Rails - May 2007 - validates_uniqueness_of (with :scope) doesn't seem to work?

I have a master record called ''project'' and a child record
called
''agycode''. Obviously, agycode has a project_id FK. I wish to
make the
"descr" field unique ONLY within the ''project_id''
''scope''. Here are the key
pieces of information
Agycode fields (id, project_id, descr)

Here''s the declaration in the Agycode.rb
validates_uniqueness_of *:descr*,
*:scope* => "project_id"

Here''s the test that SHOULDN''T pass but it does

*def* test_should_fail_duplicate_descr
record1 = *@project*.agycodes.*new*(*:descr* => "description")
record2 = record1
assert record1.save, "Save Record"
assert_valid(record1)
assert record2.save, "Save Record"
assert_valid(record2)
*end*

By the way, do you know how one would write the opposite of
"assert_valid"?
Thank you,
David

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You''re saving the same record twice.

The problem line: record2 = record1

This does *not* do a "deep copy" of record1''s attributes and
create a
new object.  Instead it just creates a new variable with a reference
to the same object that record1 references.

Try: record2 = record1.clone

Note that "clone" doesn''t copy associations.

On May 6, 10:11 pm, "David Kennedy"
<dauntlessda...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
>     I have a master record called ''project'' and a child
record called
> ''agycode''. Obviously, agycode has a project_id FK. I wish
to make the
> "descr" field unique ONLY within the
''project_id'' ''scope''. Here are the key
> pieces of information
> Agycode fields (id, project_id, descr)
>
> Here''s the declaration in the Agycode.rb
> validates_uniqueness_of *:descr*,
> *:scope* => "project_id"
>
> Here''s the test that SHOULDN''T pass but it does
>
> *def* test_should_fail_duplicate_descr
> record1 = *@project*.agycodes.*new*(*:descr* => "description")
> record2 = record1
> assert record1.save, "Save Record"
> assert_valid(record1)
> assert record2.save, "Save Record"
> assert_valid(record2)
> *end*
>
> By the way, do you know how one would write the opposite of
"assert_valid"?
> Thank you,
> David

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