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

diff --git a/app/models/way.rb b/app/models/way.rb
index 64b11cf672aabebe946e5473a7da601a500d7201..958944200df628054c67c6c0eb8e60105d99bb38 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -235,17 +235,8 @@ class Way < ActiveRecord::Base
 
   # delete a way and it's nodes that aren't part of other ways, with history
   def delete_with_relations_and_nodes_and_history(user)
 
   # delete a way and it's nodes that aren't part of other ways, with history
   def delete_with_relations_and_nodes_and_history(user)

-    
-    node_ids = self.nodes.collect {|node| node.id }
-    node_ids_not_to_delete = []
-    way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
-    
-    node_ids_not_to_delete = way_nodes.collect {|way_node| way_node.node_id}
-
-    node_ids_to_delete = node_ids - node_ids_not_to_delete
-

     # delete the nodes not used by other ways
     # delete the nodes not used by other ways

-    node_ids_to_delete.each do |node_id|
+    self.unshared_node_ids.each do |node_id|

       n = Node.find(node_id)
       n.user_id = user.id
       n.visible = false
       n = Node.find(node_id)
       n.user_id = user.id
       n.visible = false


@@ -255,7 +246,18 @@ class Way < ActiveRecord::Base
     self.user_id = user.id
 
     self.delete_with_relations_and_history(user)
     self.user_id = user.id
 
     self.delete_with_relations_and_history(user)

+  end
+
+  # Find nodes that belong to this way only
+  def unshared_node_ids
+    node_ids = self.nodes.collect { |node| node.id }
+
+    unless node_ids.empty?
+      way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
+      node_ids = node_ids - way_nodes.collect { |way_node| way_node.node_id }
+    end

 
 

+    return node_ids

   end
 
   # Temporary method to match interface to nodes
   end
 
   # Temporary method to match interface to nodes