-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
include NotRedactable
+ include ObjectMetadata
self.table_name = "current_nodes"
belongs_to :changeset
- has_many :old_nodes, :order => :version
+ has_many :old_nodes, -> { order(:version) }
has_many :way_nodes
has_many :ways, :through => :way_nodes
has_many :node_tags
-
+
has_many :old_way_nodes
- has_many :ways_via_history, :class_name=> "Way", :through => :old_way_nodes, :source => :way
+ has_many :ways_via_history, :class_name => "Way", :through => :old_way_nodes, :source => :way
has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
- has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation, :extend => ObjectFinder
-
- 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
+ has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation
+
+ 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)
+ scope :visible, -> { where(:visible => true) }
+ scope :invisible, -> { where(:visible => false) }
# Sanity check the latitude and longitude and add an error if it's broken
def validate_position
errors.add(:base, "Node is not in the world") unless in_world?
end
- #
- # Search for nodes matching tags within bounding_box
- #
- # Also adheres to limitations such as within max_number_of_nodes
- #
- def self.search(bounding_box, tags = {})
- # @fixme a bit of a hack to search for only visible nodes
- # couldn't think of another to add to tags condition
- #conditions_hash = tags.merge({ 'visible' => 1 })
-
- # using named placeholders http://www.robbyonrails.com/articles/2005/10/21/using-named-placeholders-in-ruby
- #keys = []
- #values = {}
-
- #conditions_hash.each do |key,value|
- # keys << "#{key} = :#{key}"
- # values[key.to_sym] = value
- #end
- #conditions = keys.join(' AND ')
-
- find_by_area(bounding_box, :conditions => {:visible => true},
- :limit => MAX_NUMBER_OF_NODES+1)
- end
-
# Read in xml as text and return it's Node object representation
- def self.from_xml(xml, create=false)
- begin
- p = XML::Parser.string(xml)
- doc = p.parse
+ def self.from_xml(xml, create: false)
+ 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)
- end
+ if pt
+ Node.from_xml_node(pt, :create => create)
+ else
raise 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)
end
+ rescue LibXML::XML::Error, ArgumentError => e
+ raise OSM::APIBadXMLError.new("node", xml, e.message)
end
- def self.from_xml_node(pt, create=false)
+ def self.from_xml_node(pt, create: false)
node = Node.new
-
- 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 = pt['lat'].to_f
- node.lon = pt['lon'].to_f
- raise OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt['changeset'].nil?
- node.changeset_id = pt['changeset'].to_i
- raise OSM::APIBadUserInput.new("The node is outside this world") unless node.in_world?
+ 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
+
+ raise OSM::APIBadUserInput, "The node is outside this world" unless node.in_world?
# version must be present unless creating
- raise OSM::APIBadXMLError.new("node", pt, "Version is required when updating") unless create or not 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
- 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.
+ 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
- raise 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.visible = true
# Start with no tags
- node.tags = Hash.new
+ node.tags = {}
# Add in any tags from the XML
- 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'])
+ 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
- return node
+ node
end
##
# Should probably be renamed delete_from to come in line with update
def delete_with_history!(new_node, user)
- unless self.visible
- raise 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
+ # 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)
- raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by ways #{ways.collect { |w| w.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)
- raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by relations #{rels.collect { |r| r.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 = {}
self.visible = false
-
+
# update the changeset with the deleted position
changeset.update_bbox!(bbox)
-
+
save_with_history!
end
end
def update_from(new_node, user)
Node.transaction do
- self.lock!
+ lock!
check_consistency(self, new_node, user)
-
+
# update changeset first
self.changeset_id = new_node.changeset_id
self.changeset = new_node.changeset
-
+
# update changeset bbox with *old* position first
- changeset.update_bbox!(bbox);
-
- # FIXME logic needs to be double checked
- self.latitude = new_node.latitude
+ changeset.update_bbox!(bbox)
+
+ # FIXME: logic needs to be double checked
+ self.latitude = new_node.latitude
self.longitude = new_node.longitude
self.tags = new_node.tags
self.visible = true
-
+
# update changeset bbox with *new* position
- changeset.update_bbox!(bbox);
-
+ changeset.update_bbox!(bbox)
+
save_with_history!
end
end
-
+
def create_with_history(user)
check_create_consistency(self, user)
self.version = 0
save_with_history!
end
- def to_xml
- doc = OSM::API.new.get_xml_doc
- doc.root << to_xml_node()
- return doc
- end
-
- def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
- el1 = XML::Node.new 'node'
- el1['id'] = self.id.to_s
- el1['lat'] = self.lat.to_s
- el1['lon'] = self.lon.to_s
- el1['version'] = self.version.to_s
- el1['changeset'] = self.changeset_id.to_s
-
- 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.key?(user_id)
- # use the cache if available
- elsif self.changeset.user.data_public?
- user_display_name_cache[user_id] = self.changeset.user.display_name
- else
- user_display_name_cache[user_id] = nil
- end
-
- if not user_display_name_cache[user_id].nil?
- el1['user'] = user_display_name_cache[user_id]
- el1['uid'] = user_id.to_s
- end
-
- self.tags.each do |k,v|
- el2 = XML::Node.new('tag')
- el2['k'] = k.to_s
- el2['v'] = v.to_s
- el1 << el2
- end
-
- el1['visible'] = self.visible.to_s
- el1['timestamp'] = self.timestamp.xmlschema
- return el1
- end
-
def tags_as_hash
- return tags
+ tags
end
def tags
- unless @tags
- @tags = {}
- self.node_tags.each do |tag|
- @tags[tag.k] = tag.v
- end
- end
- @tags
+ @tags ||= Hash[node_tags.collect { |t| [t.k, t.v] }]
end
- def tags=(t)
- @tags = t
- end
+ attr_writer :tags
- def add_tag_key_val(k,v)
- @tags = Hash.new unless @tags
+ def add_tag_key_val(k, v)
+ @tags ||= {}
# duplicate tags are now forbidden, so we can't allow values
# in the hash to be overwritten.
- raise OSM::APIDuplicateTagsError.new("node", self.id, k) if @tags.include? k
+ raise OSM::APIDuplicateTagsError.new("node", id, k) if @tags.include? k
@tags[k] = v
end
##
# dummy method to make the interfaces of node, way and relation
# more consistent.
- def fix_placeholders!(id_map, placeholder_id = nil)
+ def fix_placeholders!(_id_map, _placeholder_id = nil)
# nodes don't refer to anything, so there is nothing to do here
end
-
+
private
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 => self.id)
- tags.each do |k,v|
+ NodeTag.where(:node_id => id).delete_all
+ tags.each do |k, v|
tag = NodeTag.new
- tag.node_id = self.id
- tag.k = k
- tag.v = v
+ tag.node_id = id
+ tag.k = k
+ tag.v = v
tag.save!
- end
+ end
# Create an OldNode
old_node = OldNode.from_node(self)
changeset.save!
end
end
-
end
projects / rails.git / blobdiff