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require 'spec_helper'
module Arel
describe Join do
before do
@relation1 = Table(:users)
@relation2 = Table(:photos)
@predicate = @relation1[:id].eq(@relation2[:user_id])
end
describe '#to_sql' do
describe 'when the join contains a where' do
describe 'and the where is given a string' do
it 'does not escape the string' do
sql = @relation1 \
.join(@relation2.where("asdf")) \
.on(@predicate) \
.to_sql
adapter_is :mysql do
sql.should be_like(%Q{
SELECT `users`.`id`, `users`.`name`, `photos`.`id`, `photos`.`user_id`, `photos`.`camera_id`
FROM `users`
INNER JOIN `photos`
ON `users`.`id` = `photos`.`user_id` AND asdf
})
end
adapter_is_not :mysql do
sql.should be_like(%Q{
SELECT "users"."id", "users"."name", "photos"."id", "photos"."user_id", "photos"."camera_id"
FROM "users"
INNER JOIN "photos"
ON "users"."id" = "photos"."user_id" AND asdf
})
end
end
end
end
describe 'when a compound contains a join' do
describe 'and the compound is a where' do
it 'manufactures sql disambiguating the tables' do
sql = @relation1 \
.where(@relation1[:id].eq(1)) \
.join(@relation2) \
.on(@predicate) \
.where(@relation1[:id].eq(1)) \
.to_sql
adapter_is :mysql do
sql.should be_like(%Q{
SELECT `users`.`id`, `users`.`name`, `photos`.`id`, `photos`.`user_id`, `photos`.`camera_id`
FROM `users`
INNER JOIN `photos`
ON `users`.`id` = `photos`.`user_id`
WHERE `users`.`id` = 1
AND `users`.`id` = 1
})
end
adapter_is_not :mysql do
sql.should be_like(%Q{
SELECT "users"."id", "users"."name", "photos"."id", "photos"."user_id", "photos"."camera_id"
FROM "users"
INNER JOIN "photos"
ON "users"."id" = "photos"."user_id"
WHERE "users"."id" = 1
AND "users"."id" = 1
})
end
end
end
describe 'and the compound is a group' do
it 'manufactures sql disambiguating the tables' do
sql = @relation1 \
.join(@relation2) \
.on(@predicate) \
.group(@relation1[:id]) \
.to_sql
adapter_is :mysql do
sql.should be_like(%Q{
SELECT `users`.`id`, `users`.`name`, `photos`.`id`, `photos`.`user_id`, `photos`.`camera_id`
FROM `users`
INNER JOIN `photos`
ON `users`.`id` = `photos`.`user_id`
GROUP BY `users`.`id`
})
end
adapter_is_not :mysql do
sql.should be_like(%Q{
SELECT "users"."id", "users"."name", "photos"."id", "photos"."user_id", "photos"."camera_id"
FROM "users"
INNER JOIN "photos"
ON "users"."id" = "photos"."user_id"
GROUP BY "users"."id"
})
end
end
end
end
end
end
end
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