Merge pull request #35 from tomhughes/routing

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

diff --git a/app/models/way.rb b/app/models/way.rb
index 074ae3ba166e0833714164f66da7eda3b07a060e..e78d0df0b048b2143cf8038ed7027c0f711bcf31 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -12,12 +12,12 @@ class Way < ActiveRecord::Base
   has_many :old_ways, -> { order(:version) }
 
   has_many :way_nodes, -> { order(:sequence_id) }
-  has_many :nodes, -> { order("sequence_id") }, :through => :way_nodes
+  has_many :nodes, :through => :way_nodes
 
   has_many :way_tags
 
   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
+  has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation
 
   validates_presence_of :id, :on => :update
   validates_presence_of :changeset_id,:version,  :timestamp
@@ -28,7 +28,7 @@ class Way < ActiveRecord::Base
   validates_associated :changeset
 
   scope :visible, -> { where(:visible => true) }
-    scope :invisible, -> { where(:visible => false) }
+  scope :invisible, -> { where(:visible => false) }
 
   # Read in xml as text and return it's Way object representation
   def self.from_xml(xml, create=false)
@@ -101,9 +101,10 @@ class Way < ActiveRecord::Base
   end
 
   def to_xml_node(visible_nodes = nil, changeset_cache = {}, user_display_name_cache = {})
-    el1 = XML::Node.new 'way'
-    el1['id'] = self.id.to_s
-    add_metadata_to_xml_node(el1, self, changeset_cache, user_display_name_cache)
+    el = XML::Node.new 'way'
+    el['id'] = self.id.to_s
+
+    add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
 
     # make sure nodes are output in sequence_id order
     ordered_nodes = []
@@ -123,39 +124,23 @@ class Way < ActiveRecord::Base
 
     ordered_nodes.each do |nd_id|
       if nd_id and nd_id != '0'
-        e = XML::Node.new 'nd'
-        e['ref'] = nd_id
-        el1 << e
+        node_el = XML::Node.new 'nd'
+        node_el['ref'] = nd_id
+        el << node_el
       end
     end
 
-    self.way_tags.each do |tag|
-      e = XML::Node.new 'tag'
-      e['k'] = tag.k
-      e['v'] = tag.v
-      el1 << e
-    end
-    return el1
+    add_tags_to_xml_node(el, self.way_tags)
+
+    return el
   end 
 
   def nds
-    unless @nds
-      @nds = Array.new
-      self.way_nodes.each do |nd|
-        @nds += [nd.node_id]
-      end
-    end
-    @nds
+    @nds ||= self.way_nodes.collect { |n| n.node_id }
   end
 
   def tags
-    unless @tags
-      @tags = {}
-      self.way_tags.each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags
+    @tags ||= Hash[self.way_tags.collect { |t| [t.k, t.v] }]
   end
 
   def nds=(s)