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]
+ before_filter :authorize, :only => [:create, :update, :delete, :upload]
+ before_filter :check_write_availability, :only => [:create, :update, :delete, :upload]
+ before_filter :check_read_availability, :except => [:create, :update, :delete, :upload]
+ after_filter :compress_output
# Create a changeset from XML.
def create
render :nothing => true, :status => :method_not_allowed
end
end
+
+ def create_prim(ids, prim, nd)
+ prim.version = 0
+ prim.user_id = @user.id
+ prim.visible = true
+ prim.save_with_history!
+
+ ids[nd['id'].to_i] = prim.id
+ end
+
+ def fix_way(w, node_ids)
+ w.nds = w.instance_eval { @nds }.
+ map { |nd| node_ids[nd] || nd }
+ return w
+ end
+
+ def fix_rel(r, ids)
+ r.members = r.instance_eval { @members }.
+ map { |memb| [memb[0], ids[memb[0]][memb[1].to_i] || memb[1], memb[2]] }
+ return r
+ end
+
+ def read
+ begin
+ changeset = Changeset.find(params[:id])
+ render :text => changeset.to_xml.to_s, :content_type => "text/xml"
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+ end
+
+ def close
+ begin
+ if not request.put?
+ render :nothing => true, :status => :method_not_allowed
+ return
+ end
+ changeset = Changeset.find(params[:id])
+ changeset.open = false
+ changeset.save
+ render :nothing => true
+ rescue ActiveRecord::RecordNotFound
+ render :nothing => true, :status => :not_found
+ end
+ end
+
+ def upload
+ if not request.put?
+ render :nothing => true, :status => :method_not_allowed
+ return
+ end
+
+ # FIXME: this should really be done without loading the whole XML file
+ # into memory.
+ p = XML::Parser.new
+ p.string = request.raw_post
+ doc = p.parse
+
+ node_ids, way_ids, rel_ids = {}, {}, {}
+ ids = {"node"=>node_ids, "way"=>way_ids, "relation"=>rel_ids}
+
+ res = XML::Document.new
+ res.encoding = 'UTF-8'
+ root = XML::Node.new 'osm'
+ root['version'] = '0.6'
+ root['creator'] = 'OpenStreetMap.org'
+ res.root = root
+
+ root << XML::Node.new_comment(" Warning: this is a 0.6 result document, " +
+ "not a normal OSM file. ")
+
+ Changeset.transaction do
+ doc.find('//osm/create/node').each do |nd|
+ elem = XML::Node.new 'node'
+ node = Node.from_xml_node(nd, true)
+ elem['old_id'] = nd['id']
+ create_prim node_ids, node, nd
+ elem['new_id'] = node.id.to_s
+ elem['new_version'] = node.version.to_s
+ root << elem
+ end
+ doc.find('//osm/create/way').each do |nd|
+ elem = XML::Node.new 'way'
+ way = Way.from_xml_node(nd, true)
+ elem['old_id'] = nd['id']
+ fix_way(way, node_ids)
+ raise OSM::APIPreconditionFailedError.new if !way.preconditions_ok?
+ create_prim way_ids, way, nd
+ elem['new_id'] = way.id.to_s
+ elem['new_version'] = way.version.to_s
+ root << elem
+ end
+ doc.find('//osm/create/relation').each do |nd|
+ elem = XML::Node.new 'relation'
+ relation = Relation.from_xml_node(nd, true)
+ elem['old_id'] = nd['id']
+ fix_rel(relation, ids)
+ raise OSM::APIPreconditionFailedError.new if !relation.preconditions_ok?
+ create_prim rel_ids, relation, nd
+ elem['new_id'] = relation.id.to_s
+ elem['new_version'] = relation.version.to_s
+ root << elem
+ end
+
+ doc.find('//osm/modify/relation').each do |nd|
+ elem = XML::Node.new 'relation'
+ new_relation = Relation.from_xml_node(nd)
+ relation = Relation.find(new_relation.id)
+ relation.update_from new_relation, @user
+ elem['old_id'] = elem['new_id'] = relation.id.to_s
+ elem['new_version'] = relation.version.to_s
+ root << elem
+ end
+ doc.find('//osm/modify/way').each do |nd|
+ elem = XML::Node.new 'way'
+ new_way = Way.from_xml_node(nd)
+ way = Way.find(new_way.id)
+ way.update_from new_way, @user
+ elem['old_id'] = elem['new_id'] = way.id.to_s
+ elem['new_version'] = way.version.to_s
+ root << elem
+ end
+ doc.find('//osm/modify/node').each do |nd|
+ elem = XML::Node.new 'node'
+ new_node = Node.from_xml_node(nd)
+ node = Node.find(new_node.id)
+ node.update_from new_node, @user
+ elem['old_id'] = elem['new_id'] = node.id.to_s
+ elem['new_version'] = node.version.to_s
+ root << elem
+ end
+
+ doc.find('//osm/delete/relation').each do |nd|
+ elem = XML::Node.new 'relation'
+ relation = Relation.find(nd['id'])
+ relation.delete_with_history(@user)
+ elem['old_id'] = elem['new_id'] = relation.id.to_s
+ elem['new_version'] = relation.version.to_s
+ root << elem
+ end
+ doc.find('//osm/delete/way').each do |nd|
+ elem = XML::Node.new 'way'
+ way = Way.find(nd['id'])
+ way.delete_with_relations_and_history(@user)
+ elem['old_id'] = elem['new_id'] = way.id.to_s
+ elem['new_version'] = way.version.to_s
+ root << elem
+ end
+ doc.find('//osm/delete/node').each do |nd|
+ elem = XML::Node.new 'node'
+ new_node = Node.from_xml_node(nd)
+ node = Node.find(nd['id'])
+ node.delete_with_history(@user)
+ elem['old_id'] = elem['new_id'] = node.id.to_s
+ elem['new_version'] = node.version.to_s
+ root << elem
+ end
+ end
+
+ render :text => res.to_s, :content_type => "text/xml"
+ end
end
projects / rails.git / blobdiff