Arrays have a length method, not a count method.

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

diff --git a/app/models/way.rb b/app/models/way.rb
index ac4461f8e123efce46a265d193d99c8f91069a46..eb4bf48f428d84c981945447700ab38be15a6529 100644 (file)
--- a/app/models/way.rb
+++ b/app/models/way.rb
@@ -27,14 +27,13 @@ class Way < ActiveRecord::Base
 
   def self.from_xml(xml, create=false)
     begin
-      p = XML::Parser.new
-      p.string = xml
+      p = XML::Parser.string(xml)
       doc = p.parse
 
       doc.find('//osm/way').each do |pt|
         return Way.from_xml_node(pt, create)
       end
-    rescue LibXML::XML::Error => ex
+    rescue LibXML::XML::Error, ArgumentError => ex
       raise OSM::APIBadXMLError.new("way", xml, ex.message)
     end
   end
@@ -47,10 +46,12 @@ class Way < ActiveRecord::Base
     end
     
     way.version = pt['version']
+    raise OSM::APIBadXMLError.new("node", pt, "Changeset is required") if pt['changeset'].nil?
     way.changeset_id = pt['changeset']
 
+    # This next section isn't required for the create, update, or delete of ways
     if create
-      way.timestamp = Time.now
+      way.timestamp = Time.now.getutc
       way.visible = true
     else
       if pt['timestamp']
@@ -201,7 +202,9 @@ class Way < ActiveRecord::Base
     if !new_way.preconditions_ok?
       raise OSM::APIPreconditionFailedError.new
     end
+
     self.changeset_id = new_way.changeset_id
+    self.changeset = new_way.changeset
     self.tags = new_way.tags
     self.nds = new_way.nds
     self.visible = true
@@ -221,12 +224,12 @@ class Way < ActiveRecord::Base
   def preconditions_ok?
     return false if self.nds.empty?
     if self.nds.length > APP_CONFIG['max_number_of_way_nodes']
-      raise OSM::APITooManyWayNodesError.new(self.nds.count, APP_CONFIG['max_number_of_way_nodes'])
+      raise OSM::APITooManyWayNodesError.new(self.nds.length, APP_CONFIG['max_number_of_way_nodes'])
     end
     self.nds.each do |n|
       node = Node.find(:first, :conditions => ["id = ?", n])
       unless node and node.visible
-        return false
+        raise OSM::APIPreconditionFailedError.new("The node with id #{n} either does not exist, or is not visible")
       end
     end
     return true
@@ -243,10 +246,12 @@ class Way < ActiveRecord::Base
     Way.transaction do
       check_consistency(self, new_way, user)
       if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id",
-                             :conditions => [ "visible = ? AND member_type='way' and member_id=? ", true, self.id])
-        raise OSM::APIPreconditionFailedError
+                             :conditions => [ "visible = ? AND member_type='Way' and member_id=? ", true, self.id])
+        raise OSM::APIPreconditionFailedError.new("You need to make sure that this way is not a member of a relation.")
       else
         self.changeset_id = new_way.changeset_id
+        self.changeset = new_way.changeset
+
         self.tags = []
         self.nds = []
         self.visible = false
@@ -255,26 +260,6 @@ class Way < ActiveRecord::Base
     end
   end
 
-  # delete a way and its nodes that aren't part of other ways, with history
-
-  # FIXME: merge the potlatch code to delete the relations
-  #        and refactor to use delete_with_history!
-  def delete_with_relations_and_nodes_and_history(changeset_id)
-    # delete the nodes not used by other ways
-    self.unshared_node_ids.each do |node_id|
-      n = Node.find(node_id)
-      n.changeset_id = changeset_id
-      n.visible = false
-      n.save_with_history!
-    end
-    
-    self.changeset_id = changeset_id
-    self.tags = []
-    self.nds = []
-    self.visible = false
-    self.save_with_history!
-  end
-
   # Find nodes that belong to this way only
   def unshared_node_ids
     node_ids = self.nodes.collect { |node| node.id }
@@ -311,13 +296,14 @@ class Way < ActiveRecord::Base
   private
   
   def save_with_history!
-    t = Time.now
+    t = Time.now.getutc
 
-    # update the bounding box, but don't save it as the controller knows the 
-    # lifetime of the change better. note that this has to be done both before 
+    # update the bounding box, note that this has to be done both before 
     # and after the save, so that nodes from both versions are included in the 
-    # bbox.
-    changeset.update_bbox!(bbox) unless nodes.empty?
+    # bbox. we use a copy of the changeset so that it isn't reloaded
+    # later in the save.
+    cs = self.changeset
+    cs.update_bbox!(bbox) unless nodes.empty?
 
     Way.transaction do
       self.version += 1
@@ -349,14 +335,18 @@ class Way < ActiveRecord::Base
       old_way.timestamp = t
       old_way.save_with_dependencies!
 
+      # reload the way so that the nodes array points to the correct
+      # new set of nodes.
+      self.reload
+
       # update and commit the bounding box, now that way nodes 
       # have been updated and we're in a transaction.
-      changeset.update_bbox!(bbox) unless nodes.empty?
+      cs.update_bbox!(bbox) unless nodes.empty?
 
       # tell the changeset we updated one element only
-      changeset.add_changes! 1
+      cs.add_changes! 1
 
-      changeset.save!
+      cs.save!
     end
   end