X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/4235bdf1621b106328c574ade941810c16ca55ab..64ecd02f0b74d2251e30fc1c97fdf1aa60f53e90:/app/models/old_way.rb

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index e4df25816..63265d6bf 100644
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -9,7 +9,7 @@ class OldWay < ActiveRecord::Base
     old_way.user_id = way.user_id
     old_way.timestamp = way.timestamp
     old_way.id = way.id
-    old_way.segs = way.segs
+    old_way.nds = way.nds
     old_way.tags = way.tags
     return old_way
   end
@@ -38,24 +38,24 @@ class OldWay < ActiveRecord::Base
       tag.save!
     end
 
-    i = 1
-    self.segs.each do |n|
-      seg = OldWaySegment.new
-      seg.id = self.id
-      seg.segment_id = n
-      seg.version = self.version
-      seg.save!
+    sequence = 1
+    self.nds.each do |n|
+      nd = OldWayNode.new
+      nd.id = [self.id, self.version, sequence]
+      nd.node_id = n
+      nd.save!
+      sequence += 1
     end
   end
 
-  def segs
-    unless @segs
-        @segs = Array.new
-        OldWaySegment.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version], :order => "sequence_id").each do |seg|
-            @segs += [seg.segment_id]
+  def nds
+    unless @nds
+        @nds = Array.new
+        OldWayNode.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version], :order => "sequence_id").each do |nd|
+            @nds += [nd.node_id]
         end
     end
-    @segs
+    @nds
   end
 
   def tags
@@ -69,19 +69,19 @@ class OldWay < ActiveRecord::Base
     @tags
   end
 
-  def segs=(s)
-    @segs = s
+  def nds=(s)
+    @nds = s
   end
 
   def tags=(t)
     @tags = t
   end
 
-#  has_many :way_segments, :class_name => 'OldWaySegment', :foreign_key => 'id'
+#  has_many :way_nodes, :class_name => 'OldWayNode', :foreign_key => 'id'
 #  has_many :way_tags, :class_name => 'OldWayTag', :foreign_key => 'id'
 
-  def old_segments
-    OldWaySegment.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])    
+  def old_nodes
+    OldWayNode.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])    
   end
 
   def old_tags
@@ -95,9 +95,9 @@ class OldWay < ActiveRecord::Base
     el1['timestamp'] = self.timestamp.xmlschema
     el1['user'] = self.user.display_name if self.user.data_public?
     
-    self.old_segments.each do |seg| # FIXME need to make sure they come back in the right order
-      e = XML::Node.new 'seg'
-      e['id'] = seg.segment_id.to_s
+    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
  
@@ -108,5 +108,49 @@ class OldWay < ActiveRecord::Base
       el1 << e
     end
     return el1
-  end 
+  end
+
+  # Read full version of old way
+  # For get_nodes_undelete, uses same nodes, even if they've moved since
+  # For get_nodes_revert,   allocates new ids 
+  # Currently returns Potlatch-style array
+  
+  def get_nodes_undelete
+	points = []
+	self.nds.each do |n|
+	  node=Node.find(n)
+	  points << [node.lon, node.lat, n, node.visible ? 1 : 0, node.tags_as_hash]
+    end
+	points
+  end
+  
+  def get_nodes_revert
+    points=[]
+    self.nds.each do |n|
+      oldnode=OldNode.find(:first, :conditions=>['id=? AND timestamp<=?',n,self.timestamp], :order=>"timestamp DESC")
+      curnode=Node.find(n)
+      id=n; v=curnode.visible ? 1 : 0
+      if oldnode.lat!=curnode.lat or oldnode.lon!=curnode.lon or oldnode.tags!=curnode.tags then
+        # node has changed: if it's in other ways, give it a new id
+        if curnode.ways-[self.id] then id=-1; v=nil end
+      end
+      points << [oldnode.lon, oldnode.lat, id, v, oldnode.tags_as_hash]
+    end
+    points
+  end
+
+  # Temporary method to match interface to nodes
+  def tags_as_hash
+    return self.tags
+  end
+
+  # Temporary method to match interface to ways
+  def way_nodes
+    return self.old_nodes
+  end
+
+  # Pretend we're not in any relations
+  def containing_relation_members
+    return []
+  end
 end