Class: VersionsController

Inherits:
ApplicationController show all
Defined in:
app/controllers/versions_controller.rb

Instance Method Summary collapse

Methods included from Zena::App

included

Instance Method Details

#css_preview ⇒ Object

This is a helpers used when creating the css for the site. They have no link with the database



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# File 'app/controllers/versions_controller.rb', line 174

def css_preview
  file = params[:css].gsub('..','')
  path = File.join(Zena::ROOT, 'public', 'stylesheets', file)
  if File.exists?(path)
    if session[:css] && session[:css] == File.stat(path).mtime
      render :nothing=>true
    else
      session[:css] = File.stat(path).mtime
      @css = File.read(path)
    end
  else
    render :nothing=>true
  end
end

#custom_tab ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 85

def custom_tab
  render :file => template_url(:mode=>'+edit', :format=>'html'), :layout=>false
rescue ActiveRecord::RecordNotFound
  render :action => 'custom_tab'
end

#destroy ⇒ Object

TODO: test



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# File 'app/controllers/versions_controller.rb', line 248

def destroy
  if @node.destroy_version
    if @node.versions.empty?
      flash.now[:notice] = _("Node destroyed.")
      respond_to do |format|
        format.html { redirect_to zen_path(@node.parent) }
        format.js
      end
    else
      flash.now[:notice] = _("Version destroyed.")
      do_rendering
    end
  else
    flash.now[:error] = _("Could not destroy version.")
    do_rendering
  end
end

#diff ⇒ Object

TODO: test/improve or remove (experiments) github.com/samg/diffy



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# File 'app/controllers/versions_controller.rb', line 93

def diff
  if false
    # FULL PAGE DIFF
    
    # Render with source
    source_html = render_and_cache :as_string => true

    # target
    if params[:to].to_i > 0
      version = secure!(Version) { Version.find(:first, :conditions => ['node_id = ? AND number = ?', @node.id, params[:to]])}
      # Reload prop
      @node.prop = version.prop
    else
      # default
      @node.instance_variable_set(:@version, nil)
    end

    # Render with target
    target_html = render_and_cache :as_string => true
    
    result = Differ.diff_by_word(target_html, source_html).format_as(:html)
    
    render :inline => result # Broken because Differ does not understand html...
  else
    # PROP DIFF

    # source
    source = @node.version.prop

    # target
    if params[:to].to_i > 0
      version = secure!(Version) { Version.find(:first, :conditions => ['node_id = ? AND number = ?', @node.id, params[:to]])}
      @node.version = version
    else
      # default
      @node.instance_variable_set(:@version, nil)
    end
    target = @node.prop

    keys = (target.keys + source.keys).uniq

    keys.each do |k|
      target[k] = Differ.diff_by_word(
        target[k] || '',
        source[k] || '').format_as(:html).gsub(/(\s+)<\/del>/, '</del>\1')
    end

    show
  end
end

#edit ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 57

def edit
  if params[:drive]
    if @node.redit
      flash.now[:notice] = _("Version changed back to redaction.")
    else
      flash.now[:error] = _("Could not change version back to redaction.")
    end
    render :action=>'update'
  else
    @title_for_layout = title_for_layout
    if @node.kind_of?(TextDocument)
      if params['parse_assets']
        @node.text = @node.parse_assets(@node.text, self, 'text')
      elsif @node.kind_of?(TextDocument) && params['unparse_assets']
        @node.text = @node.unparse_assets(@node.text, self, 'text')
      end
    end
    @edit = true
  end
  if params[:close] == 'true'
    js_data << "Zena.reload_and_close();"
  else
    js_data << <<-END_TXT
    Zena.editor_setup('#{preview_node_version_path(:node_id=>@node[:zip], :id=>(@node.version.number || 0), :escape => false)}');
    END_TXT
  end
end

