Rails - Apr 2006 - ActiveRecord object

I have an ActiveRecord class

 

class User < ActiveRecord::Base

end

 

and I want to define an attribute, in example "links", links will be
an
array.

 

class User < ActiveRecord::Base

  attr :links

end

 

and now, I want links to be an array, so I do

 

class User < ActiveRecord::base

  attr:links

 

  def initialize(attributes)

    super(attributes)

    @links = Array.new

    yield self if block_given?

  end

end

 

but then I do

users = User.find(:all)

user = users[0]

user.links.find {|x| x == "foo"}

 

and it gives me an error because it says that user.links is null

 

What is my mistake? I just need the attribute links to be an array

 

Rodrigo Dominguez

 

Iplan Networks                Datos Personales

rdominguez@iplan.com.ar       rorra@rorra.com.ar

www.iplan.com.ar <http://www.iplan.com.ar/>
www.rorra.com.ar <http://www.rorra.com.ar/> 

5031-6303                     15-5695-6027

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://wrath.rubyonrails.org/pipermail/rails/attachments/20060404/562b146d/attachment.html

Rodrigo Dominguez wrote:
> class User < ActiveRecord::base
>   attr:links
>   def initialize(attributes)
>     super(attributes)
>     @links = Array.new
>     yield self if block_given?
>   end
> end
>  
> 
> but then I do
> 
> users = User.find(:all)
> user = users[0]
> user.links.find {|x| x == ?foo?}
>
> and it gives me an error because it says that user.links is null
> 
>  
> 
> What is my mistake? I just need the attribute links to be an array
Records returned by find are not instantiated using new, which
calls initialize, but by allocate, which does not. Try overriding
allocate and setting links in there.

-- 
We develop, watch us RoR, in numbers too big to ignore.