X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/5b33f3f8e31c62bc3e5db1d5b120533c3afdde68..11cc4a5e601dd288d601e6e35a72d159062f18b5:/db/migrate/021_move_to_innodb.rb

diff --git a/db/migrate/021_move_to_innodb.rb b/db/migrate/021_move_to_innodb.rb
index 6ef3587d1..47ebecc83 100644
--- a/db/migrate/021_move_to_innodb.rb
+++ b/db/migrate/021_move_to_innodb.rb
@@ -1,6 +1,6 @@
 require "migrate"
 
-class MoveToInnodb < ActiveRecord::Migration
+class MoveToInnodb < ActiveRecord::Migration[4.2]
   @conv_tables = %w[nodes ways way_tags way_nodes current_way_tags relation_members relations relation_tags current_relation_tags]
 
   @ver_tbl = %w[nodes ways relations]
@@ -19,9 +19,7 @@ class MoveToInnodb < ActiveRecord::Migration
       # current version to something less so that we can update the version in
       # batches of 10000
       tbl.classify.constantize.update_all(:version => -1)
-      while tbl.classify.constantize.where(:version => -1).count > 0
-        tbl.classify.constantize.update_all("version=(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)", { :version => -1 }, { :limit => 10000 })
-      end
+      tbl.classify.constantize.update_all("version=(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)", { :version => -1 }, { :limit => 10000 }) while tbl.classify.constantize.where(:version => -1).count.positive?
       # execute "UPDATE current_#{tbl} SET version = " +
       #  "(SELECT max(version) FROM #{tbl} WHERE #{tbl}.id = current_#{tbl}.id)"
       # The above update causes a MySQL error: