- fixed map api call in version 0.4.

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

diff --git a/app/models/way.rb b/app/models/way.rb
index 85b52aa88e6e8b4c8329536e4a1a3144eaec0d58..55a578acdbbd5d42a32476618b76bbd453039b33 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -6,6 +6,8 @@ class Way < ActiveRecord::Base
   has_many :way_segments, :foreign_key => 'id'
   has_many :way_tags, :foreign_key => 'id'
 
+  has_many :old_ways, :foreign_key => :id
+
   set_table_name 'current_ways'
 
   def self.from_xml(xml, create=false)
@@ -16,7 +18,7 @@ class Way < ActiveRecord::Base
     way = Way.new
 
     doc.find('//osm/way').each do |pt|
-      unless create and pt['id'] == '0'
+      if !create and pt['id'] != '0'
         way.id = pt['id'].to_i
       end
 
@@ -50,7 +52,12 @@ class Way < ActiveRecord::Base
     root['generator'] = 'OpenStreetMap server'
 
     doc.root = root
-    
+
+    root << to_xml_node()
+    return doc
+  end
+
+  def to_xml_node
     el1 = XML::Node.new 'way'
     el1['id'] = self.id.to_s
     el1['visible'] = self.visible.to_s
@@ -68,10 +75,9 @@ class Way < ActiveRecord::Base
       e['v'] = tag.v
       el1 << e
     end
-  
-    root << el1
-    return doc
-  end
+    return el1
+  end 
+
 
   def segs
     @segs = Array.new unless @segs
@@ -133,4 +139,14 @@ class Way < ActiveRecord::Base
     old_way.save_with_dependencies
   end
 
+  def preconditions_ok?
+    self.segs.each do |n|
+      segment = Segment.find(n)
+      unless segment and segment.visible and segment.preconditions_ok?
+        return false
+      end
+    end
+    return true
+  end
+
 end