From: PullMonkey <charlie@...>
Date: 2008-02-10T11:15:51+09:00
Subject: Re: Right way to access an array passed as an argument?

------=_Part_3555_15987655.1202609758279
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

You probably want is_blank? since search[:user_type_id] is a value.
is_blank? returns true if nil or an empty string
is_empty? returns true if the array has no elements

On Feb 9, 2008 7:09 PM, laredotornado <laredotornado@zipmail.com> wrote:

> Hi,
>
> In my user model class, I have:
>
> class User < ActiveRecord::Base
> ...
>  def self.search(search)
>        conditions = []
>        if !
> search[:user_type_id].is_empty?                               # line
> 26
>                conditions << 'user_type_id = ?' <<
> "#{search[:user_type_id]}"
>        end
>        if !search[:ship_to_first_name].is_empty?
>                conditions << 'ship_to_first_name LIKE ?' <<
> "%#{search[:ship_to_first_name]}%"
>        end
>        if !search[:ship_to_last_name].is_empty?
>                conditions << 'ship_to_last_name LIKE ?' <<
> "%#{search[:ship_to_last_name]}%"
>        end
>        find(:all, :conditions => conditions )
>  end
>
> I am passing my "params" array to this function.  The array params
> contains a hidden field, "user_type_id," that is always defined.  But
> when I execute the above, I get the error
>
>
> You have a nil object when you didn't expect it!
> The error occurred while evaluating nil.is_empty?
> RAILS_ROOT: /usr/local/apache2/htdocs/easyrx
> Application Trace | Framework Trace | Full Trace
> app/models/user.rb:26:in `search'
> app/controllers/super_admin/subscriber_controller.rb:15:in
> `searchresults'
>
>
> so I'm thinking "search[:user_type_id]" is not the right way to access
> the parameter value.  If I try ":search[:user_type_id]", I also get
> the error.
>
> Thanks for any help, - Dave
>
>
>

------=_Part_3555_15987655.1202609758279--