Add an extra null pointer check that can trigger in tests

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

diff --git a/app/models/node.rb b/app/models/node.rb
index 6ef1b9e6f8efa35e268dbbfb4bd6dcdd967d288c..df6442b833405140075cb43b2f65b557551c5b80 100644 (file)
--- a/app/models/node.rb
+++ b/app/models/node.rb
@@ -70,6 +70,7 @@ class Node < ActiveRecord::Base
       doc.find('//osm/node').each do |pt|
         return Node.from_xml_node(pt, create)
       end
+      raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/node element.")
     rescue LibXML::XML::Error, ArgumentError => ex
       raise OSM::APIBadXMLError.new("node", xml, ex.message)
     end
@@ -82,7 +83,7 @@ class Node < ActiveRecord::Base
     raise OSM::APIBadXMLError.new("node", pt, "lon missing") if pt['lon'].nil?
     node.lat = pt['lat'].to_f
     node.lon = pt['lon'].to_f
-    raise OSM::APIBadXMLError.new("node", pt, "changeset id missing") if pt['changeset'].nil?
+    raise OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt['changeset'].nil?
     node.changeset_id = pt['changeset'].to_i
 
     raise OSM::APIBadUserInput.new("The node is outside this world") unless node.in_world?
@@ -93,17 +94,20 @@ class Node < ActiveRecord::Base
 
     unless create
       raise OSM::APIBadXMLError.new("node", pt, "ID is required when updating.") if pt['id'].nil?
-      if pt['id'] != '0'
-        node.id = pt['id'].to_i
-      end
+      node.id = pt['id'].to_i
+      # .to_i will return 0 if there is no number that can be parsed. 
+      # We want to make sure that there is no id with zero anyway
+      raise OSM::APIBadUserInput.new("ID of node cannot be zero when updating.") if node.id == 0
     end
 
     # We don't care about the time, as it is explicitly set on create/update/delete
     # We don't care about the visibility as it is implicit based on the action
-
-    tags = []
+    # and set manually before the actual delete
+    node.visible = true
 
     pt.find('tag').each do |tag|
+      raise OSM::APIBadXMLError.new("node", pt, "tag is missing key") if tag['k'].nil?
+      raise OSM::APIBadXMLError.new("node", pt, "tag is missing value") if tag['v'].nil?
       node.add_tag_key_val(tag['k'],tag['v'])
     end