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Added a second parameter to the build and create method for has_one that controls whether the existing association should be replaced (which means nullifying its foreign key as well). By default this is true, but false can be passed to prevent it.

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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1392 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
This commit is contained in:
David Heinemeier Hansson
2005-06-06 21:10:59 +00:00
parent 5c2e0fe649
commit 2bdaff4a4e
4 changed files with 53 additions and 3 deletions
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29
activerecord/test/associations_test.rb
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@@ -97,6 +97,35 @@ class HasOneAssociationsTest < Test::Unit::TestCase
# account is dependent, therefore is destroyed when reference to owner is lost
assert_raises(ActiveRecord::RecordNotFound) { Account.find(old_account_id) }
end
def test_assignment_without_replacement
apple = Firm.create("name" => "Apple")
citibank = Account.create("credit_limit" => 10)
apple.account = citibank
assert_equal apple.id, citibank.firm_id
hsbc = apple.build_account({ :credit_limit => 20}, false)
assert_equal apple.id, hsbc.firm_id
hsbc.save
assert_equal apple.id, citibank.firm_id
nykredit = apple.create_account({ :credit_limit => 30}, false)
assert_equal apple.id, nykredit.firm_id
assert_equal apple.id, citibank.firm_id
assert_equal apple.id, hsbc.firm_id
end
def test_assignment_without_replacement_on_create
apple = Firm.create("name" => "Apple")
citibank = Account.create("credit_limit" => 10)
apple.account = citibank
assert_equal apple.id, citibank.firm_id
hsbc = apple.create_account({ :name => "HSBC", :credit_limit => 10}, false)
assert_equal apple.id, hsbc.firm_id
hsbc.save
assert_equal apple.id, citibank.firm_id
end
def test_dependence
firm = Firm.find(1)