Improve code readability

[rails.git] / app / controllers / trace_controller.rb

diff --git a/app/controllers/trace_controller.rb b/app/controllers/trace_controller.rb
index b8d189316d0d70f1c926b3198f4197229c95460d..60b5a4585330309f5c7aa1bf873ae6e5fe220dea 100644 (file)
--- a/app/controllers/trace_controller.rb
+++ b/app/controllers/trace_controller.rb
@@ -1,335 +1,355 @@
 class TraceController < ApplicationController
 class TraceController < ApplicationController

-  layout 'site'
-
-  before_filter :authorize_web
-  before_filter :set_locale
-  before_filter :require_user, :only => [:mine, :create, :edit, :delete]
-  before_filter :authorize, :only => [:api_details, :api_data, :api_create]
-  before_filter :check_database_readable, :except => [:api_details, :api_data, :api_create]
-  before_filter :check_database_writable, :only => [:create, :edit, :delete]
-  before_filter :check_api_readable, :only => [:api_details, :api_data]
-  before_filter :check_api_writable, :only => [:api_create]
- 
+  layout "site", :except => :georss
+
+  skip_before_action :verify_authenticity_token, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+  before_action :authorize_web
+  before_action :set_locale
+  before_action :require_user, :only => [:mine, :create, :edit, :delete]
+  before_action :authorize, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+  before_action :check_database_readable, :except => [:api_read, :api_data]
+  before_action :check_database_writable, :only => [:create, :edit, :delete, :api_create, :api_update, :api_delete]
+  before_action :check_api_readable, :only => [:api_read, :api_data]
+  before_action :check_api_writable, :only => [:api_create, :api_update, :api_delete]
+  before_action :require_allow_read_gpx, :only => [:api_read, :api_data]
+  before_action :require_allow_write_gpx, :only => [:api_create, :api_update, :api_delete]
+  before_action :offline_warning, :only => [:mine, :view]
+  before_action :offline_redirect, :only => [:create, :edit, :delete, :data, :api_create, :api_delete, :api_data]
+  around_action :api_call_handle_error, :only => [:api_create, :api_read, :api_update, :api_delete, :api_data]
+

   # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
   #  target_user - if set, specifies the user to fetch traces for.  if not set will fetch all traces
   # Counts and selects pages of GPX traces for various criteria (by user, tags, public etc.).
   #  target_user - if set, specifies the user to fetch traces for.  if not set will fetch all traces

-  def list(target_user = nil, action = "list")
+  def list

     # from display name, pick up user id if one user's traces only
     display_name = params[:display_name]
     # from display name, pick up user id if one user's traces only
     display_name = params[:display_name]

-    if target_user.nil? and !display_name.blank?
-      target_user = User.find(:first, :conditions => [ "visible = ? and display_name = ?", true, display_name])
+    unless display_name.blank?
+      target_user = User.active.where(:display_name => display_name).first

       if target_user.nil?
       if target_user.nil?

-        @title = t'trace.no_such_user.title'
-        @not_found_user = display_name
-        render :action => 'no_such_user', :status => :not_found
+        render_unknown_user display_name

         return
       end
     end
 
     # set title
         return
       end
     end
 
     # set title

-    if target_user.nil?
-      @title = t 'trace.list.public_traces'
-    elsif @user and @user == target_user
-      @title = t 'trace.list.your_traces'
-    else
-      @title = t 'trace.list.public_traces_from', :user => target_user.display_name
-    end
+    @title = if target_user.nil?
+               t "trace.list.public_traces"
+             elsif @user && @user == target_user
+               t "trace.list.your_traces"
+             else
+               t "trace.list.public_traces_from", :user => target_user.display_name
+             end

 
 

-    @title += t 'trace.list.tagged_with', :tags => params[:tag] if params[:tag]
+    @title += t "trace.list.tagged_with", :tags => params[:tag] if params[:tag]

 
     # four main cases:
     # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
     # 2 - all traces, not logged in = all public traces
 
     # four main cases:
     # 1 - all traces, logged in = all public traces + all user's (i.e + all mine)
     # 2 - all traces, not logged in = all public traces

-    # 3 - user's traces, logged in as same user = all user's traces 
+    # 3 - user's traces, logged in as same user = all user's traces

