-class Node < ActiveRecord::Base
- require 'xml/libxml'
+# == Schema Information
+#
+# Table name: current_nodes
+#
+# id :bigint(8) not null, primary key
+# latitude :integer not null
+# longitude :integer not null
+# changeset_id :bigint(8) not null
+# visible :boolean not null
+# timestamp :datetime not null
+# tile :bigint(8) not null
+# version :bigint(8) not null
+#
+# Indexes
+#
+# current_nodes_tile_idx (tile)
+# current_nodes_timestamp_idx (timestamp)
+#
+# Foreign Keys
+#
+# current_nodes_changeset_id_fkey (changeset_id => changesets.id)
+#
+
+class Node < ApplicationRecord
+ require "xml/libxml"
include GeoRecord
include ConsistencyValidations
has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation
- validates_presence_of :id, :on => :update
- validates_presence_of :timestamp, :version, :changeset_id
- validates_uniqueness_of :id
- validates_inclusion_of :visible, :in => [true, false]
- validates_numericality_of :latitude, :longitude, :changeset_id, :version, :integer_only => true
- validates_numericality_of :id, :on => :update, :integer_only => true
+ validates :id, :uniqueness => true, :presence => { :on => :update },
+ :numericality => { :on => :update, :only_integer => true }
+ validates :version, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :changeset_id, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :latitude, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :longitude, :presence => true,
+ :numericality => { :only_integer => true }
+ validates :timestamp, :presence => true
+ validates :changeset, :associated => true
+ validates :visible, :inclusion => [true, false]
+
validate :validate_position
- validates_associated :changeset
scope :visible, -> { where(:visible => true) }
scope :invisible, -> { where(:visible => false) }
# Read in xml as text and return it's Node object representation
def self.from_xml(xml, create = false)
- p = XML::Parser.string(xml)
+ p = XML::Parser.string(xml, :options => XML::Parser::Options::NOERROR)
doc = p.parse
+ pt = doc.find_first("//osm/node")
- doc.find('//osm/node').each do |pt|
- return Node.from_xml_node(pt, create)
+ if pt
+ Node.from_xml_node(pt, create)
+ else
+ raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/node element.")
end
- fail OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/node element.")
- rescue LibXML::XML::Error, ArgumentError => ex
- raise OSM::APIBadXMLError.new("node", xml, ex.message)
+ rescue LibXML::XML::Error, ArgumentError => e
+ raise OSM::APIBadXMLError.new("node", xml, e.message)
end
def self.from_xml_node(pt, create = false)
node = Node.new
- fail OSM::APIBadXMLError.new("node", pt, "lat missing") if pt['lat'].nil?
- fail OSM::APIBadXMLError.new("node", pt, "lon missing") if pt['lon'].nil?
- node.lat = OSM.parse_float(pt['lat'], OSM::APIBadXMLError, "node", pt, "lat not a number")
- node.lon = OSM.parse_float(pt['lon'], OSM::APIBadXMLError, "node", pt, "lon not a number")
- fail OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt['changeset'].nil?
- node.changeset_id = pt['changeset'].to_i
+ raise OSM::APIBadXMLError.new("node", pt, "lat missing") if pt["lat"].nil?
+ raise OSM::APIBadXMLError.new("node", pt, "lon missing") if pt["lon"].nil?
+
+ node.lat = OSM.parse_float(pt["lat"], OSM::APIBadXMLError, "node", pt, "lat not a number")
+ node.lon = OSM.parse_float(pt["lon"], OSM::APIBadXMLError, "node", pt, "lon not a number")
+ raise OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt["changeset"].nil?
+
+ node.changeset_id = pt["changeset"].to_i
- fail OSM::APIBadUserInput.new("The node is outside this world") unless node.in_world?
+ raise OSM::APIBadUserInput, "The node is outside this world" unless node.in_world?
# version must be present unless creating
- fail OSM::APIBadXMLError.new("node", pt, "Version is required when updating") unless create || !pt['version'].nil?
- node.version = create ? 0 : pt['version'].to_i
+ raise OSM::APIBadXMLError.new("node", pt, "Version is required when updating") unless create || !pt["version"].nil?
+
+ node.version = create ? 0 : pt["version"].to_i
unless create
- fail OSM::APIBadXMLError.new("node", pt, "ID is required when updating.") if pt['id'].nil?
- node.id = pt['id'].to_i
+ raise OSM::APIBadXMLError.new("node", pt, "ID is required when updating.") if pt["id"].nil?
