Class: NodesController

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

Overview

Url

basepath          class and zip   optional mode   format

/projects/art/    project24       _print          .html

Examples:

/current/art/project24.html            << a project inside the 'art' page
/note24.html                           << a Note's page
/note24_print.html                     << a Note in 'print' mode
/current/art.html                      << 'art' page (this page has custom base set, this means no class or zip shown)
/current/art_print.html                << 'art' page in 'print' mode
/current/art/project24/image28.html    << image page (for comments, etc)
/current/art/project24/image28.jpg     << full image data
/current/art/project24/image28_pv.jpg  << image in the 'pv' image format
/current/art/project24/image28_print.html << image page in 'print' mode

Instance Method Summary collapse

Methods included from Zena::App

included

Instance Method Details

#asearch ⇒ Object

this should not be needed.… but format.js never gets called otherwize.



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# File 'app/controllers/nodes_controller.rb', line 108

def asearch
  do_search
  respond_to do |format|
    #format.html { render_and_cache :mode => 'search' }
    format.js { render :action => 'search'}
  end
end

#attribute ⇒ Object

AJAX HELPER TODO: test



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# File 'app/controllers/nodes_controller.rb', line 512

def attribute
  method = params[:attr]
  if (params[:pseudo_id] || params[:name]).blank? || !%w{title text summary name path short_path}.include?(method)
    # Error
    render :text => ''
    return
  end

  if id_query = params[:pseudo_id]
    # '+' are not escaped as they should in ajax query
    id_query.sub!(/ +$/) {|spaces| '+' * spaces.length }
    node_id = secure!(Node) { Node.translate_pseudo_id(id_query, :id, @node)}
    @node = secure!(Node) { Node.find(node_id) }
  elsif name_query = params[:name]
    # Get attribute by name
    # TODO: test
    if name_query =~ /^(.*)\.[a-z]{2,3}$/
      name_query = $1
    end

    conditions = [[]]

    if kpath = params[:kpath]
      conditions[0] << "kpath LIKE ?"
      conditions << "#{kpath}%"
    end

    name_query = "#{name_query}%"
    @node = secure!(Node) { Node.find_by_title(name_query, :conditions => conditions, :order => "zip DESC", :like => true)}
  end

  if %w{path short_path}.include?(method)
    path = @node.send(method)
    render :text => path.join('/ ')
  else
    @text = @node.send(method)
    if %w{text summary}.include?(method)
      render :text => "<%= zazen(@text) %>"
    else
      render :text => @text
    end
  end
rescue ActiveRecord::RecordNotFound
  render :text => (params[:pseudo_id] ? _('node not found') : _('new'))
end

#backup ⇒ Object

Create a backup copy of the current redaction.



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# File 'app/controllers/nodes_controller.rb', line 367

def backup
  version = secure_write!(Version) { Version.find(params[:id]) }
  @node   = version.node
  @node.backup
  if @node.errors.empty?
    flash.now[:notice] = _("Backup created.")
  else
    flash.now[:error] = _("Could not create backup.")
  end
end

#catch_all ⇒ Object

Render badly formed urls



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# File 'app/controllers/nodes_controller.rb', line 52

def catch_all
  query_params_list = []
  query_params.each do |k,v|
    next if v.kind_of?(Hash) # FIXME: we should support nested hashes. Can't we use something in rails here ?
    query_params_list << "#{k}=#{CGI.escape(v.to_s)}"
  end
  redirect_to "/" + ([prefix]+params[:path]).flatten.join('/') + (query_params_list == [] ? '' : "?#{query_params_list.join('&')}")
end

#clear_order ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 586

def clear_order
  kpath = (params[:kpath] || 'ZZ')[0..1]
  allOk = true

  children = secure!(Node) { Node.find(:all, :conditions => ['parent_id = ? AND kpath like ?', @node[:id], "#{kpath}%"])}

  children.each do |child|
    child.position = 0.0
    allOk = child.save && allOk
  end

  if !allOk
    @errors = _('Could not clear order.')
  end

  respond_to do |format|
    format.js
  end
end

#create ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 234

def create
  attrs = params['node']
  file, file_error = get_attachment
  if file
    attrs['file'] = file
    attrs['klass'] ||= 'Document'
  end

  attrs = secure(Node) { Node.transform_attributes(attrs) }

  begin
    # Make sure we can load parent (also enables ACL to work for us here).
    zip = attrs.delete('parent_zip')
    parent = visitor.find_node(nil, zip, nil, request, true)
    