     # 4 - user's traces, not logged in as that user = all user's public traces
     # 4 - user's traces, not logged in as that user = all user's public traces

-    if target_user.nil? # all traces
-      if @user
-        conditions = ["(gpx_files.visibility <> 'private' OR gpx_files.user_id = ?)", @user.id] #1
-      else
-        conditions  = ["gpx_files.visibility <> 'private'"] #2
-      end
-    else
-      if @user and @user == target_user
-        conditions = ["gpx_files.user_id = ?", @user.id] #3 (check vs user id, so no join + can't pick up non-public traces by changing name)
-      else
-        conditions = ["gpx_files.public <> 'private' AND gpx_files.user_id = ?", target_user.id] #4
-      end
-    end
-    
-    if params[:tag]
-      @tag = params[:tag]
-
-      files = Tracetag.find_all_by_tag(params[:tag]).collect { |tt| tt.gpx_id }
-
-      if files.length > 0
-        conditions[0] += " AND gpx_files.id IN (#{files.join(',')})"
-      else
-        conditions[0] += " AND 0 = 1"
-      end
-    end
-    
-    conditions[0] += " AND gpx_files.visible = ?"
-    conditions << true
-
-    @trace_pages, @traces = paginate(:traces,
-                                     :include => [:user, :tags],
-                                     :conditions => conditions,
-                                     :order => "gpx_files.timestamp DESC",
-                                     :per_page => 20)
+    @traces = if target_user.nil? # all traces
+                if @user
+                  Trace.visible_to(@user) # 1
+                else
+                  Trace.visible_to_all # 2
+                end
+              elsif @user && @user == target_user
+                @user.traces # 3 (check vs user id, so no join + can't pick up non-public traces by changing name)
+              else
+                target_user.traces.visible_to_all # 4
+              end
+
+    @traces = @traces.tagged(params[:tag]) if params[:tag]
+
+    @page = (params[:page] || 1).to_i
+    @page_size = 20
+
+    @traces = @traces.visible
+    @traces = @traces.order("timestamp DESC")
+    @traces = @traces.offset((@page - 1) * @page_size)
+    @traces = @traces.limit(@page_size)
+    @traces = @traces.includes(:user, :tags)

 
     # put together SET of tags across traces, for related links
 
     # put together SET of tags across traces, for related links

-    tagset = Hash.new
-    if @traces
-      @traces.each do |trace|
-        trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
-        trace.tags.each do |tag|
-          tagset[tag.tag] = tag.tag
-        end
+    tagset = {}
+    @traces.each do |trace|
+      trace.tags.reload if params[:tag] # if searched by tag, ActiveRecord won't bring back other tags, so do explicitly here
+      trace.tags.each do |tag|
+        tagset[tag.tag] = tag.tag

       end
     end
       end
     end

-    
+

     # final helper vars for view
     # final helper vars for view

-    @action = action
+    @target_user = target_user

     @display_name = target_user.display_name if target_user
     @all_tags = tagset.values
   end
 
   def mine
     @display_name = target_user.display_name if target_user
     @all_tags = tagset.values
   end
 
   def mine

-    # Load the preference of whether the user set the trace public the last time
-    @trace = Trace.new
-    visibility = @user.preferences.find(:first, :conditions => {:k => "gps.trace.visibility"})
-    if visibility
-      @trace.visibility = visibility.v
-    elsif @user.preferences.find(:first, :conditions => {:k => "gps.trace.public", :v => "default"}).nil?
-      @trace.visibility = "private"
-    else 
-      @trace.visibility = "public"
-    end
-    list(@user, "mine")
+    redirect_to :action => :list, :display_name => @user.display_name

   end
 
   def view
     @trace = Trace.find(params[:id])
 
   end
 
   def view
     @trace = Trace.find(params[:id])
 

-    if @trace and @trace.visible? and
-       (@trace.public? or @trace.user == @user)
-      @title = t 'trace.view.title', :name => @trace.name
+    if @trace && @trace.visible? &&
+       (@trace.public? || @trace.user == @user)
+      @title = t "trace.view.title", :name => @trace.name

     else
     else

-      flash[:notice] = t 'trace.view.trace_not_found'
-      redirect_to :controller => 'trace', :action => 'list'
+      flash[:error] = t "trace.view.trace_not_found"
+      redirect_to :controller => "trace", :action => "list"

