Add a delete method for the user model.

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

diff --git a/app/models/old_way.rb b/app/models/old_way.rb
index aa9c81d0ab9b5864c9e6f809a24c29e08fdf11d3..63265d6bf5c77814e90205cc4c0c5138a65a04c3 100644 (file)
--- a/app/models/old_way.rb
+++ b/app/models/old_way.rb
@@ -38,15 +38,13 @@ class OldWay < ActiveRecord::Base
       tag.save!
     end
 
-    i = 1
+    sequence = 1
     self.nds.each do |n|
       nd = OldWayNode.new
-      nd.id = self.id
+      nd.id = [self.id, self.version, sequence]
       nd.node_id = n
-      nd.sequence_id = i
-      nd.version = self.version
       nd.save!
-      i += 1
+      sequence += 1
     end
   end
 
@@ -110,5 +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