    @node = parent.new_child(attrs, false)
    if visitor.exec_acl && !(@node.kpath =~ %r{^#{visitor.exec_acl.create_kpath}})
      # Document creation can change initial klass depending on mime type. Make sure it is still allowed.
      @node.errors.add('klass', 'Not allowed')
    else
      @node.save
    end
  rescue ActiveRecord::RecordNotFound
    # Let normal processing insert errors
    @node = Node.new
    @node.errors.add('base', 'Not allowed')
  end
  @node.errors.add('file', file_error) if file_error

  if params[Zena::Use::Upload::UPLOAD_KEY]
    # Respond in parent from iframe.
    return render_upload
  end
  
  respond_to do |format|
    if @node.errors.empty?
      flash.now[:notice] = 'Node was successfully created.'
      format.html {
        redirect_to  params[:redir] || zen_path(@node, :mode => params[:mode], :new => 'true')
      }
      format.js do
        if params[:zjs]
          attrs = {'id' => @node.zip}
          params[:node].each do |k,v|
            v = @node.zafu_eval(k, params[:opts])
            attrs[k] = v
          end
          render :json => attrs.to_json, :status => :created
        end
      end
      format.xml  { render :xml => @node.to_xml(:root => 'node'), :status => :created, :location => node_url(@node) }
    else
      # ERROR
      format.html do
        flash[:error] = error_messages_for('node', :object => @node)
        if request.referer
          redirect_to request.referer
        else
          raise ActiveRecord::RecordNotFound
        end
      end
      format.js do
        if params[:zjs]
          render :json => @node.errors, :status => :unprocessable_entity
        end
      end
      format.xml  { render :xml => @node.errors, :status => :unprocessable_entity }
    end
  end
end

#destroy ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 319

def destroy
  respond_to do |format|
    format.html do
      if @node.destroy
        # These flash messages tend to hang around stupidly
        # flash[:notice] = _("Node destroyed.")
        redirect_to params[:redir] || zen_path(@node.parent)
      else
        flash.now[:notice] = _("Could not destroy node.")
        render :action => 'show'
      end
    end

    format.xml do
      node_xml = @node.to_xml #need to be allocated before destroying
      if node_xml && @node.destroy
        render :xml => node_xml, :status => 200
      else
        @node.errors.add(:visitor, visitor.) if RAILS_ENV == 'development'
        render :xml => @node.errors, :status => :unprocessable_entity
      end
    end

    format.js do
      
      if params[:zjs]
        node_json = @node.to_json
        if @node.destroy
          render :json => node_json, :status => 200
        else
          render :json => @node.errors, :status => :unprocessable_entity
        end
      else
        @parent = @node.parent
        @node.destroy
        # update_page_content(page, @parent)
      end
    end

  end
end

#drop ⇒ Object

This method is called when an element is dropped on a node.



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# File 'app/controllers/nodes_controller.rb', line 139

def drop
  set       = params[:set]
  other_zip = params[:drop].split('_').last
  other  = secure!(Node) { Node.find_by_zip(other_zip)}

  if attributes = params[:node]
    if params[:node][:id] == '#{id}'
      # swap (a way to preview content by drag & drop)
      @node = other
    elsif params[:change] == 'receiver'
      attributes[:_copy] = other
      @node.update_attributes_with_transformation(attributes)
      if !@node.errors.empty?
        @errors = @node.errors
      end
    else
      attributes[:_copy] = @node
      other.update_attributes_with_transformation(attributes)
      if !other.errors.empty?
        @errors = other.errors
      end
    end
  else
    p = params.dup
    p.delete(:action)
    p.delete(:controller)
    params.merge!(other.replace_attributes_in_values(p))
  end

  respond_to do |format|
    format.js
  end
end

#edit ⇒ Object

modifications of the node itself (dates, groups, revert editions, etc)



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# File 'app/controllers/nodes_controller.rb', line 306

def edit
  respond_to do |format|
    format.html do
      @title_for_layout = title_for_layout
    end

    format.js do
      # zafu edit
      render :template => 'nodes/edit.rjs' # FIXME: this should not be needed. Rails bug ?
    end
  end
end

#export ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 412

def export
  send_file(@node.archive.path, :filename=>"#{@node.title}.tgz", :type => 'application/x-gzip', :x_sendfile => ENABLE_XSENDFILE)
end

