Rails - Oct 2005 - Tips for noob's

Need to let a user enter a price and don''t want to impose silly rules
about what''s valid?  Here''s what I''ve figured out

In your _form.rhtml, replace the standard text_field with this type:

<%= text_field_tag ''listing[price]'',
number_to_delimiter(@listing.price)  %>

you could also use number_as_currency too if you wanted a dollar sign
in your field.

next, in your model, add override the default before validation method.

def before_validation
  if self.price != nil
   
self.price_before_type_cast.to_s.gsub!(/[^0-9\.\-]/,'''').to_i
  end
end

This will remove anything that isn''t a number, decimal point, or minus
sign.



--
Marlon

Sweet Marlon!  Thanks for the tip.

Duane Johnson
(canadaduane)

On Sep 30, 2005, at 9:11 PM, Marlon Moyer wrote:
> Need to let a user enter a price and don''t want to impose silly
rules
> about what''s valid?  Here''s what I''ve figured
out
>
> In your _form.rhtml, replace the standard text_field with this type:
>
> <%= text_field_tag ''listing[price]'',
number_to_delimiter
> (@listing.price)  %>
>
> you could also use number_as_currency too if you wanted a dollar sign
> in your field.
>
> next, in your model, add override the default before validation  
> method.
>
> def before_validation
>   if self.price != nil
>    
self.price_before_type_cast.to_s.gsub!(/[^0-9\.\-]/,'''').to_i
>   end
> end
>
> This will remove anything that isn''t a number, decimal point, or  
> minus sign.
>
>
>
> --
> Marlon
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