Rails - Mar 2005 - UTF-8 and AR length validation

Shouldn''t the length validation of AR use String#jsize to be compatible
to UTF-8?

Andreas Schwarz wrote:
> Shouldn''t the length validation of AR use String#jsize to be
compatible
> to UTF-8?
I have set up a ticket for this:
http://dev.rubyonrails.org/ticket/824

On Sat, 12 Mar 2005 16:27:48 +0100, Andreas Schwarz
<usenet-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Andreas Schwarz wrote:
> > Shouldn''t the length validation of AR use String#jsize to be
compatible
> > to UTF-8?
> 
> I have set up a ticket for this:
> http://dev.rubyonrails.org/ticket/824
I deferred that ticket to milestone 1.x, though I guess a patch which
supports this transparently when the gem is installed wouldn''t be too
intrusive.

Most of the time I''m validating the length of something it''s
because:

1) It''s a password or something similar with a minimum length
restriction
2) To restrict the max length to that of a database field

With the first case the validations would still work,  but aren''t the
varchar(x) declarations in bytes not characters?  Would we need
something seperate to validate that?
 
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-- 
Cheers

Koz

Michael Koziarski wrote:
> On Sat, 12 Mar 2005 16:27:48 +0100, Andreas Schwarz
> <usenet-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
> 
>>Andreas Schwarz wrote:
>>
>>>Shouldn''t the length validation of AR use String#jsize to
be compatible
>>>to UTF-8?
>>
>>I have set up a ticket for this:
>>http://dev.rubyonrails.org/ticket/824
> 
> 
> I deferred that ticket to milestone 1.x, though I guess a patch which
> supports this transparently when the gem is installed wouldn''t be
too
> intrusive.
Which gem?
> Most of the time I''m validating the length of something
it''s because:
> 
> 1) It''s a password or something similar with a minimum length
restriction
> 2) To restrict the max length to that of a database field
> 
> With the first case the validations would still work,  but aren''t
the
> varchar(x) declarations in bytes not characters?  Would we need
> something seperate to validate that?
In MySQL varchar(x) means x characters, if the charset is UTF-8 this can 
be 30 bytes long.