class Node < ActiveRecord::Base
require 'xml/libxml'
-
include GeoRecord
set_table_name 'current_nodes'
validates_numericality_of :latitude, :longitude
validate :validate_position
- belongs_to :user
-
has_many :old_nodes, :foreign_key => :id
-
has_many :way_nodes
- has_many :ways, :through => :way_nodes
-
+ has_many :node_tags, :foreign_key => :id
+ belongs_to :user
+
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
-
- # Sanity check the latitude and longitude and add an error if it's broken
+
def validate_position
errors.add_to_base("Node is not in the world") unless in_world?
end
p = XML::Parser.new
p.string = xml
doc = p.parse
-
- node = Node.new
doc.find('//osm/node').each do |pt|
- node.lat = pt['lat'].to_f
- node.lon = pt['lon'].to_f
+ return Node.from_xml_node(pt, create)
+ end
+ rescue
+ return nil
+ end
+ end
- return nil unless node.in_world?
+ def self.from_xml_node(pt, create=false)
+ node = Node.new
+
+ node.version = pt['version']
+ node.lat = pt['lat'].to_f
+ node.lon = pt['lon'].to_f
- unless create
- if pt['id'] != '0'
- node.id = pt['id'].to_i
- end
- end
+ return nil unless node.in_world?
- node.visible = pt['visible'] and pt['visible'] == 'true'
+ unless create
+ if pt['id'] != '0'
+ node.id = pt['id'].to_i
+ end
+ end
- if create
- node.timestamp = Time.now
- else
- if pt['timestamp']
- node.timestamp = Time.parse(pt['timestamp'])
- end
- end
+ node.visible = pt['visible'] and pt['visible'] == 'true'
- tags = []
+ if create
+ node.timestamp = Time.now
+ else
+ if pt['timestamp']
+ node.timestamp = Time.parse(pt['timestamp'])
+ end
+ end
- pt.find('tag').each do |tag|
- tags << [tag['k'],tag['v']]
- end
+ tags = []
- node.tags = Tags.join(tags)
- end
- rescue
- node = nil
+ pt.find('tag').each do |tag|
+ node.add_tag_key_val(tag['k'],tag['v'])
end
return node
end
- # Save this node with the appropriate OldNode object to represent it's history.
def save_with_history!
+ t = Time.now
Node.transaction do
- self.timestamp = Time.now
+ self.version += 1
+ self.timestamp = t
self.save!
+
+ # Create a NodeTag
+ tags = self.tags
+ NodeTag.delete_all(['id = ?', self.id])
+ tags.each do |k,v|
+ tag = NodeTag.new
+ tag.k = k
+ tag.v = v
+ tag.id = self.id
+ tag.save!
+ end
+
+ # Create an OldNode
old_node = OldNode.from_node(self)
- old_node.save!
+ old_node.timestamp = t
+ old_node.save_with_dependencies!
+ end
+ end
+
+ def delete_with_history(user)
+ if self.visible
+ if WayNode.find(:first, :joins => "INNER JOIN current_ways ON current_ways.id = current_way_nodes.id", :conditions => [ "current_ways.visible = 1 AND current_way_nodes.node_id = ?", self.id ])
+ raise OSM::APIPreconditionFailedError.new
+ elsif RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = 1 AND member_type='node' and member_id=?", self.id])
+ raise OSM::APIPreconditionFailedError.new
+ else
+ self.user_id = user.id
+ self.visible = 0
+ save_with_history!
+ end
+ else
+ raise OSM::APIAlreadyDeletedError.new
+ end
+ end
+
+ def update_from(new_node, user)
+ if new_node.version != version
+ raise OSM::APIVersionMismatchError.new(new_node.version, version)
end
+
+ self.user_id = user.id
+ self.latitude = new_node.latitude
+ self.longitude = new_node.longitude
+ self.tags = new_node.tags
+ self.visible = true
+ save_with_history!
end
- # Turn this Node in to a complete OSM XML object with <osm> wrapper
def to_xml
doc = OSM::API.new.get_xml_doc
doc.root << to_xml_node()
return doc
end
- # Turn this Node in to an XML Node without the <osm> wrapper.
def to_xml_node(user_display_name_cache = nil)
el1 = XML::Node.new 'node'
el1['id'] = self.id.to_s
el1['user'] = user_display_name_cache[self.user_id] unless user_display_name_cache[self.user_id].nil?