#find ⇒ Object

Find nodes starting from a given node



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# File 'app/controllers/nodes_controller.rb', line 103

def find
  search
end

#import ⇒ Object

import sub-nodes from a file



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# File 'app/controllers/nodes_controller.rb', line 379

def import
  defaults = params[:node]
  klass = defaults.delete(:klass)
  if klass == 'Skin' && !defaults.has_key?('v_status')
    defaults['v_status'] = Zena::Status::Pub
  end
  attachment, error = get_attachment
  if error
    responds_to_parent do
      page.replace 'form_errors', error
    end
  else
    # TODO: UploadProgress.setAsProcessing..... would be nice...
    @nodes = secure!(Node) { Node.create_nodes_from_folder(
      :klass    => klass,
      :archive  => attachment,
      :parent   => @node,
      :defaults => defaults
    )}.values
    # parse pseudo_ids
    parse_assets(@nodes)

    responds_to_parent do # execute the redirect in the main window
      render :update do |page|
        page.call 'UploadProgress.setAsFinished'
        page.delay(1) do # allow the progress bar fade to complete
          page.replace_html 'import_tab', :partial => 'import_results'
        end
      end
    end
  end
end

#index ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 32

def index
  if @node = secure(Node) { Node.find(current_site.home_id) }
    respond_to do |format|
      format.html { render_and_cache :mode => '+index' }
      format.xml  { render :xml => @node.to_xml }
    end
  elsif base_node = visitor.node_without_secure
    if node = visitor.find_node(nil, base_node.zip, nil, request)
      # If the visitor is acl authorized to view his own node,
      # redirect there.
      redirect_to zen_path(node)
    else
      raise ActiveRecord::RecordNotFound
    end
  else
    raise ActiveRecord::RecordNotFound
  end
end

#not_found ⇒ Object

This method is used to test the 404 page when editing zafu templates. It is mapped from ‘/en/404.html’. Look at def Rendering#render_404

Raises:

  • (ActiveRecord::RecordNotFound) 


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# File 'app/controllers/nodes_controller.rb', line 63

def not_found
  raise ActiveRecord::RecordNotFound
end

#order ⇒ Object

TODO: test change the position of the children of the current element. TODO: what happens if not all the children are present due to access rights ?



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# File 'app/controllers/nodes_controller.rb', line 561

def order
  allOK = true
  positions = []
  params.each do |k,v|
    if k =~ /^sort_(.*)/
      positions = v
      break
    end
  end

  positions.each_with_index do |zip,idx|
    child = secure!(Node) { Node.find_by_zip(zip) }
    child.position = idx.to_f + 1.0
    allOk = child.save && allOK
  end

  respond_to do |format|
    if allOK
      format.html { render :text => _('Order updated')}
    else
      format.html { render :text => _('Could not update order.')}
    end
  end
end

#save_text ⇒ Object

TODO: test



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# File 'app/controllers/nodes_controller.rb', line 362

def save_text
  update
end

#search ⇒ Object

Find nodes starting from root node



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# File 'app/controllers/nodes_controller.rb', line 68

def search
  respond_to do |format|
    format.html do
      begin
        do_search
      rescue ::QueryBuilder::Error => err
        flash.now[:error] = err.message
      end
      render_and_cache :mode => '+search', :cache => false
    end

    format.xml do
      begin
        do_search
        if @nodes.kind_of?(Fixnum)
          # count
          render :xml => "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<count type=\"integer\">#{@nodes}</count>\n"
        elsif @nodes
          render :xml => Array(@nodes).to_xml(:root => 'nodes')
        else
          render :xml => [].to_xml(:root => 'nodes')
        end
      rescue ::QueryBuilder::Error => err
        render :xml => [{:message => err.message}].to_xml(:root => 'errors'), :status => 401
      end
    end

    format.js do
      do_search
      render :action => 'search'
    end
  end
end

#show ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 173

def show
  respond_to do |format|

    format.html { render_and_cache }

    if !params[:prefix]
      # /nodes/18.xml not treated the same as /en/page18.xml (render_and_cache)
      format.xml { render :xml => @node.to_xml }
    end

    format.any do
      if asset = params[:asset]
        # math rendered as png, ...
        filename     = "#{asset}.#{params[:format]}"
        content_path = @node.asset_path(filename)
        content_type = (Zena::EXT_TO_TYPE[params[:format]] || ['application/octet-stream'])[0]
        send_file(content_path, :filename=>filename, :type => content_type, :disposition=>'inline', :x_sendfile => ENABLE_XSENDFILE)
        cache_page(:content_path => content_path, :authenticated => @node.v_public?) # content_path is used to cache by creating a symlink
      elsif @node.kind_of?(Document) && params[:format] == @node.ext
        # Get document data (inline if possible)
        content_path = nil

        if @node.kind_of?(Image) && !Zena::Use::ImageBuilder.dummy?
          if img_format = Iformat[params[:mode]]
            content_path = @node.filepath(img_format)
            # force creation of image data
            @node.file(img_format)
          end
        elsif @node.kind_of?(TextDocument)
          send_data(@node.text, :filename => @node.filename, :type => @node.content_type, :disposition => 'inline')
        else
          content_path = @node.filepath
        end
        