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    flash[:notice] = t 'trace.view.trace_not_found'
-    redirect_to :controller => 'trace', :action => 'list'
+    flash[:error] = t "trace.view.trace_not_found"
+    redirect_to :controller => "trace", :action => "list"

   end
 
   def create
     if params[:trace]
       logger.info(params[:trace][:gpx_file].class.name)
   end
 
   def create
     if params[:trace]
       logger.info(params[:trace][:gpx_file].class.name)

+

       if params[:trace][:gpx_file].respond_to?(:read)
       if params[:trace][:gpx_file].respond_to?(:read)

-        do_create(params[:trace][:gpx_file], params[:trace][:tagstring],
-                  params[:trace][:description], params[:trace][:visibility])
+        begin
+          do_create(params[:trace][:gpx_file], params[:trace][:tagstring],
+                    params[:trace][:description], params[:trace][:visibility])
+        rescue => ex
+          logger.debug ex
+        end

 
         if @trace.id
 
         if @trace.id

-          logger.info("id is #{@trace.id}")
-          flash[:notice] = t 'trace.create.trace_uploaded'
+          flash[:notice] = t "trace.create.trace_uploaded"
+
+          if @user.traces.where(:inserted => false).count > 4
+            flash[:warning] = t "trace.trace_header.traces_waiting", :count => @user.traces.where(:inserted => false).count
+          end

 
 

-          redirect_to :action => 'mine'
+          redirect_to :action => :list, :display_name => @user.display_name

         end
       else
         end
       else

-        @trace = Trace.new({:name => "Dummy",
-                            :tagstring => params[:trace][:tagstring],
-                            :description => params[:trace][:description],
-                            :visibility => params[:trace][:visibility],
-                            :inserted => false, :user => @user,
-                            :timestamp => Time.now.getutc})
+        @trace = Trace.new(:name => "Dummy",
+                           :tagstring => params[:trace][:tagstring],
+                           :description => params[:trace][:description],
+                           :visibility => params[:trace][:visibility],
+                           :inserted => false, :user => @user,
+                           :timestamp => Time.now.getutc)

         @trace.valid?
         @trace.errors.add(:gpx_file, "can't be blank")
       end
         @trace.valid?
         @trace.errors.add(:gpx_file, "can't be blank")
       end

+    else
+      @trace = Trace.new(:visibility => default_visibility)

     end
     end

-    @title = t 'trace.create.upload_trace'
+
+    @title = t "trace.create.upload_trace"

   end
 
   def data
     trace = Trace.find(params[:id])
 
   end
 
   def data
     trace = Trace.find(params[:id])
 

-    if trace.visible? and (trace.public? or (@user and @user == trace.user))
-      if request.format == Mime::XML
-        send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => Mime::XML.to_s, :disposition => 'attachment')
+    if trace.visible? && (trace.public? || (@user && @user == trace.user))
+      if Acl.no_trace_download(request.remote_ip)
+        render :text => "", :status => :forbidden
+      elsif request.format == Mime::XML
+        send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => request.format.to_s, :disposition => "attachment")
+      elsif request.format == Mime::GPX
+        send_file(trace.xml_file, :filename => "#{trace.id}.gpx", :type => request.format.to_s, :disposition => "attachment")

       else
       else

-        send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
+        send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => "attachment")

       end
     else
       end
     else

-      render :nothing => true, :status => :not_found
+      render :text => "", :status => :not_found

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    render :nothing => true, :status => :not_found
+    render :text => "", :status => :not_found

   end
 
   def edit
     @trace = Trace.find(params[:id])
 
   end
 
   def edit
     @trace = Trace.find(params[:id])
 

-    if @user and @trace.user == @user
-      @title = t 'trace.edit.title', :name => @trace.name
+    if !@trace.visible?
+      render :text => "", :status => :not_found
+    elsif @user.nil? || @trace.user != @user
+      render :text => "", :status => :forbidden
+    else
+      @title = t "trace.edit.title", :name => @trace.name
+

       if params[:trace]
         @trace.description = params[:trace][:description]
         @trace.tagstring = params[:trace][:tagstring]
         @trace.visibility = params[:trace][:visibility]
         if @trace.save
       if params[:trace]
         @trace.description = params[:trace][:description]
         @trace.tagstring = params[:trace][:tagstring]
         @trace.visibility = params[:trace][:visibility]
         if @trace.save