- Tags.split(self.tags) do |k,v|
+ self.tags.each do |k,v|
el2 = XML::Node.new('tag')
el2['k'] = k.to_s
el2['v'] = v.to_s
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
+ el1['version'] = self.version.to_s
return el1
end
- # Return the node's tags as a Hash of keys and their values
def tags_as_hash
- hash = {}
- Tags.split(self.tags) do |k,v|
- hash[k] = v
+ return tags
+ end
+
+ def tags
+ unless @tags
+ @tags = {}
+ self.node_tags.each do |tag|
+ @tags[tag.k] = tag.v
+ end
end
- hash
+ @tags
+ end
+
+ def tags=(t)
+ @tags = t
+ end
+
+ def add_tag_key_val(k,v)
+ @tags = Hash.new unless @tags
+ @tags[k] = v
end
+
+
+
end
-class OldNode < ActiveRecord::Base
- include GeoRecord
-
+class OldNode < ActiveRecord::Base
+ include GeoRecord
set_table_name 'nodes'
validates_presence_of :user_id, :timestamp
old_node.timestamp = node.timestamp
old_node.user_id = node.user_id
old_node.id = node.id
+ old_node.version = node.version
return old_node
end
+
+ def to_xml
+ doc = OSM::API.new.get_xml_doc
+ doc.root << to_xml_node()
+ return doc
+ end
def to_xml_node
el1 = XML::Node.new 'node'
el1['lon'] = self.lon.to_s
el1['user'] = self.user.display_name if self.user.data_public?
- Tags.split(self.tags) do |k,v|
+ self.tags.each do |k,v|
el2 = XML::Node.new('tag')
el2['k'] = k.to_s
el2['v'] = v.to_s
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
+ el1['version'] = self.version.to_s
return el1
end
-
- def tags_as_hash
- hash = {}
- Tags.split(self.tags) do |k,v|
- hash[k] = v
+
+ def save_with_dependencies!
+ save!
+ #not sure whats going on here
+ clear_aggregation_cache
+ clear_association_cache
+ #ok from here
+ @attributes.update(OldNode.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes'))
+
+ self.tags.each do |k,v|
+ tag = OldNodeTag.new
+ tag.k = k
+ tag.v = v
+ tag.id = self.id
+ tag.version = self.version
+ tag.save!
end
- hash
end
- # Pretend we're not in any ways
- def ways
- return []
+ def tags
+ unless @tags
+ @tags = Hash.new
+ OldNodeTag.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version]).each do |tag|
+ @tags[tag.k] = tag.v
+ end
+ end
+ @tags = Hash.new unless @tags
+ @tags
end
- # Pretend we're not in any relations
- def containing_relation_members
- return []
- end
+ def tags=(t)
+ @tags = t
+ end
+ def tags_as_hash
+ hash = {}
+ Tags.split(self.tags) do |k,v|
+ hash[k] = v
+ end
+ hash
+ end
+
+ # Pretend we're not in any ways
+ def ways
+ return []
+ end
+
+ # Pretend we're not in any relations
+ def containing_relation_members
+ return []
+ end
end
module GeoRecord
+ # This scaling factor is used to convert between the float lat/lon that is
+ # returned by the API, and the integer lat/lon equivalent that is stored in
+ # the database.
