Forum: Ruby on Rails default value in text field

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ss (Guest)
on 2006-05-12 17:10

This should be really simple, but i cant seem to find the answer

In my _form.rhtml I have the following text field, how can I define a
default value?
<%= text_field 'purchaseorder', 'number'  %>
Bryan D. (Guest)
on 2006-05-12 17:24
Back in your controller action, do:

def new
@purchaseorder.number = "some number"
Mike G. (Guest)
on 2006-05-12 17:29
(Received via mailing list)
<%= text_field 'purchaseorder', 'number', :value => "some value" %>

but like Bryan said, if you have an instance variable named
purchaseorder, rails should automatically fill in the default value
with the attributes of this variable.

ss (Guest)
on 2006-05-12 17:33
Bryan D. wrote:
> Back in your controller action, do:
> def new
> @purchaseorder.number = "some number"
> end

thanks :)
Jonathan V. (Guest)
on 2006-05-13 07:05
(Received via mailing list)
Possibly a better way to accomplish this is to set a default on the
model object when it is instantiated:

class PurchaseOrder < ActiveRecord::Base
  def initialize(attributes = nil)
    self.number = 123 unless number?

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