        # content_path is used to cache by creating a symlink
        cache_ok = cache_page(:content_path  => content_path, :authenticated => @node.v_public?)
        
        if content_path
          if @node.v_public? && cache_ok
            # This is the simplest working solution to save cached version and use apache for serving (all xsendfile and such do not work with video streaming).
            redirect_to data_path(@node, :mode => params[:mode]) + "?1"
          else
            # FIXME RAILS: remove 'stream     => false' when rails streaming is fixed
            send_file(content_path, :filename => @node.filename, :type => @node.content_type, :disposition => 'inline', :stream => false, :x_sendfile => ENABLE_XSENDFILE)
          end
        end
      else
        render_and_cache
        # FIXME: redirect to document format should occur in render_and_cache
        #if has skin for format
        #  render_and_cache
        #elsif params[:format] == 'xml'
        #  render :xml => @node.to_xml }
        #else
        #  return redirect_to(zen_path(@node), :mode => params[:mode])
        #end
      end
    end
  end
end

#update ⇒ Object 



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# File 'app/controllers/nodes_controller.rb', line 416

def update
  @node = visitor.find_node(nil, params[:id], nil, request, true)

  if params[:link_id]
    @link = Link.find_through(@node, params[:link_id])
  end
  
  params['node'] ||= {}
  file, file_error = get_attachment
  params['node']['file'] = file if file
  # Make sure we load the correct version for edited v_lang
  lang = params['node']['v_lang'] || visitor.lang
  @node.version(lang)
  @v_status_before_update = @node.v_status
  @node.update_attributes_with_transformation(params['node'])
  # What is this 'extfile' thing ?
  @node.errors.add('extfile', file_error) if file_error

  if @node.errors.empty?
    flash.now[:notice] = _('node updated')
  else
    flash.now[:error]  = _('could not update')
  end

  if params[:iframe]
    responds_to_parent do # execute the redirect in the iframe's parent window
      render :update do |page|
        page.call "UploadProgress.setAsFinished"
        page.delay(1) do # allow the progress bar fade to complete
          page.redirect_to edit_node_version_path(:node_id => @node[:zip], :id=>(@node.v_number || 0), :close => (params[:validate] ? true : nil))
        end
      end
    end # parent iframe (upload)
  else
    respond_to do |format|
      format.html do
        if @node.errors.empty?
          if params[:edit] == 'popup'
            redirect_to edit_node_version_path(:node_id => @node[:zip], :id => 0, :close => (params[:validate] ? true : nil))
          else
            redirect_to params[:redir] || zen_path(@node, :mode => params[:mode])
          end
        else
          begin
            if request.referer
              route = ActionController::Routing::Routes.recognize_path(request.referer[%r{https?://[^/]+(.*)},1])
            else
              route = {:action => 'show'}
            end
            if route[:action] == 'index'
              mode = '+index'
            elsif route[:action] == 'search'
              mode = '+search'
            elsif path = route[:path]
              if path.last =~ Zena::Use::Urls::ALLOWED_REGEXP
                zip  = $3
                name = $4
                mode = $5 == '' ? nil : $5[1..-1]
              end
            end
          rescue ActionController::RoutingError
            mode = nil
          end
          render_and_cache :mode => mode, :cache => false
        end
      end # html

      format.js do
        @flash = flash
        if params[:zjs]
          if @node.errors.empty?
            attrs = {}
            params[:node].each do |k,v|
              v = @node.zafu_eval(k, params[:opts])
              attrs[k] = v
            end
            render :json => attrs.to_json, :status => :ok
          else
            render :json => @node.errors, :status => :unprocessable_entity
          end
        end
      end

      format.xml do
        if @node.errors.empty?
          render :xml => @node.to_xml, :status => :ok, :location => node_url(@node)
        else
          render :xml => @node.errors, :status => :unprocessable_entity
        end
      end # xml
    end
  end
end

#zafu ⇒ Object

RJS method. Enables using POST in JS for large text preview. Seen as ‘read’ in ACL.



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# File 'app/controllers/nodes_controller.rb', line 117

def zafu
  # We allow preview by using POST requests (long text in js) but they should appear as 'GET' in 
  # find_node.
  request.method = 'GET' if request.method == 'POST'
  
  @node = visitor.find_node(nil, params[:id], nil, request)

  if params[:link_id]
    @link = Link.find_through(@node, params[:link_id])
  end
  
  # security risk with ACL (change an object before display with extended rights). Must check no ACL before
  # preview. Only enable with proper security if this is really needed.
  # if params['node']
  #   @node.attributes = secure(Node) {Node.transform_attributes(params['node'], @node, true)}
  # end
  respond_to do |format|
    format.js { render :action => 'show' }
  end
end