Refactor generation of object metadata in API calls

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

diff --git a/app/models/old_node.rb b/app/models/old_node.rb
index 339db9d08c7412db160023ae283dd84f33b22b37..0d4fd144f8168bdb6021cc681c31e51eede85519 100644 (file)
--- a/app/models/old_node.rb
+++ b/app/models/old_node.rb
@@ -1,20 +1,118 @@
 class OldNode < ActiveRecord::Base
-  set_table_name 'nodes'
+  include GeoRecord
+  include ConsistencyValidations
+  include ObjectMetadata
 
-  belongs_to :user
+  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 ]
+  validates_numericality_of :latitude, :longitude
+  validate :validate_position
+  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
 
   def self.from_node(node)
     old_node = OldNode.new
     old_node.latitude = node.latitude
     old_node.longitude = node.longitude
-    old_node.visible = 1
+    old_node.visible = node.visible
     old_node.tags = node.tags
     old_node.timestamp = node.timestamp
-    old_node.user_id = node.user_id
-    old_node.id = node.id
+    old_node.changeset_id = node.changeset_id
+    old_node.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(changeset_cache = {}, user_display_name_cache = {})
+    el1 = XML::Node.new 'node'
+    el1['id'] = self.node_id.to_s
+    add_metadata_to_xml_node(el1, self, changeset_cache, user_display_name_cache)
 
+    if self.visible?
+      el1['lat'] = self.lat.to_s
+      el1['lon'] = self.lon.to_s
+    end
 
+    self.tags.each do |k,v|
+      el2 = XML::Node.new('tag')
+      el2['k'] = k.to_s
+      el2['v'] = v.to_s
+      el1 << el2
+    end
+
+    return el1
+  end
 
+  def save_with_dependencies!
+    save!
+    #not sure whats going on here
+    clear_aggregation_cache
+    clear_association_cache
+    #ok from here
+    @attributes.update(OldNode.where(:node_id => self.node_id, :timestamp => self.timestamp, :version => self.version).first.instance_variable_get('@attributes'))
+   
+    self.tags.each do |k,v|
+      tag = OldNodeTag.new
+      tag.k = k
+      tag.v = v
+      tag.node_id = self.node_id
+      tag.version = self.version
+      tag.save!
+    end
+  end
+
+  def tags
+    unless @tags
+      @tags = Hash.new
+      OldNodeTag.where(:node_id => self.node_id, :version => self.version).each do |tag|
+        @tags[tag.k] = tag.v
+      end
+    end
+    @tags = Hash.new unless @tags
+    @tags
+  end
+
+  def tags=(t)
+    @tags = t 
+  end
+
+  def tags_as_hash 
+    return self.tags
+  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 
+
+  # 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