It was working fine until I added the 2nd order relationship. The
documentation isnt clear about how to add the 2nd order relationship
On Nov 15, 6:20 pm, Everaldo Gomes wrote:
Hi!

The call to to_json shouldn't be the last call in the statement?

Regards,
Everaldo






On Tue, Nov 15, 2011 at 9:06 PM, John Merlino wrote:
this error usually occurs when trying to mix 1st and 2nd order
relationships in a single to_json call:
undefined method `macro' for nil:NilClass
Rails 3 has this way to support 2nd order relationships:
http://apidock.com/rails/ActiveRecord/Serialization/to_json
So I try to use it:
@units = User.where(:id =>
params[:user_id]).first.units.to_json(:include => {
:only => :reports,
:notifications => {:include => {:only
=> :notification_codes} }
})
A unit has many reports and notifications. And a notification belongs
to notification code.
This is the relationship between notifications and notification codes:
//notifications
belongs_to :notification_code, :foreign_key => :code
//notification codes
has_many :notifications
So I am not sure why error occurs.
Thanks for response
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postedNov 15, '11 at 11:19p
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