+ SCALE = 10000000
+
def self.included(base)
base.extend(ClassMethods)
end
end
def lat=(l)
- self.latitude = (l * 10000000).round
+ self.latitude = (l * SCALE).round
end
def lon=(l)
- self.longitude = (l * 10000000).round
+ self.longitude = (l * SCALE).round
end
# Return WGS84 latitude
def lat
- return self.latitude.to_f / 10000000
+ return self.latitude.to_f / SCALE
end
# Return WGS84 longitude
def lon
- return self.longitude.to_f / 10000000
+ return self.longitude.to_f / SCALE
end
# Potlatch projections
invisible_node:
id: 2
- latitude: 2
- longitude: 2
+ latitude: <%= 2*SCALE %>
+ longitude: <%= 2*SCALE %>
user_id: 1
visible: 0
timestamp: 2007-01-01 00:00:00
used_node_1:
id: 3
- latitude: 3
- longitude: 3
+ latitude: <%= 3*SCALE %>
+ longitude: <%= 3*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
used_node_2:
id: 4
- latitude: 4
- longitude: 4
+ latitude: <%= 4*SCALE %>
+ longitude: <%= 4*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
node_used_by_relationship:
id: 5
- latitude: 5
- longitude: 5
+ latitude: <%= 5*SCALE %>
+ longitude: <%= 5*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
node_too_far_south:
id: 7
- latitude: -90
- longitude: 7
+ latitude: <%= -91*SCALE %>
+ longitude: <%= 7*SCALE %>
user_id: 1
timestamp: 2007-01-01 00:00:00
node_too_far_west:
id: 8
- latitude: 8
- longitude: -181
+ latitude: <%= 8*SCALE %>
+ longitude: <%= -181*SCALE %>
user_id: 1
timestamp: 2007-01-01 00:00:00
node_too_far_east:
id: 9
- latitude: 9
- longitude: 180
+ latitude: <%= 9*SCALE %>
+ longitude: <%= 181*SCALE %>
user_id: 1
timestamp: 2007-01-01 00:00:00
node_totally_wrong:
id: 10
- latitude: 1000
- longitude: 1000
+ latitude: <%= 1000*SCALE %>
+ longitude: <%= 1000*SCALE %>
user_id: 1
timestamp: 2007-01-01 00:00:00
# Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
visible_node:
id: 1
- latitude: 1
- longitude: 1
+ latitude: <%= 1*SCALE %>
+ longitude: <%= 1*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
invisible_node:
id: 2
- latitude: 2
- longitude: 2
+ latitude: <%= 2*SCALE %>
+ longitude: <%= 2*SCALE %>
user_id: 1
visible: 0
timestamp: 2007-01-01 00:00:00
used_node_1:
id: 3
- latitude: 3
- longitude: 3
+ latitude: <%= 3*SCALE %>
+ longitude: <%= 3*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
used_node_2:
id: 4
- latitude: 4
- longitude: 4
+ latitude: <%= 4*SCALE %>
+ longitude: <%= 4*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
node_used_by_relationship:
id: 5
- latitude: 5
- longitude: 5
+ latitude: <%= 5*SCALE %>
+ longitude: <%= 5*SCALE %>
user_id: 1
visible: 1
timestamp: 2007-01-01 00:00:00
set_fixture_class :currenr_node_tags => :NodeTag
def test_node_too_far_north
- noden = current_nodes(:node_too_far_north)
- assert_equal noden.lat, current_nodes(:node_too_far_north).latitude/SCALE
- assert_equal false, noden.valid?
+ node = current_nodes(:node_too_far_north)
+ assert_equal node.lat, current_nodes(:node_too_far_north).latitude/SCALE
+ assert_equal node.lon, current_nodes(:node_too_far_north).longitude/SCALE
+ assert_equal false, node.valid?
end
def test_node_too_far_south
node = current_nodes(:node_too_far_south)
- assert_valid node
+ assert_equal node.lat, current_nodes(:node_too_far_south).latitude/SCALE
+ assert_equal node.lon, current_nodes(:node_too_far_south).longitude/SCALE
+ assert_equal false, node.valid?
end
def test_node_too_far_west
node = current_nodes(:node_too_far_west)
- assert_valid node
+ assert_equal node.lat, current_nodes(:node_too_far_west).latitude/SCALE
+ assert_equal node.lon, current_nodes(:node_too_far_west).longitude/SCALE
+ assert_equal false, node.valid?
end
def test_node_too_far_east
node = current_nodes(:node_too_far_east)
- assert_valid node
+ assert_equal node.lat, current_nodes(:node_too_far_east).latitude/SCALE
+ assert_equal node.lon, current_nodes(:node_too_far_east).longitude/SCALE
+ assert_equal false, node.valid?
end
def test_totally_wrong
node = current_nodes(:node_totally_wrong)
- assert_valid node
+ #assert_equal node.lat, current_nodes(:node_totally_wrong).latitude/SCALE
+ #assert_equal node.lon, current_nodes(:node_totally_wrong).longitude/SCALE
+ assert_equal false, node.valid?
end
def test_create
projects / rails.git / commitdiff