if esc.nil?
 678          if prefix.nil? && sep == 'r'
 679            if project
 680              repository = nil
 681              if repo_identifier
 682                repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
 683              else
 684                repository = project.repository
 685              end
 686              # project.changesets.visible raises an SQL error because of a double join on repositories
 687              if repository && (changeset = Changeset.visible.find_by_repository_id_and_revision(repository.id, identifier))
 688                link = link_to(h("#{project_prefix}#{repo_prefix}r#{identifier}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.revision},
 689                                          :class => 'changeset',
 690                                          :title => truncate_single_line(changeset.comments, :length => 100))
 691              end
 692            end
 693          elsif sep == '#'
 694            oid = identifier.to_i
 695            case prefix
 696            when nil
 697              if issue = Issue.visible.find_by_id(oid, :include => :status)
 698                anchor = comment_id ? "note-#{comment_id}" : nil
 699                link = link_to("##{oid}", {:only_path => only_path, :controller => 'issues', :action => 'show', :id => oid, :anchor => anchor},
 700                                          :class => issue.css_classes,
 701                                          :title => "#{truncate(issue.subject, :length => 100)} (#{issue.status.name})")
 702              end
 703            when 'document'
 704              if document = Document.visible.find_by_id(oid)
 705                link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
 706                                                  :class => 'document'
 707              end
 708            when 'version'
 709              if version = Version.visible.find_by_id(oid)
 710                link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
 711                                                :class => 'version'
 712              end
 713            when 'message'
 714              if message = Message.visible.find_by_id(oid, :include => :parent)
 715                link = link_to_message(message, {:only_path => only_path}, :class => 'message')
 716              end
 717            when 'forum'
 718              if board = Board.visible.find_by_id(oid)
 719                link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
 720                                               :class => 'board'
 721              end
 722            when 'news'
 723              if news = News.visible.find_by_id(oid)
 724                link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
 725                                              :class => 'news'
 726              end
 727            when 'project'
 728              if p = Project.visible.find_by_id(oid)
 729                link = link_to_project(p, {:only_path => only_path}, :class => 'project')
 730              end
 731            end
 732          elsif sep == ':'
 733            # removes the double quotes if any
 734            name = identifier.gsub(%r{^"(.*)"$}, "\\1")
 735            case prefix
 736            when 'document'
 737              if project && document = project.documents.visible.find_by_title(name)
 738                link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
 739                                                  :class => 'document'
 740              end
 741            when 'version'
 742              if project && version = project.versions.visible.find_by_name(name)
 743                link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
 744                                                :class => 'version'
 745              end
 746            when 'forum'
 747              if project && board = project.boards.visible.find_by_name(name)
 748                link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
 749                                               :class => 'board'
 750              end
 751            when 'news'
 752              if project && news = project.news.visible.find_by_title(name)
 753                link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
 754                                              :class => 'news'
 755              end
 756            when 'commit', 'source', 'export'
 757              if project
 758                repository = nil
 759                if name =~ %r{^(([a-z0-9\-]+)\|)(.+)$}
 760                  repo_prefix, repo_identifier, name = $1, $2, $3
 761                  repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
 762                else
 763                  repository = project.repository
 764                end
 765                if prefix == 'commit'
 766                  if repository && (changeset = Changeset.visible.find(:first, :conditions => ["repository_id = ? AND scmid LIKE ?", repository.id, "#{name}%"]))
 767                    link = link_to h("#{project_prefix}#{repo_prefix}#{name}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.identifier},
 768                                                 :class => 'changeset',
 769                                                 :title => truncate_single_line(h(changeset.comments), :length => 100)
 770                  end
 771                else
 772                  if repository && User.current.allowed_to?(:browse_repository, project)
 773                    name =~ %r{^[/\\]*(.*?)(@([0-9a-f]+))?(#(L\d+))?$}
 774                    path, rev, anchor = $1, $3, $5
