X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/721dd9c27d299455b9159457a095716f797389f1..c273b4b1faa6dd3d8aba3d5556605f683326948a:/app/models/way.rb diff --git a/app/models/way.rb b/app/models/way.rb index 86b25e08e..40a024b8b 100644 --- a/app/models/way.rb +++ b/app/models/way.rb @@ -27,14 +27,13 @@ class Way < ActiveRecord::Base def self.from_xml(xml, create=false) begin - p = XML::Parser.new - p.string = xml + p = XML::Parser.string(xml) doc = p.parse doc.find('//osm/way').each do |pt| return Way.from_xml_node(pt, create) end - rescue LibXML::XML::Error => ex + rescue LibXML::XML::Error, ArgumentError => ex raise OSM::APIBadXMLError.new("way", xml, ex.message) end end @@ -52,7 +51,7 @@ class Way < ActiveRecord::Base # This next section isn't required for the create, update, or delete of ways if create - way.timestamp = Time.now + way.timestamp = Time.now.getutc way.visible = true else if pt['timestamp'] @@ -90,7 +89,7 @@ class Way < ActiveRecord::Base return doc end - def to_xml_node(visible_nodes = nil, user_display_name_cache = nil) + def to_xml_node(visible_nodes = nil, changeset_cache = {}, user_display_name_cache = {}) el1 = XML::Node.new 'way' el1['id'] = self.id.to_s el1['visible'] = self.visible.to_s @@ -98,19 +97,25 @@ class Way < ActiveRecord::Base el1['version'] = self.version.to_s el1['changeset'] = self.changeset_id.to_s - user_display_name_cache = {} if user_display_name_cache.nil? + if changeset_cache.key?(self.changeset_id) + # use the cache if available + else + changeset_cache[self.changeset_id] = self.changeset.user_id + end + + user_id = changeset_cache[self.changeset_id] - if user_display_name_cache and user_display_name_cache.key?(self.changeset.user_id) + if user_display_name_cache.key?(user_id) # use the cache if available elsif self.changeset.user.data_public? - user_display_name_cache[self.changeset.user_id] = self.changeset.user.display_name + user_display_name_cache[user_id] = self.changeset.user.display_name else - user_display_name_cache[self.changeset.user_id] = nil + user_display_name_cache[user_id] = nil end - if not user_display_name_cache[self.changeset.user_id].nil? - el1['user'] = user_display_name_cache[self.changeset.user_id] - el1['uid'] = self.changeset.user_id.to_s + if not user_display_name_cache[user_id].nil? + el1['user'] = user_display_name_cache[user_id] + el1['uid'] = user_id.to_s end # make sure nodes are output in sequence_id order @@ -200,10 +205,12 @@ class Way < ActiveRecord::Base def update_from(new_way, user) check_consistency(self, new_way, user) - if !new_way.preconditions_ok? - raise OSM::APIPreconditionFailedError.new + unless new_way.preconditions_ok? + raise OSM::APIPreconditionFailedError.new("Cannot update way #{self.id}: data is invalid.") end + self.changeset_id = new_way.changeset_id + self.changeset = new_way.changeset self.tags = new_way.tags self.nds = new_way.nds self.visible = true @@ -212,8 +219,8 @@ class Way < ActiveRecord::Base def create_with_history(user) check_create_consistency(self, user) - if !self.preconditions_ok? - raise OSM::APIPreconditionFailedError.new + unless self.preconditions_ok? + raise OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.") end self.version = 0 self.visible = true @@ -223,12 +230,12 @@ class Way < ActiveRecord::Base def preconditions_ok? return false if self.nds.empty? if self.nds.length > APP_CONFIG['max_number_of_way_nodes'] - raise OSM::APITooManyWayNodesError.new(self.nds.count, APP_CONFIG['max_number_of_way_nodes']) + raise OSM::APITooManyWayNodesError.new(self.nds.length, APP_CONFIG['max_number_of_way_nodes']) end self.nds.each do |n| node = Node.find(:first, :conditions => ["id = ?", n]) unless node and node.visible - raise OSM::APIPreconditionFailedError.new("The node with id #{n} either does not exist, or is not visible") + raise OSM::APIPreconditionFailedError.new("Way #{self.id} requires the node with id #{n}, which either does not exist, or is not visible.") end end return true @@ -236,7 +243,7 @@ class Way < ActiveRecord::Base def delete_with_history!