Rails - Sep 2008 - Preventing users from using your app name in their name

Is there a Rails validation helper or an easy way of preventing
attributes from containing a certain word match, e.g. you have a User
model, the user has a name attribute, and you don''t want the @user.name
to == ''MyRailsApp'' or to have ''MyRailsApp''
somewhere in there?

I imagine it would look something like this (although I can''t get this
one to work - it always fails);

  validates_format_of :name, :with => /!MyRailsApp/i, :message =>
"You
can''t use our Website name."

Any ideas?
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On Sep 20, 8:18 pm, Neil Cauldwell
<rails-mailing-l...-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:
> Is there a Rails validation helper or an easy way of preventing
> attributes from containing a certain word match, e.g. you have a User
> model, the user has a name attribute, and you don''t want the
@user.name
> to == ''MyRailsApp'' or to have
''MyRailsApp'' somewhere in there?
>
> I imagine it would look something like this (although I can''t get
this
> one to work - it always fails);
>
>   validates_format_of :name, :with => /!MyRailsApp/i, :message =>
"You
> can''t use our Website name."
>
> Any ideas?
> --
> Posted viahttp://www.ruby-forum.com/.
Try this one:

validates_each :name do |record, attr, value|
  record.errors.add attr, "can''t use our Website name." if
value =~ /
MyRailsApp/i
end
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Neil Cauldwell wrote:
> 
> Any ideas?
Try validates_exclusion_of

http://www.railsbrain.com/api/rails-2.1.0/doc/index.html?a=M001745&name=validates_exclusion_of

Peace.
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Erol Fornoles wrote:
> On Sep 20, 8:18�pm, Neil Cauldwell <rails-mailing-l...@andreas-s.net>
> wrote:
>>
>> Any ideas?
>> --
>> Posted viahttp://www.ruby-forum.com/.
> 
> Try this one:
> 
> validates_each :name do |record, attr, value|
>   record.errors.add attr, "can''t use our Website name."
if value =~ /
> MyRailsApp/i
> end
That one works great, thanks.
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Phillip Koebbe wrote:
> Neil Cauldwell wrote:
>> 
>> Any ideas?
> 
> Try validates_exclusion_of
> 
>
http://www.railsbrain.com/api/rails-2.1.0/doc/index.html?a=M001745&name=validates_exclusion_of
> 
> Peace.
Thanks, Phillip. I found validates_exclusion_of soon after posting but, 
I couldn''t make it case sensitive.
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