Merge remote-tracking branch 'upstream/pull/2950' into master

[rails.git] / lib / diff_reader.rb

diff --git a/lib/diff_reader.rb b/lib/diff_reader.rb
index cb553bfbcad71a095c0940f61b3fb5341d1d4712..5d98ef874406adc14e1cacc0b1ce584641c33e9b 100644 (file)
--- a/lib/diff_reader.rb
+++ b/lib/diff_reader.rb
@@ -8,8 +8,8 @@ class DiffReader
 
   # maps each element type to the model class which handles it
   MODELS = {
-    "node"     => Node,
-    "way"      => Way,
+    "node" => Node,
+    "way" => Way,
     "relation" => Relation
   }.freeze
 
@@ -33,8 +33,8 @@ class DiffReader
     # NOTE: XML::Reader#read returns false for EOF and raises an
     # exception if an error occurs.
     @reader.read
-  rescue LibXML::XML::Error => ex
-    raise OSM::APIBadXMLError.new("changeset", xml, ex.message)
+  rescue LibXML::XML::Error => e
+    raise OSM::APIBadXMLError.new("changeset", xml, e.message)
   end
 
   ##
@@ -133,7 +133,8 @@ class DiffReader
 
     # loop at the top level, within the <osmChange> element
     with_element do |action_name, action_attributes|
-      if action_name == "create"
+      case action_name
+      when "create"
         # create a new element. this code is agnostic of the element type
         # because all the elements support the methods that we're using.
         with_model do |model, xml|
@@ -168,7 +169,7 @@ class DiffReader
           result.root << xml_result
         end
 
-      elsif action_name == "modify"
+      when "modify"
         # modify an existing element. again, this code doesn't directly deal
         # with types, but uses duck typing to handle them transparently.
         with_model do |model, xml|
@@ -200,7 +201,7 @@ class DiffReader
           result.root << xml_result
         end
 
-      elsif action_name == "delete"
+      when "delete"
         # delete action. this takes a payload in API 0.6, so we need to do
         # most of the same checks that are done for the modify.
         with_model do |model, xml|