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

diff --git a/app/models/old_node.rb b/app/models/old_node.rb
index f8af91abb3be2c3c4f6a17a161e41eda5ba831c1..ab25d4dbc588d48f5faa38f7553744add56c927c 100644 (file)
--- a/app/models/old_node.rb
+++ b/app/models/old_node.rb
@@ -2,8 +2,12 @@ class OldNode < ActiveRecord::Base
   include GeoRecord
   include ConsistencyValidations
 
-  set_table_name 'nodes'
-  set_primary_keys :node_id, :version
+  self.table_name = "nodes"
+  self.primary_keys = "node_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
 
   validates_presence_of :changeset_id, :timestamp
   validates_inclusion_of :visible, :in => [ true, false ]
@@ -12,7 +16,9 @@ class OldNode < ActiveRecord::Base
   validates_associated :changeset
 
   belongs_to :changeset
- 
+  belongs_to :redaction
+  belongs_to :current_node, :class_name => "Node", :foreign_key => "node_id"
+
   def validate_position
     errors.add(:base, "Node is not in the world") unless in_world?
   end
@@ -36,15 +42,36 @@ class OldNode < ActiveRecord::Base
     return doc
   end
 
-  def to_xml_node
+  def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
     el1 = XML::Node.new 'node'
     el1['id'] = self.node_id.to_s
-    el1['lat'] = self.lat.to_s
-    el1['lon'] = self.lon.to_s
-    el1['changeset'] = self.changeset.id.to_s
-    if self.changeset.user.data_public?
-      el1['user'] = self.changeset.user.display_name
-      el1['uid'] = self.changeset.user.id.to_s
+    el1['version'] = self.version.to_s
+    el1['changeset'] = self.changeset_id.to_s
+
+    if self.visible?
+      el1['lat'] = self.lat.to_s
+      el1['lon'] = self.lon.to_s
+    end
+
+    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|
@@ -56,7 +83,9 @@ class OldNode < ActiveRecord::Base
 
     el1['visible'] = self.visible.to_s
     el1['timestamp'] = self.timestamp.xmlschema
-    el1['version'] = self.version.to_s
+    
+    el1['redacted'] = self.redaction.id.to_s if self.redacted?
+
     return el1
   end
 
@@ -106,4 +135,10 @@ class OldNode < 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_node.version == self.version
+  end
 end