initial changeset support

app/controllers/changeset_controller.rb

@@ -0,0 +1,26 @@
+# The ChangesetController is the RESTful interface to Changeset objects
+
+class ChangesetController < ApplicationController
+  require 'xml/libxml'
+
+  before_filter :authorize, :only => [:create, :update, :delete]
+  before_filter :check_write_availability, :only => [:create, :update, :delete]
+  before_filter :check_read_availability, :except => [:create, :update, :delete]
+
+  # Create a changeset from XML.
+  def create
+    if request.put?
+      cs = Changeset.from_xml(request.raw_post, true)
+
+      if cs
+        cs.user_id = @user.id
+        cs.save_with_tags!
+        render :text => cs.id.to_s, :content_type => "text/plain"
+      else
+        render :nothing => true, :status => :bad_request
+      end
+    else
+      render :nothing => true, :status => :method_not_allowed
+    end
+  end
+end