On 5/25/07, Nik Wakelin <[EMAIL PROTECTED]> wrote:
> The real problem seems to be that people want to format attributes
> before they display them (credit card, phone number). So, how about we
> allow that. Could be as simple as:
Sometimes (or perhaps generally) form builders and objects are too
closely tied -- surely you do not want to pollute your model with a
lot of user interface stuff. Instead, a level of indirection is
useful, such as a form model:
class ProductForm
def initialize(object)
@object = object
end
def dutch_price
('%.2f' % @object.price).gsub('.', ',')
end
def dutch_price=(price)
@object.price = price.to_s.gsub(',', '.')
end
def method_missing(name, *args, &block)
@object.send(name, *args, &block)
end
end
Now you can do:
<% form_for :product, @product do |form| %>
<%= form.text_field :title %>
<%= form.text_field :dutch_price %>
<% end %>
where @product could be initialized thus:
@product = ProductForm.new(Product.find(params[:id]))
Alexander.
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