 775                    link = link_to h("#{project_prefix}#{prefix}:#{repo_prefix}#{name}"), {:controller => 'repositories', :action => 'entry', :id => project, :repository_id => repository.identifier_param,
 776                                                            :path => to_path_param(path),
 777                                                            :rev => rev,
 778                                                            :anchor => anchor,
 779                                                            :format => (prefix == 'export' ? 'raw' : nil)},
 780                                                           :class => (prefix == 'export' ? 'source download' : 'source')
 781                  end
 782                end
 783                repo_prefix = nil
 784              end
 785            when 'attachment'
 786              attachments = options[:attachments] || (obj && obj.respond_to?(:attachments) ? obj.attachments : nil)
 787              if attachments && attachment = attachments.detect {|a| a.filename == name }
 788                link = link_to h(attachment.filename), {:only_path => only_path, :controller => 'attachments', :action => 'download', :id => attachment},
 789                                                       :class => 'attachment'
 790              end
 791            when 'project'
 792              if p = Project.visible.find(:first, :conditions => ["identifier = :s OR LOWER(name) = :s", {:s => name.downcase}])
 793                link = link_to_project(p, {:only_path => only_path}, :class => 'project')
 794              end
 795            end
 796          end
 797        end
 798        (leading + (link || "#{project_prefix}#{prefix}#{repo_prefix}#{sep}#{identifier}#{comment_suffix}"))
 799      end
 800    end
 801 
 802    HEADING_RE = /(<h(1|2|3|4)( [^>]+)?>(.+?)<\/h(1|2|3|4)>)/i unless const_defined?(:HEADING_RE)
 803 
 804    def parse_sections(text, project, obj, attr, only_path, options)
 805      return unless options[:edit_section_links]
 806      text.gsub!(HEADING_RE) do
 807        heading = $1
 808        @current_section += 1
 809        if @current_section > 1
 810          content_tag('div',
 811            link_to(image_tag('edit.png'), options[:edit_section_links].merge(:section => @current_section)),
 812            :class => 'contextual',
 813            :title => l(:button_edit_section)) + heading.html_safe
 814        else
 815          heading
 816        end
 817      end
 818    end
 819 
 820    # Headings and TOC
 821    # Adds ids and links to headings unless options[:headings] is set to false
 822    def parse_headings(text, project, obj, attr, only_path, options)
 823      return if options[:headings] == false
 824 
 825      text.gsub!(HEADING_RE) do
 826        level, attrs, content = $2.to_i, $3, $4
 827        item = strip_tags(content).strip
 828        anchor = sanitize_anchor_name(item)
 829        # used for single-file wiki export
 830        anchor = "#{obj.page.title}_#{anchor}" if options[:wiki_links] == :anchor && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version))
 831        @heading_anchors[anchor] ||= 0
 832        idx = (@heading_anchors[anchor] += 1)
 833        if idx > 1
 834          anchor = "#{anchor}-#{idx}"
 835        end
 836        @parsed_headings << [level, anchor, item]
 837        "<a name=\"#{anchor}\"></a>\n<h#{level} #{attrs}>#{content}<a href=\"##{anchor}\" class=\"wiki-anchor\">&para;</a></h#{level}>"
 838      end
 839    end
 840 
 841    MACROS_RE = /
 842                  (!)?                        # escaping
 843                  (
 844                  \{\{                        # opening tag
 845                  ([\w]+)                     # macro name
 846                  (\(([^\}]*)\))?             # optional arguments
 847                  \}\}                        # closing tag
 848                  )
 849                /x unless const_defined?(:MACROS_RE)
 850 
 851    # Macros substitution
 852    def parse_macros(text, project, obj, attr, only_path, options)
 853      text.gsub!(MACROS_RE) do
 854        esc, all, macro = $1, $2, $3.downcase
 855        args = ($5 || '').split(',').each(&:strip)
 856        if esc.nil?
 857          begin
 858            exec_macro(macro, obj, args)
 859          rescue => e
 860            "<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>"
 861          end || all
 862        else
 863          all
 864        end
 865      end
 866    end
 867 
 868    TOC_RE = /<p>\{\{([<>]?)toc\}\}<\/p>/i unless const_defined?(:TOC_RE)
 869 
 870    # Renders the TOC with given headings
 871    def replace_toc(text, headings)
 872      text.gsub!(TOC_RE) do
 873        if headings.empty?
 874          ''
 875        else
 876          div_class = 'toc'
 877          div_class << ' right' if $1 == '>'
 878          div_class << ' left' if $1 == '<'
 879          out = "<ul class=\"#{div_class}\"><li>"
 880          root = headings.map(&:first).min
 881          current = root
 882          started = false
 883          headings.each do |level, anchor, item|
 884            if level > current
 885              out << '<ul><li>' * (level - current)
 886            elsif level < current
 887              out << "</li></ul>\n" * (current - level) + "</li><li>"
 888            elsif started
 889              out << '</li><li>'
 890            end
 891            out << "<a href=\"##{anchor}\">#{item}</a>"
 892            current = level
 893            started = true
 894          end
 895          out << '</li></ul>' * (current - root)
 896          out << '</li></ul>'
 897        end
 898      end
 899    end
 900 
 901    # Same as Rails' simple_format helper without using paragraphs
 902    def simple_format_without_paragraph(text)
 903      text.to_s.
