diff options
Diffstat (limited to 'lib/arel/table.rb')
-rw-r--r-- | lib/arel/table.rb | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/arel/table.rb b/lib/arel/table.rb index ba31e3183b..3285037154 100644 --- a/lib/arel/table.rb +++ b/lib/arel/table.rb @@ -27,7 +27,11 @@ module Arel end def primary_key - @primary_key ||= self[@engine.connection.primary_key(name)] + @primary_key ||= begin + primary_key_name = @engine.connection.primary_key(name) + # some tables might be without primary key + primary_key_name && self[primary_key_name] + end end def alias |