X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/e660e609661edadc1ed5ad49d6e83e936b2f91cd..8c029f8d79d07384cffafb82d4b5979181bda8ad:/app/models/old_way.rb

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index db8a6df40..e5ba53852 100644
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -1,10 +1,17 @@
 class OldWay < ActiveRecord::Base
   include ConsistencyValidations
-  
+  include ObjectMetadata
+
   self.table_name = "ways"
   self.primary_keys = "way_id", "version"
 
+  # note this needs to be included after the table name changes, or
+  # the queries generated by Redactable will use the wrong table name.
+  include Redactable
+
   belongs_to :changeset
+  belongs_to :redaction
+  belongs_to :current_way, :class_name => "Way", :foreign_key => "way_id"
 
   has_many :old_nodes, :class_name => 'OldWayNode', :foreign_key => [:way_id, :version]
   has_many :old_tags, :class_name => 'OldWayTag', :foreign_key => [:way_id, :version]
@@ -58,24 +65,11 @@ class OldWay < ActiveRecord::Base
   end
 
   def nds
-    unless @nds
-      @nds = Array.new
-      OldWayNode.where(:way_id => self.way_id, :version => self.version).order(:sequence_id).each do |nd|
-        @nds += [nd.node_id]
-      end
-    end
-    @nds
+    @nds ||= self.old_nodes.order(:sequence_id).collect { |n| n.node_id }
   end
 
   def tags
-    unless @tags
-      @tags = Hash.new
-      OldWayTag.where(:way_id => self.way_id, :version => self.version).each do |tag|
-        @tags[tag.k] = tag.v
-      end
-    end
-    @tags = Hash.new unless @tags
-    @tags
+    @tags ||= Hash[self.old_tags.collect { |t| [t.k, t.v] }]
   end
 
   def nds=(s)
@@ -86,31 +80,21 @@ class OldWay < ActiveRecord::Base
     @tags = t
   end
 
-  def to_xml_node
-    el1 = XML::Node.new 'way'
-    el1['id'] = self.way_id.to_s
-    el1['visible'] = self.visible.to_s
-    el1['timestamp'] = self.timestamp.xmlschema
-    if self.changeset.user.data_public?
-      el1['user'] = self.changeset.user.display_name
-      el1['uid'] = self.changeset.user.id.to_s
-    end
-    el1['version'] = self.version.to_s
-    el1['changeset'] = self.changeset.id.to_s
-    
+  def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
+    el = XML::Node.new 'way'
+    el['id'] = self.way_id.to_s
+
+    add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
+
     self.old_nodes.each do |nd| # FIXME need to make sure they come back in the right order
-      e = XML::Node.new 'nd'
-      e['ref'] = nd.node_id.to_s
-      el1 << e
-    end
- 
-    self.old_tags.each do |tag|
-      e = XML::Node.new 'tag'
-      e['k'] = tag.k
-      e['v'] = tag.v
-      el1 << e
+      node_el = XML::Node.new 'nd'
+      node_el['ref'] = nd.node_id.to_s
+      el << node_el
     end
-    return el1
+      
+    add_tags_to_xml_node(el, self.old_tags)
+
+    return el
   end
 
   # Read full version of old way
@@ -132,7 +116,7 @@ class OldWay < ActiveRecord::Base
   def get_nodes_revert(timestamp)
     points=[]
     self.nds.each do |n|
-      oldnode = OldNode.where('node_id = ? AND timestamp <= ?', n, timestamp).order("timestamp DESC").first
+      oldnode = OldNode.where('node_id = ? AND timestamp <= ?', n, timestamp).unredacted.order("timestamp DESC").first
       curnode = Node.find(n)
       id = n; reuse = curnode.visible
       if oldnode.lat != curnode.lat or oldnode.lon != curnode.lon or oldnode.tags != curnode.tags then
@@ -158,4 +142,10 @@ class OldWay < ActiveRecord::Base
   def containing_relation_members
     return []
   end
+
+  # check whether this element is the latest version - that is,
+  # has the same version as its "current" counterpart.
+  def is_latest_version?
+    current_way.version == self.version
+  end
 end