+
+ node.id = pt["id"].to_i
# .to_i will return 0 if there is no number that can be parsed.
# We want to make sure that there is no id with zero anyway
- fail OSM::APIBadUserInput.new("ID of node cannot be zero when updating.") if node.id == 0
+ raise OSM::APIBadUserInput, "ID of node cannot be zero when updating." if node.id.zero?
end
# We don't care about the time, as it is explicitly set on create/update/delete
node.tags = {}
# Add in any tags from the XML
- pt.find('tag').each do |tag|
- fail OSM::APIBadXMLError.new("node", pt, "tag is missing key") if tag['k'].nil?
- fail OSM::APIBadXMLError.new("node", pt, "tag is missing value") if tag['v'].nil?
- node.add_tag_key_val(tag['k'], tag['v'])
+ pt.find("tag").each do |tag|
+ raise OSM::APIBadXMLError.new("node", pt, "tag is missing key") if tag["k"].nil?
+ raise OSM::APIBadXMLError.new("node", pt, "tag is missing value") if tag["v"].nil?
+
+ node.add_tag_key_val(tag["k"], tag["v"])
end
node
# Should probably be renamed delete_from to come in line with update
def delete_with_history!(new_node, user)
- unless visible
- fail OSM::APIAlreadyDeletedError.new("node", new_node.id)
- end
+ raise OSM::APIAlreadyDeletedError.new("node", new_node.id) unless visible
# need to start the transaction here, so that the database can
# provide repeatable reads for the used-by checks. this means it
# shouldn't be possible to get race conditions.
Node.transaction do
- self.lock!
+ lock!
check_consistency(self, new_node, user)
ways = Way.joins(:way_nodes).where(:visible => true, :current_way_nodes => { :node_id => id }).order(:id)
- fail OSM::APIPreconditionFailedError.new("Node #{id} is still used by ways #{ways.collect(&:id).join(",")}.") unless ways.empty?
+ raise OSM::APIPreconditionFailedError, "Node #{id} is still used by ways #{ways.collect(&:id).join(',')}." unless ways.empty?
rels = Relation.joins(:relation_members).where(:visible => true, :current_relation_members => { :member_type => "Node", :member_id => id }).order(:id)
- fail OSM::APIPreconditionFailedError.new("Node #{id} is still used by relations #{rels.collect(&:id).join(",")}.") unless rels.empty?
+ raise OSM::APIPreconditionFailedError, "Node #{id} is still used by relations #{rels.collect(&:id).join(',')}." unless rels.empty?
self.changeset_id = new_node.changeset_id
self.tags = {}
def update_from(new_node, user)
Node.transaction do
- self.lock!
+ lock!
check_consistency(self, new_node, user)
# update changeset first
# update changeset bbox with *old* position first
changeset.update_bbox!(bbox)
- # FIXME logic needs to be double checked
+ # FIXME: logic needs to be double checked
self.latitude = new_node.latitude
self.longitude = new_node.longitude
self.tags = new_node.tags
save_with_history!
end
- def to_xml
- doc = OSM::API.new.get_xml_doc
- doc.root << to_xml_node
- doc
- end
-
- def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
- el = XML::Node.new 'node'
- el['id'] = id.to_s
-
- add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
-
- if self.visible?
- el['lat'] = lat.to_s
- el['lon'] = lon.to_s
- end
-
- add_tags_to_xml_node(el, node_tags)
-
- el
- end
-
def tags_as_hash
tags
end
attr_writer :tags
def add_tag_key_val(k, v)
- @tags = {} unless @tags
+ @tags ||= {}
# duplicate tags are now forbidden, so we can't allow values
# in the hash to be overwritten.
- fail OSM::APIDuplicateTagsError.new("node", id, k) if @tags.include? k
+ raise OSM::APIDuplicateTagsError.new("node", id, k) if @tags.include? k
@tags[k] = v
end
def save_with_history!
t = Time.now.getutc
+
+ self.version += 1
+ self.timestamp = t
+
Node.transaction do
- self.version += 1
- self.timestamp = t
- self.save!
+ # clone the object before saving it so that the original is
+ # still marked as dirty if we retry the transaction
+ clone.save!
# Create a NodeTag
tags = self.tags
- NodeTag.delete_all(:node_id => id)
+ NodeTag.where(:node_id => id).delete_all
tags.each do |k, v|
tag = NodeTag.new
tag.node_id = id
projects / rails.git / blobdiff