 904        gsub(/\r\n?/, "\n").                    # \r\n and \r -> \n
 905        gsub(/\n\n+/, "<br /><br />").          # 2+ newline  -> 2 br
 906        gsub(/([^\n]\n)(?=[^\n])/, '\1<br />'). # 1 newline   -> br
 907        html_safe
 908    end
 909 
 910    def lang_options_for_select(blank=true)
 911      (blank ? [["(auto)", ""]] : []) +
 912        valid_languages.collect{|lang| [ ll(lang.to_s, :general_lang_name), lang.to_s]}.sort{|x,y| x.last <=> y.last }
 913    end
 914 
 915    def label_tag_for(name, option_tags = nil, options = {})
 916      label_text = l(("field_"+field.to_s.gsub(/\_id$/, "")).to_sym) + (options.delete(:required) ? @template.content_tag("span", " *", :class => "required"): "")
 917      content_tag("label", label_text)
 918    end
 919 
 920    def labelled_tabular_form_for(*args, &proc)
 921      ActiveSupport::Deprecation.warn "ApplicationHelper#labelled_tabular_form_for is deprecated and will be removed in Redmine 1.5. Use #labelled_form_for instead."
 922      args << {} unless args.last.is_a?(Hash)
 923      options = args.last
 924      options[:html] ||= {}
 925      options[:html][:class] = 'tabular' unless options[:html].has_key?(:class)
 926      options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
 927      form_for(*args, &proc)
 928    end
 929 
 930    def labelled_form_for(*args, &proc)
 931      args << {} unless args.last.is_a?(Hash)
 932      options = args.last
 933      options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
 934      form_for(*args, &proc)
 935    end
 936 
 937    def labelled_fields_for(*args, &proc)
 938      args << {} unless args.last.is_a?(Hash)
 939      options = args.last
 940      options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
 941      fields_for(*args, &proc)
 942    end
 943 
 944    def labelled_remote_form_for(*args, &proc)
 945      args << {} unless args.last.is_a?(Hash)
 946      options = args.last
 947      options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
 948      remote_form_for(*args, &proc)
 949    end
 950 
 951    def error_messages_for(*objects)
 952      html = ""
 953      objects = objects.map {|o| o.is_a?(String) ? instance_variable_get("@#{o}") : o}.compact
 954      errors = objects.map {|o| o.errors.full_messages}.flatten
 955      if errors.any?
 956        html << "<div id='errorExplanation'><ul>\n"
 957        errors.each do |error|
 958          html << "<li>#{h error}</li>\n"
 959        end
 960        html << "</ul></div>\n"
 961      end
 962      html.html_safe
 963    end  
 964 
 965    def back_url_hidden_field_tag
 966      back_url = params[:back_url] || request.env['HTTP_REFERER']
 967      back_url = CGI.unescape(back_url.to_s)
 968      hidden_field_tag('back_url', CGI.escape(back_url), :id => nil) unless back_url.blank?
 969    end
 970 
 971    def check_all_links(form_name)
 972      link_to_function(l(:button_check_all), "checkAll('#{form_name}', true)") +
 973      " | ".html_safe +
 974      link_to_function(l(:button_uncheck_all), "checkAll('#{form_name}', false)")
 975    end
 976 
 977    def progress_bar(pcts, options={})
 978      pcts = [pcts, pcts] unless pcts.is_a?(Array)
 979      pcts = pcts.collect(&:round)
 980      pcts[1] = pcts[1] - pcts[0]
 981      pcts << (100 - pcts[1] - pcts[0])
 982      width = options[:width] || '100px;'
 983      legend = options[:legend] || ''
 984      content_tag('table',
 985        content_tag('tr',
 986          (pcts[0] > 0 ? content_tag('td', '', :style => "width: #{pcts[0]}%;", :class => 'closed') : ''.html_safe) +
 987          (pcts[1] > 0 ? content_tag('td', '', :style => "width: #{pcts[1]}%;", :class => 'done') : ''.html_safe) +
 988          (pcts[2] > 0 ? content_tag('td', '', :style => "width: #{pcts[2]}%;", :class => 'todo') : ''.html_safe)
 989        ), :class => 'progress', :style => "width: #{width};").html_safe +
 990        content_tag('p', legend, :class => 'pourcent').html_safe
 991    end
 992 
 993    def checked_image(checked=true)
 994      if checked
 995        image_tag 'toggle_check.png'
 996      end
 997    end
 998 
 999    def context_menu(url)
1000      unless @context_menu_included
1001        content_for :header_tags do
1002          javascript_include_tag('context_menu') +
1003            stylesheet_link_tag('context_menu')
1004        end
1005        if l(:direction) == 'rtl'
1006          content_for :header_tags do
1007            stylesheet_link_tag('context_menu_rtl')