-          redirect_to :action => 'view'
-        end        
+          redirect_to :action => "view", :display_name => @user.display_name
+        end

       end
       end

-    else
-      render :nothing => true, :status => :forbidden

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    render :nothing => true, :status => :not_found
+    render :text => "", :status => :not_found

   end
 
   def delete
     trace = Trace.find(params[:id])
 
   end
 
   def delete
     trace = Trace.find(params[:id])
 

-    if @user and trace.user == @user
-      if request.post? and trace.visible?
-        trace.visible = false
-        trace.save
-        flash[:notice] = t 'trace.delete.scheduled_for_deletion'
-        redirect_to :controller => 'traces', :action => 'mine'
-      else
-        render :nothing => true, :status => :bad_request
-      end
+    if !trace.visible?
+      render :text => "", :status => :not_found
+    elsif @user.nil? || trace.user != @user
+      render :text => "", :status => :forbidden

     else
     else

-      render :nothing => true, :status => :forbidden
+      trace.visible = false
+      trace.save
+      flash[:notice] = t "trace.delete.scheduled_for_deletion"
+      redirect_to :action => :list, :display_name => @user.display_name

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    render :nothing => true, :status => :not_found
+    render :text => "", :status => :not_found

   end
 
   def georss
   end
 
   def georss

-    conditions = ["gpx_files.visibility <> 'private'"]
+    @traces = Trace.visible_to_all.visible

 
     if params[:display_name]
 
     if params[:display_name]

-      conditions[0] += " AND users.display_name = ?"
-      conditions << params[:display_name]
-    end
-
-    if params[:tag]
-      conditions[0] += " AND EXISTS (SELECT * FROM gpx_file_tags AS gft WHERE gft.gpx_id = gpx_files.id AND gft.tag = ?)"
-      conditions << params[:tag]
-    end
-
-    traces = Trace.find(:all, :include => :user, :conditions => conditions, 
-                        :order => "timestamp DESC", :limit => 20)
-
-    rss = OSM::GeoRSS.new
-
-    traces.each do |trace|
-      rss.add(trace.latitude, trace.longitude, trace.name, trace.user.display_name, url_for({:controller => 'trace', :action => 'view', :id => trace.id, :display_name => trace.user.display_name}), "<img src='#{url_for({:controller => 'trace', :action => 'icon', :id => trace.id, :user_login => trace.user.display_name})}'> GPX file with #{trace.size} points from #{trace.user.display_name}", trace.timestamp)
+      @traces = @traces.joins(:user).where(:users => { :display_name => params[:display_name] })

     end
 
     end
 

-    render :text => rss.to_s, :content_type => "application/rss+xml"
+    @traces = @traces.tagged(params[:tag]) if params[:tag]
+    @traces = @traces.order("timestamp DESC")
+    @traces = @traces.limit(20)
+    @traces = @traces.includes(:user)

   end
 
   def picture
     trace = Trace.find(params[:id])
 
   end
 
   def picture
     trace = Trace.find(params[:id])
 

-    if trace.inserted?
-      if trace.public? or (@user and @user == trace.user)
+    if trace.visible? && trace.inserted?
+      if trace.public? || (@user && @user == trace.user)

         expires_in 7.days, :private => !trace.public?, :public => trace.public?
         expires_in 7.days, :private => !trace.public?, :public => trace.public?

-        send_file(trace.large_picture_name, :filename => "#{trace.id}.gif", :type => 'image/gif', :disposition => 'inline')
+        send_file(trace.large_picture_name, :filename => "#{trace.id}.gif", :type => "image/gif", :disposition => "inline")

       else
       else

-        render :nothing => true, :status => :forbidden
+        render :text => "", :status => :forbidden

       end
     else
       end
     else

-      render :nothing => true, :status => :not_found
+      render :text => "", :status => :not_found

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    render :nothing => true, :status => :not_found
+    render :text => "", :status => :not_found

   end
 
   def icon
     trace = Trace.find(params[:id])
 
   end
 
   def icon
     trace = Trace.find(params[:id])
 

-    if trace.inserted?
-      if trace.public? or (@user and @user == trace.user)
+    if trace.visible? && trace.inserted?
+      if trace.public? || (@user && @user == trace.user)

         expires_in 7.days, :private => !trace.public?, :public => trace.public?
         expires_in 7.days, :private => !trace.public?, :public => trace.public?

