prevent update of any object without providing the correct/current

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

diff --git a/app/controllers/node_controller.rb b/app/controllers/node_controller.rb
index edc3675e58382fce0b8b5801a2e7180ab280cec2..fa6759c3b5debb59e601a7bd519d401ac352dfd9 100644 (file)
--- a/app/controllers/node_controller.rb
+++ b/app/controllers/node_controller.rb
@@ -15,6 +15,7 @@ class NodeController < ApplicationController
       node = Node.from_xml(request.raw_post, true)
 
       if node
+        node.version = 0
         node.user_id = @user.id
         node.visible = true
         node.save_with_history!
@@ -48,16 +49,14 @@ class NodeController < ApplicationController
     begin
       node = Node.find(params[:id])
       new_node = Node.from_xml(request.raw_post)
+      if new_node.version != node.version
+        render :text => "Version mismatch: Provided " + new_node.version.to_s + ", server had: " + node.version.to_s, :status => :bad_request
+        return
+      end  
 
       if new_node and new_node.id == node.id
-        node.user_id = @user.id
-        node.latitude = new_node.latitude 
-        node.longitude = new_node.longitude
-        node.tags = new_node.tags
-        node.visible = true
-        node.save_with_history!
-
-        render :nothing => true
+        node.update_from(new_node, @user)
+        render :text => node.version.to_s, :content_type => "text/plain"
       else
         render :nothing => true, :status => :bad_request
       end
@@ -71,24 +70,13 @@ class NodeController < ApplicationController
   def delete
     begin
       node = Node.find(params[:id])
-
-      if node.visible
-        if WayNode.find(:first, :joins => "INNER JOIN current_ways ON current_ways.id = current_way_nodes.id", :conditions => [ "current_ways.visible = 1 AND current_way_nodes.node_id = ?", node.id ])
-          render :text => "", :status => :precondition_failed
-        elsif RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='node' and member_id=?", params[:id]])
-          render :text => "", :status => :precondition_failed
-        else
-          node.user_id = @user.id
-          node.visible = 0
-          node.save_with_history!
-
-          render :nothing => true
-        end
-      else
-        render :text => "", :status => :gone
-      end
+      node.delete_with_history(@user)
     rescue ActiveRecord::RecordNotFound
       render :nothing => true, :status => :not_found
+    rescue OSM::APIAlreadyDeletedError
+      render :text => "", :status => :gone
+    rescue OSM::APIPreconditionFailedError
+      render :text => "", :status => :precondition_failed
     end
   end