[Seaside] asSet asOrderedCollection
Esteban A. Maringolo
emaringolo at gmail.com
Thu May 18 15:31:18 UTC 2006
On 5/18/06, mbreitha <max at bouh.org> wrote:
> Hello,
> I would like to know if is possible to delete doubledbloom in an
> orederedCollection when it's composed by Objects. I've tried with asSet
> but it doesn't work with Objects.
> thanks for your answer
What kind of objects are you trying to condense in a Set?
If they are your domain objects, check the implementation of #= and
#hash. (Look for other implementator to understand its behavior).
As a rule of thumb I recommend you that each time you implement #= in
your object also implement #hash using the same criteria.
Perhaps your problem is that your objects doesn't implement the method
with selector #= (nor #hash).
To play with, instance two of your objects and compare them using:
objectA = objectB
objectA hash = objectB hash
If both are equal, those evaluations must answer true.
Regards,
--
Esteban A. Maringolo
eMaringolo at gmail.com
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