-        send_file(trace.icon_picture_name, :filename => "#{trace.id}_icon.gif", :type => 'image/gif', :disposition => 'inline')
+        send_file(trace.icon_picture_name, :filename => "#{trace.id}_icon.gif", :type => "image/gif", :disposition => "inline")

       else
       else

-        render :nothing => true, :status => :forbidden
+        render :text => "", :status => :forbidden

       end
     else
       end
     else

-      render :nothing => true, :status => :not_found
+      render :text => "", :status => :not_found

     end
   rescue ActiveRecord::RecordNotFound
     end
   rescue ActiveRecord::RecordNotFound

-    render :nothing => true, :status => :not_found
+    render :text => "", :status => :not_found

   end
 
   end
 

-  def api_details
-    trace = Trace.find(params[:id])
+  def api_read
+    trace = Trace.visible.find(params[:id])

 
 

-    if trace.public? or trace.user == @user
+    if trace.public? || trace.user == @user

       render :text => trace.to_xml.to_s, :content_type => "text/xml"
     else
       render :text => trace.to_xml.to_s, :content_type => "text/xml"
     else

-      render :nothing => true, :status => :forbidden
+      render :text => "", :status => :forbidden
+    end
+  end
+
+  def api_update
+    trace = Trace.visible.find(params[:id])
+
+    if trace.user == @user
+      new_trace = Trace.from_xml(request.raw_post)
+
+      unless new_trace && new_trace.id == trace.id
+        raise OSM::APIBadUserInput.new("The id in the url (#{trace.id}) is not the same as provided in the xml (#{new_trace.id})")
+      end
+
+      trace.description = new_trace.description
+      trace.tags = new_trace.tags
+      trace.visibility = new_trace.visibility
+      trace.save!
+
+      render :text => "", :status => :ok
+    else
+      render :text => "", :status => :forbidden
+    end
+  end
+
+  def api_delete
+    trace = Trace.visible.find(params[:id])
+
+    if trace.user == @user
+      trace.visible = false
+      trace.save!
+
+      render :text => "", :status => :ok
+    else
+      render :text => "", :status => :forbidden

     end
     end

-  rescue ActiveRecord::RecordNotFound
-    render :nothing => true, :status => :not_found

   end
 
   def api_data
   end
 
   def api_data

-    trace = Trace.find(params[:id])
+    trace = Trace.visible.find(params[:id])

 
 

-    if trace.public? or trace.user == @user
-      send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => 'attachment')
+    if trace.public? || trace.user == @user
+      if request.format == Mime::XML
+        send_file(trace.xml_file, :filename => "#{trace.id}.xml", :type => request.format.to_s, :disposition => "attachment")
+      elsif request.format == Mime::GPX
+        send_file(trace.xml_file, :filename => "#{trace.id}.gpx", :type => request.format.to_s, :disposition => "attachment")
+      else
+        send_file(trace.trace_name, :filename => "#{trace.id}#{trace.extension_name}", :type => trace.mime_type, :disposition => "attachment")
+      end

     else
     else

-      render :nothing => true, :status => :forbidden
+      render :text => "", :status => :forbidden

     end
     end

-  rescue ActiveRecord::RecordNotFound
-    render :nothing => true, :status => :not_found

   end
 
   def api_create
   end
 
   def api_create

-    if request.post?
-      tags = params[:tags] || ""
-      description = params[:description] || ""
-      visibility = params[:visibility] || false
+    tags = params[:tags] || ""
+    description = params[:description] || ""
+    visibility = params[:visibility]
+
+    if visibility.nil?
+      visibility = if params[:public] && params[:public].to_i.nonzero?
+                     "public"
+                   else
+                     "private"
+                   end
+    end

 
 

-      if params[:public] && !visibility
-        visibility = "public"
-      end
-      
-      if params[:file].respond_to?(:read)
-        do_create(params[:file], tags, description, visibility)
+    if params[:file].respond_to?(:read)
+      do_create(params[:file], tags, description, visibility)

 
 

