diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/locking.rb | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/locking.rb b/activerecord/lib/active_record/locking.rb index 90aba3913c..c8868bed3c 100644 --- a/activerecord/lib/active_record/locking.rb +++ b/activerecord/lib/active_record/locking.rb @@ -32,14 +32,15 @@ module ActiveRecord previous_value = self.lock_version self.lock_version = previous_value + 1 - affected_rows = connection.update( - "UPDATE #{self.class.table_name} "+ - "SET #{quoted_comma_pair_list(connection, attributes_with_quotes(false))} " + - "WHERE #{self.class.primary_key} = #{quote(id)} AND lock_version = #{quote(previous_value)}", - "#{self.class.name} Update with optimistic locking" - ) - - raise(ActiveRecord::StaleObjectError, "Attempted to update a stale object") unless affected_rows == 1 + affected_rows = connection.update(<<-end_sql, "#{self.class.name} Update with optimistic locking") + UPDATE #{self.class.table_name} + SET #{quoted_comma_pair_list(attributes_with_quotes(false))} + WHERE #{self.class.primary_key} = #{quote(id)} AND lock_version = #{quote(previous_value)} + end_sql + + unless affected_rows == 1 + raise ActiveRecord::StaleObjectError, "Attempted to update a stale object" + end else update_without_lock end |