1008          end
1009        end
1010        @context_menu_included = true
1011      end
1012      javascript_tag "new ContextMenu('#{ url_for(url) }')"
1013    end
1014 
1015    def calendar_for(field_id)
1016      include_calendar_headers_tags
1017      image_tag("calendar.png", {:id => "#{field_id}_trigger",:class => "calendar-trigger"}) +
1018      javascript_tag("Calendar.setup({inputField : '#{field_id}', ifFormat : '%Y-%m-%d', button : '#{field_id}_trigger' });")
1019    end
1020 
1021    def include_calendar_headers_tags
1022      unless @calendar_headers_tags_included
1023        @calendar_headers_tags_included = true
1024        content_for :header_tags do
1025          start_of_week = case Setting.start_of_week.to_i
1026          when 1
1027            'Calendar._FD = 1;' # Monday
1028          when 7
1029            'Calendar._FD = 0;' # Sunday
1030          when 6
1031            'Calendar._FD = 6;' # Saturday
1032          else
1033            '' # use language
1034          end
1035 
1036          javascript_include_tag('calendar/calendar') +
1037          javascript_include_tag("calendar/lang/calendar-#{current_language.to_s.downcase}.js") +
1038          javascript_tag(start_of_week) +
1039          javascript_include_tag('calendar/calendar-setup') +
1040          stylesheet_link_tag('calendar')
1041        end
1042      end
1043    end
1044 
1045    def content_for(name, content = nil, &block)
1046      @has_content ||= {}
1047      @has_content[name] = true
1048      super(name, content, &block)
1049    end
1050 
1051    def has_content?(name)
1052      (@has_content && @has_content[name]) || false
1053    end
1054 
1055    def email_delivery_enabled?
1056      !!ActionMailer::Base.perform_deliveries
1057    end
1058 
1059    # Returns the avatar image tag for the given +user+ if avatars are enabled
1060    # +user+ can be a User or a string that will be scanned for an email address (eg. 'joe <joe@foo.bar>')
1061    def avatar(user, options = { })
1062      if Setting.gravatar_enabled?
1063        options.merge!({:ssl => (defined?(request) && request.ssl?), :default => Setting.gravatar_default})
1064        email = nil
1065        if user.respond_to?(:mail)
1066          email = user.mail
1067        elsif user.to_s =~ %r{<(.+?)>}
1068          email = $1
1069        end
1070        return gravatar(email.to_s.downcase, options) unless email.blank? rescue nil
1071      else
1072        ''
1073      end
1074    end
1075 
1076    def sanitize_anchor_name(anchor)
1077      anchor.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
1078    end
1079 
1080    # Returns the javascript tags that are included in the html layout head
1081    def javascript_heads
1082      tags = javascript_include_tag(:defaults)
1083      unless User.current.pref.warn_on_leaving_unsaved == '0'
1084        tags << "\n".html_safe + javascript_tag("Event.observe(window, 'load', function(){ new WarnLeavingUnsaved('#{escape_javascript( l(:text_warn_on_leaving_unsaved) )}'); });")
1085      end
1086      tags
1087    end
1088 
1089    def favicon
1090      "<link rel='shortcut icon' href='#{image_path('/favicon.ico')}' />".html_safe
1091    end
1092 
1093    def robot_exclusion_tag
1094      '<meta name="robots" content="noindex,follow,noarchive" />'.html_safe
1095    end
1096 
1097    # Returns true if arg is expected in the API response
1098    def include_in_api_response?(arg)
1099      unless @included_in_api_response
1100        param = params[:include]
1101        @included_in_api_response = param.is_a?(Array) ? param.collect(&:to_s) : param.to_s.split(',')
1102        @included_in_api_response.collect!(&:strip)
1103      end
1104      @included_in_api_response.include?(arg.to_s)
1105    end
1106 
1107    # Returns options or nil if nometa param or X-Redmine-Nometa header
1108    # was set in the request
1109    def api_meta(options)
1110      if params[:nometa].present? || request.headers['X-Redmine-Nometa']
1111        # compatibility mode for activeresource clients that raise
1112        # an error when unserializing an array with attributes
1113        nil
1114      else
1115        options
1116      end
1117    end
1118 
1119    private
1120 
1121    def wiki_helper
1122      helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
1123      extend helper
1124      return self
1125    end
1126 
1127    def link_to_content_update(text, url_params = {}, html_options = {})
1128      link_to(text, url_params, html_options)
1129    end
1130  end