diff options
Diffstat (limited to 'spec')
| -rw-r--r-- | spec/arel/unit/relations/join_spec.rb | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/spec/arel/unit/relations/join_spec.rb b/spec/arel/unit/relations/join_spec.rb index d517da8c1f..b5c5dc8e33 100644 --- a/spec/arel/unit/relations/join_spec.rb +++ b/spec/arel/unit/relations/join_spec.rb @@ -56,14 +56,13 @@ module Arel ") end - it 'manufactures sql joining the two tables, merging any selects' do + it 'manufactures sql joining the two tables, with selects from the right table in the ON clause' do Join.new("INNER JOIN", @relation1.select(@relation1[:id].eq(1)), @relation2.select(@relation2[:id].eq(2)), @predicate).to_sql.should be_like(" SELECT `users`.`id`, `users`.`name`, `photos`.`id`, `photos`.`user_id`, `photos`.`camera_id` FROM `users` - INNER JOIN `photos` ON `users`.`id` = `photos`.`user_id` + INNER JOIN `photos` ON `users`.`id` = `photos`.`user_id` AND `photos`.`id` = 2 WHERE `users`.`id` = 1 - AND `photos`.`id` = 2 ") end end @@ -158,10 +157,24 @@ module Arel SELECT `users`.`id`, `users`.`name`, `users_2`.`id`, `users_2`.`name` FROM `users` INNER JOIN `users` AS `users_2` - ON `users`.`id` = `users_2`.`id` - WHERE `users_2`.`id` = 1 + ON `users`.`id` = `users_2`.`id` AND `users_2`.`id` = 1 ") end + + describe 'when the selection occurs before the alias' do + it 'manufactures sql aliasing the predicates properly' do + aliased_relation = @relation1.select(@relation1[:id].eq(1)).alias + @relation1 \ + .join(aliased_relation) \ + .on(aliased_relation[:id].eq(@relation1[:id])) \ + .to_sql.should be_like(" + SELECT `users`.`id`, `users`.`name`, `users_2`.`id`, `users_2`.`name` + FROM `users` + INNER JOIN `users` AS `users_2` + ON `users_2`.`id` = `users`.`id` AND `users_2`.`id` = 1 + ") + end + end end describe 'when joining the relation to itself multiple times' do |