#preview ⇒ Object

preview when editing node



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# File 'app/controllers/versions_controller.rb', line 145

def preview
  if @key = (params['key'] || params['amp;key'])
    if @node.can_write?
      @value = params[:content]
      if @node.kind_of?(TextDocument) && @key == 'text'
        l = @node.content_lang
        @value = "<code#{l ? " lang='#{l}'" : ''} class=\'full\'>#{@value}</code>"
      end
    else
      @value = "<span style='background:#f66;padding:10px; border:1px solid red; color:black;font-size:10pt;font-weight:normal;'>#{_('you do not have write access here')}#{visitor.is_anon? ? " (<a style='color:#00a;text-decoration:underline;' href='/login'>#{_('please login')}</a>)" : ""}</span>"
    end
  else
    # elsif @node.kind_of?(Image)
    #   # view image version
    #   # TODO: how to show the image data of a version ? 'nodes/3/versions/4.jpg' ?
    #   @node.text = "<img src='#{url_for(:controller=>'versions', :node_id=>@node[:zip], :id=>@node.v_number, :format=>@node.ext)}'/>"
    # elsif @node.kind_of?(TextDocument)
    #   lang = @node.content_lang
    #   lang = lang ? " lang='#{lang}'" : ""
    #   @node.text = "<code#{lang} class='full'>#{@text}</code>"
  end


  respond_to do |format|
    format.js
  end
end

#propose ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 189

def propose
  if @node.propose
    flash.now[:notice] = _("Redaction proposed for publication.")
  else
    flash.now[:error] = _("Could not propose redaction.")
  end
  do_rendering
end

#publish ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 208

def publish
  if @node.publish
    flash.now[:notice] = _("Redaction published.")
  else
    flash.now[:error] = _("Could not publish:") +
      " #{error_messages_for(:node, :object => @node)}"
  end
  do_rendering
end

#redit ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 227

def redit
  if @node.redit
    flash.now[:notice] = _("Rolled back to redaction.")
  else
    flash.now[:error] = _("Could not rollback:") +
      " #{error_messages_for(:node, :object => @node)}"
  end
  do_rendering
end

#refuse ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 198

def refuse
  if @node.refuse
    flash.now[:notice] = _("Proposition refused.")
    @redirect_url = @node.can_read? ? request.env['HTTP_REFERER'] : user_path(visitor)
  else
    flash.now[:notice] = _("Could not refuse proposition.")
  end
  do_rendering
end

#remove ⇒ Object 



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# File 'app/controllers/versions_controller.rb', line 218

def remove
  if @node.remove
    flash.now[:notice] = _("Publication removed.")
  else
    flash.now[:error] = _("Could not remove publication.")
  end
  do_rendering
end

#show ⇒ Object

Display a specific version of a node



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# File 'app/controllers/versions_controller.rb', line 7

def show
  respond_to do |format|

    format.html {
      if @node.id == current_site.home_id
        render_and_cache :cache => false, :mode => '+index'
        insert_warning
      else
        render_and_cache :cache => false
        insert_warning
      end
    }

    format.xml  { render :xml => @node.to_xml }

    format.js # show.rjs

    format.all  do
      # Get document data (inline if possible)
      if params[:format] != @node.safe_content_read('ext')
        return redirect_to(params.merge(:format => (@node.safe_content_read('ext') || 'html')))
      end

      if @node.kind_of?(Image) && !Zena::Use::ImageBuilder.dummy?
        img_format = Iformat[params[:mode]]
        data = @node.file(img_format)
        content_path = @node.filepath(img_format)
        disposition  = 'inline'

      elsif @node.kind_of?(TextDocument)
        data = StringIO.new(@node.text)
        content_path = nil
        disposition  = 'attachment'

      else
        data         = @node.file
        content_path = @node.filepath
        disposition  = 'inline'
      end
      raise ActiveRecord::RecordNotFound unless data

      send_data( data.read , :filename => @node.filename, :type => @node.content_type, :disposition => disposition)
      data.close

      # should we cache the page ?
      # cache_page(:content_path => content_path) # content_path is used to cache by creating a symlink
    end
  end
end

#unpublish ⇒ Object

TODO: test



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# File 'app/controllers/versions_controller.rb', line 238

def unpublish
  if @node.unpublish
    flash.now[:notice] = _("Publication removed.")
  else
    flash.now[:error] = _("Could not remove publication.")
  end
  do_rendering
end