Add inverse_of to relationships that can't detect it automatically

[rails.git] / app / models / way.rb

diff --git a/app/models/way.rb b/app/models/way.rb
index 3284c47f37312aed1215b64298e108ba86720c6b..0c6e645b7e2ce40f89bf81ca2002a5c056550cf2 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -17,20 +17,19 @@
 #  current_ways_changeset_id_fkey  (changeset_id => changesets.id)
 #
 
-class Way < ActiveRecord::Base
+class Way < ApplicationRecord
   require "xml/libxml"
 
   include ConsistencyValidations
   include NotRedactable
-  include ObjectMetadata
 
   self.table_name = "current_ways"
 
   belongs_to :changeset
 
-  has_many :old_ways, -> { order(:version) }
+  has_many :old_ways, -> { order(:version) }, :inverse_of => :current_way
 
-  has_many :way_nodes, -> { order(:sequence_id) }
+  has_many :way_nodes, -> { order(:sequence_id) }, :inverse_of => :way
   has_many :nodes, :through => :way_nodes
 
   has_many :way_tags
@@ -52,19 +51,21 @@ class Way < ActiveRecord::Base
   scope :invisible, -> { where(:visible => false) }
 
   # Read in xml as text and return it's Way object representation
-  def self.from_xml(xml, create = false)
+  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/way")
 
-    doc.find("//osm/way").each do |pt|
-      return Way.from_xml_node(pt, create)
+    if pt
+      Way.from_xml_node(pt, :create => create)
+    else
+      raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/way element.")
     end
-    raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/way element.")
   rescue LibXML::XML::Error, ArgumentError => e
     raise OSM::APIBadXMLError.new("way", xml, e.message)
   end
 
-  def self.from_xml_node(pt, create = false)
+  def self.from_xml_node(pt, create: false)
     way = Way.new
 
     raise OSM::APIBadXMLError.new("way", pt, "Version is required when updating") unless create || !pt["version"].nil?
@@ -111,12 +112,10 @@ class Way < ActiveRecord::Base
   end
 
   def tags
-    @tags ||= Hash[way_tags.collect { |t| [t.k, t.v] }]
+    @tags ||= way_tags.to_h { |t| [t.k, t.v] }
   end
 
-  attr_writer :nds
-
-  attr_writer :tags
+  attr_writer :nds, :tags
 
   def add_nd_num(n)
     @nds ||= []