Forum: Ruby on Rails Validations on non SQL field

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List R. (Guest)
on 2005-11-29 03:57
Any way to run validations on fields which aren't in the SQL?

I know there have been some posts about validations on non persistent
objects.  I'm talking about validations on nonpersisted fields of
persisted objects.

In general, it seems to me that the validations code is very useful,
totally outside of persistence.  Perhaps it should be taken out and made
a mixin?

(Is there a Rails equivalent of RCR's?)
leonleslie (Guest)
on 2005-11-29 16:04
(Received via mailing list)
Copied from Rails Weenie

class Contact < ActiveRecord::Base
  def self.columns() @columns ||= []; end
  def self.column(name, sql_type = nil, default = nil, null = true)
    columns <<,
default, sql_type.to_s, null)

  column :name,          :string
  column :city,          :string
  column :state,         :string
  column :phone,         :string
  column :email_address, :string

  validates_presence_of :name, :email_address
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