Moved a bunch of time functions into UTC. Fixes bugs which we only see for 4 hours a year.

app/models/changeset.rb

@@ -42,12 +42,12 @@ class Changeset < ActiveRecord::Base
     # note that this may not be a hard limit - due to timing changes and
     # concurrency it is possible that some changesets may be slightly 
     # longer than strictly allowed or have slightly more changes in them.
-    return ((closed_at > Time.now) and (num_changes <= MAX_ELEMENTS))
+    return ((closed_at > Time.now.getutc) and (num_changes <= MAX_ELEMENTS))
   end
 
   def set_closed_time_now
     if is_open?
-      self.closed_at = Time.now
+      self.closed_at = Time.now.getutc
     end
   end
   
@@ -60,10 +60,10 @@ class Changeset < ActiveRecord::Base
 
       doc.find('//osm/changeset').each do |pt|
         if create
-          cs.created_at = Time.now
+          cs.created_at = Time.now.getutc
           # initial close time is 1h ahead, but will be increased on each
           # modification.
-          cs.closed_at = Time.now + IDLE_TIMEOUT
+          cs.closed_at = cs.created_at + IDLE_TIMEOUT
           # initially we have no changes in a changeset
           cs.num_changes = 0
         end
@@ -140,7 +140,7 @@ class Changeset < ActiveRecord::Base
   end
 
   def save_with_tags!
-    t = Time.now
+    t = Time.now.getutc
 
     # do the changeset update and the changeset tags update in the
     # same transaction to ensure consistency.
@@ -151,7 +151,7 @@ class Changeset < ActiveRecord::Base
       if (closed_at - created_at) > (MAX_TIME_OPEN - IDLE_TIMEOUT)
         self.closed_at = created_at + MAX_TIME_OPEN
       else
-        self.closed_at = Time.now + IDLE_TIMEOUT
+        self.closed_at = Time.now.getutc + IDLE_TIMEOUT
       end
       self.save!
 

app/models/node.rb

@@ -267,7 +267,7 @@ class Node < ActiveRecord::Base
   private
 
   def save_with_history!
-    t = Time.now
+    t = Time.now.getutc
     Node.transaction do
       self.version += 1
       self.timestamp = t

app/models/relation.rb

@@ -51,7 +51,7 @@ class Relation < ActiveRecord::Base
     # The follow block does not need to be executed because they are dealt with 
     # in create_with_history, update_from and delete_with_history
     if create
-      relation.timestamp = Time.now
+      relation.timestamp = Time.now.getutc
       relation.visible = true
       relation.version = 0
     else
@@ -334,7 +334,7 @@ class Relation < ActiveRecord::Base
       # changed then we have to monitor their before and after state.
       tags_changed = false
 
-      t = Time.now
+      t = Time.now.getutc
       self.version += 1
       self.timestamp = t
       self.save!

app/models/user.rb

@@ -30,7 +30,7 @@ class User < ActiveRecord::Base
   file_column :image, :magick => { :geometry => "100x100>" }
 
   def after_initialize
-    self.creation_time = Time.now if self.creation_time.nil?
+    self.creation_time = Time.now.getutc if self.creation_time.nil?
   end
 
   def encrypt_password

app/models/way.rb

@@ -51,7 +51,7 @@ class Way < ActiveRecord::Base
 
     # 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']
@@ -296,7 +296,7 @@ class Way < ActiveRecord::Base
   private
   
   def save_with_history!
-    t = Time.now
+    t = Time.now.getutc
 
     # 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