diff options
Diffstat (limited to 'spec/arel/integration/joins/with_aggregations_spec.rb')
| -rw-r--r-- | spec/arel/integration/joins/with_aggregations_spec.rb | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/spec/arel/integration/joins/with_aggregations_spec.rb b/spec/arel/integration/joins/with_aggregations_spec.rb index 9e28237c3c..d429806094 100644 --- a/spec/arel/integration/joins/with_aggregations_spec.rb +++ b/spec/arel/integration/joins/with_aggregations_spec.rb @@ -16,13 +16,22 @@ module Arel end describe '#to_sql' do + it '' do + @relation1.join(@relation2.take(3)).on(@predicate).to_sql.should be_like(" + SELECT `users`.`id`, `users`.`name`, `photos_external`.`id`, `photos_external`.`user_id`, `photos_external`.`camera_id` + FROM `users` + INNER JOIN (SELECT `photos`.`id`, `photos`.`user_id`, `photos`.`camera_id` FROM `photos` LIMIT 3) AS `photos_external` + ON `users`.`id` = `photos_external`.`user_id` + ") + end + describe 'with the aggregation on the right' do it 'manufactures sql joining the left table to a derived table' do @relation1.join(@aggregation).on(@predicate).to_sql.should be_like(" - SELECT `users`.`id`, `users`.`name`, `photos_aggregation`.`user_id`, `photos_aggregation`.`cnt` + SELECT `users`.`id`, `users`.`name`, `photos_external`.`user_id`, `photos_external`.`cnt` FROM `users` - INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_aggregation` - ON `users`.`id` = `photos_aggregation`.`user_id` + INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_external` + ON `users`.`id` = `photos_external`.`user_id` ") end end @@ -30,10 +39,10 @@ module Arel describe 'with the aggregation on the left' do it 'manufactures sql joining the right table to a derived table' do @aggregation.join(@relation1).on(@predicate).to_sql.should be_like(" - SELECT `photos_aggregation`.`user_id`, `photos_aggregation`.`cnt`, `users`.`id`, `users`.`name` - FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_aggregation` + SELECT `photos_external`.`user_id`, `photos_external`.`cnt`, `users`.`id`, `users`.`name` + FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_external` INNER JOIN `users` - ON `users`.`id` = `photos_aggregation`.`user_id` + ON `users`.`id` = `photos_external`.`user_id` ") end end @@ -42,10 +51,10 @@ module Arel it 'it properly aliases the aggregations' do aggregation2 = @aggregation.alias @aggregation.join(aggregation2).on(aggregation2[:user_id].eq(@aggregation[:user_id])).to_sql.should be_like(" - SELECT `photos_aggregation`.`user_id`, `photos_aggregation`.`cnt`, `photos_aggregation_2`.`user_id`, `photos_aggregation_2`.`cnt` - FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_aggregation` - INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_aggregation_2` - ON `photos_aggregation_2`.`user_id` = `photos_aggregation`.`user_id` + SELECT `photos_external`.`user_id`, `photos_external`.`cnt`, `photos_external_2`.`user_id`, `photos_external_2`.`cnt` + FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_external` + INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` GROUP BY `photos`.`user_id`) AS `photos_external_2` + ON `photos_external_2`.`user_id` = `photos_external`.`user_id` ") end end @@ -54,10 +63,10 @@ module Arel describe 'with the aggregation on the left' do it "manufactures sql keeping wheres on the aggregation within the derived table" do @relation1.join(@aggregation.where(@aggregation[:user_id].eq(1))).on(@predicate).to_sql.should be_like(" - SELECT `users`.`id`, `users`.`name`, `photos_aggregation`.`user_id`, `photos_aggregation`.`cnt` + SELECT `users`.`id`, `users`.`name`, `photos_external`.`user_id`, `photos_external`.`cnt` FROM `users` - INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` WHERE `photos`.`user_id` = 1 GROUP BY `photos`.`user_id`) AS `photos_aggregation` - ON `users`.`id` = `photos_aggregation`.`user_id` + INNER JOIN (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` WHERE `photos`.`user_id` = 1 GROUP BY `photos`.`user_id`) AS `photos_external` + ON `users`.`id` = `photos_external`.`user_id` ") end end @@ -65,10 +74,10 @@ module Arel describe 'with the aggregation on the right' do it "manufactures sql keeping wheres on the aggregation within the derived table" do @aggregation.where(@aggregation[:user_id].eq(1)).join(@relation1).on(@predicate).to_sql.should be_like(" - SELECT `photos_aggregation`.`user_id`, `photos_aggregation`.`cnt`, `users`.`id`, `users`.`name` - FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` WHERE `photos`.`user_id` = 1 GROUP BY `photos`.`user_id`) AS `photos_aggregation` + SELECT `photos_external`.`user_id`, `photos_external`.`cnt`, `users`.`id`, `users`.`name` + FROM (SELECT `photos`.`user_id`, COUNT(`photos`.`id`) AS `cnt` FROM `photos` WHERE `photos`.`user_id` = 1 GROUP BY `photos`.`user_id`) AS `photos_external` INNER JOIN `users` - ON `users`.`id` = `photos_aggregation`.`user_id` + ON `users`.`id` = `photos_external`.`user_id` ") end end |