-        if @trace.id
-          render :text => @trace.id.to_s, :content_type => "text/plain"
-        elsif @trace.valid?
-          render :nothing => true, :status => :internal_server_error
-        else
-          render :nothing => true, :status => :bad_request
-        end
+      if @trace.id
+        render :text => @trace.id.to_s, :content_type => "text/plain"
+      elsif @trace.valid?
+        render :text => "", :status => :internal_server_error

       else
       else

-        render :nothing => true, :status => :bad_request
+        render :text => "", :status => :bad_request

       end
     else
       end
     else

-      render :nothing => true, :status => :method_not_allowed
+      render :text => "", :status => :bad_request

     end
   end
 
     end
   end
 

-private
+  private

 
   def do_create(file, tags, description, visibility)
     # Sanitise the user's filename
 
   def do_create(file, tags, description, visibility)
     # Sanitise the user's filename

-    name = file.original_filename.gsub(/[^a-zA-Z0-9.]/, '_')
+    name = file.original_filename.gsub(/[^a-zA-Z0-9.]/, "_")

 
     # Get a temporary filename...
     filename = "/tmp/#{rand}"
 
     # ...and save the uploaded file to that location
 
     # Get a temporary filename...
     filename = "/tmp/#{rand}"
 
     # ...and save the uploaded file to that location

-    File.open(filename, "w") { |f| f.write(file.read) }
+    File.open(filename, "wb") { |f| f.write(file.read) }

 
     # Create the trace object, falsely marked as already
     # inserted to stop the import daemon trying to load it
 
     # Create the trace object, falsely marked as already
     # inserted to stop the import daemon trying to load it

-    @trace = Trace.new({
+    @trace = Trace.new(

       :name => name,
       :tagstring => tags,
       :description => description,
       :name => name,
       :tagstring => tags,
       :description => description,


@@ -337,29 +357,62 @@ private
       :inserted => true,
       :user => @user,
       :timestamp => Time.now.getutc
       :inserted => true,
       :user => @user,
       :timestamp => Time.now.getutc

-    })
+    )

 
 

-    # Save the trace object
-    if @trace.save
-      # Rename the temporary file to the final name
-      FileUtils.mv(filename, @trace.trace_name)
+    Trace.transaction do
+      begin
+        # Save the trace object
+        @trace.save!

 
 

-      # Clear the inserted flag to make the import daemon load the trace
-      @trace.inserted = false
-      @trace.save!
-    else
-      # Remove the file as we have failed to update the database
-      FileUtils.rm_f(filename)
+        # Rename the temporary file to the final name
+        FileUtils.mv(filename, @trace.trace_name)
+      rescue StandardError
+        # Remove the file as we have failed to update the database
+        FileUtils.rm_f(filename)
+
+        # Pass the exception on
+        raise
+      end
+
+      begin
+        # Clear the inserted flag to make the import daemon load the trace
+        @trace.inserted = false
+        @trace.save!
+      rescue StandardError
+        # Remove the file as we have failed to update the database
+        FileUtils.rm_f(@trace.trace_name)
+
+        # Pass the exception on
+        raise
+      end

     end
     end

-    
-    # Finally save the user's preferred previacy level
-    if pref = @user.preferences.find(:first, :conditions => {:k => "gps.trace.visibility"})
+
+    # Finally save the user's preferred privacy level
+    if pref = @user.preferences.where(:k => "gps.trace.visibility").first

       pref.v = visibility
       pref.save
     else
       @user.preferences.create(:k => "gps.trace.visibility", :v => visibility)
     end
       pref.v = visibility
       pref.save
     else
       @user.preferences.create(:k => "gps.trace.visibility", :v => visibility)
     end

-    

   end
 
   end
 

+  def offline_warning
+    flash.now[:warning] = t "trace.offline_warning.message" if STATUS == :gpx_offline
+  end
+
+  def offline_redirect
+    redirect_to :action => :offline if STATUS == :gpx_offline
+  end
+
+  def default_visibility
+    visibility = @user.preferences.where(:k => "gps.trace.visibility").first
+
+    if visibility
+      visibility.v
+    elsif @user.preferences.where(:k => "gps.trace.public", :v => "default").first.nil?
+      "private"
+    else
+      "public"
+    end
+  end

 end
 end