Ruby on Rails

On 2 January 2011 14:34, Michal Burak <lists@ruby-forum.com> wrote:
> Colin Law wrote in post #971847:
>> On 2 January 2011 14:11, Michal Burak <lists@ruby-forum.com> wrote:
>>>>>
>>>  link1.save!
>>>
>>>  foo2 = create_foo.save!
>>>  link2 = foo2.www_links.create(:href => 'wp.pl')
>>>
>>>  # when
>>>  link2.save!
>>>
>>>  # then
>>>  errors occured !
>>> end
>>
>> So you are just wanting uniqueness of www_link.href?  Will not
>> validates_uniqueness_of in WwwLink class (backed up by a unique
>> constraint in the database of course) do the job?  I think in this
>> case it will be the foo2.www_links.create that will fail.
>>
>> Colin
>
>
> The constraint is on "owner" and "href", not "href" itself.
> I can have multiple links with the same href. But those cannot be with
> the same owner_id.

That is not what your test says, you have too Foo objects, foo1 and
foo2 and are asking it to fail when you add the link to the second
one.

Colin

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