(new_way, user) unless self.visible - raise OSM::APIAlreadyDeletedError + raise OSM::APIAlreadyDeletedError.new("way", new_way.id) end # need to start the transaction here, so that the database can @@ -244,31 +251,20 @@ class Way < ActiveRecord::Base # shouldn't be possible to get race conditions. Way.transaction do check_consistency(self, new_way, user) - if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", - :conditions => [ "visible = ? AND member_type='way' and member_id=? ", true, self.id]) - raise OSM::APIPreconditionFailedError.new("You need to make sure that this way is not a member of a relation.") - else - self.changeset_id = new_way.changeset_id - self.tags = [] - self.nds = [] - self.visible = false - save_with_history! - end + rel = RelationMember.find(:first, :joins => :relation, + :conditions => [ "visible = ? AND member_type='Way' and member_id=? ", true, self.id]) + raise OSM::APIPreconditionFailedError.new("Way #{self.id} still used by relation #{rel.relation.id}.") if rel + + self.changeset_id = new_way.changeset_id + self.changeset = new_way.changeset + + self.tags = [] + self.nds = [] + self.visible = false + save_with_history! end end - # Find nodes that belong to this way only - def unshared_node_ids - node_ids = self.nodes.collect { |node| node.id } - - unless node_ids.empty? - way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}") - node_ids = node_ids - way_nodes.collect { |way_node| way_node.node_id } - end - - return node_ids - end - # Temporary method to match interface to nodes def tags_as_hash return self.tags @@ -278,11 +274,11 @@ class Way < ActiveRecord::Base # if any referenced nodes are placeholder IDs (i.e: are negative) then # this calling this method will fix them using the map from placeholders # to IDs +id_map+. - def fix_placeholders!(id_map) + def fix_placeholders!(id_map, placeholder_id = nil) self.nds.map! do |node_id| if node_id < 0 new_id = id_map[:node][node_id] - raise "invalid placeholder for #{node_id.inspect}: #{new_id.inspect}" if new_id.nil? + raise OSM::APIBadUserInput.new("Placeholder node not found for reference #{node_id} in way #{self.id.nil? ? placeholder_id : self.id}") if new_id.nil? new_id else node_id @@ -293,13 +289,14 @@ class Way < ActiveRecord::Base private def save_with_history! - t = Time.now + t = Time.now.getutc - # update the bounding box, but don't save it as the controller knows the - # lifetime of the change better. note that this has to be done both before + # update the bounding box, note that this has to be done both before # and after the save, so that nodes from both versions are included in the - # bbox. - changeset.update_bbox!(bbox) unless nodes.empty? + # bbox. we use a copy of the changeset so that it isn't reloaded + # later in the save. + cs = self.changeset + cs.update_bbox!(bbox) unless nodes.empty? Way.transaction do self.version += 1 @@ -331,14 +328,18 @@ class Way < ActiveRecord::Base old_way.timestamp = t old_way.save_with_dependencies! + # reload the way so that the nodes array points to the correct + # new set of nodes. + self.reload + # update and commit the bounding box, now that way nodes # have been updated and we're in a transaction. - changeset.update_bbox!(bbox) unless nodes.empty? + cs.update_bbox!(bbox) unless nodes.empty? # tell the changeset we updated one element only - changeset.add_changes! 1 + cs.add_changes! 1 - changeset.save! + cs.save! end end