Use ActiveRecord::Reflection::AssociationReflection to create object

[outputstream]

add_nested_fields.rb line 8 should be

:object => form_builder.object.class.reflect_on_association(field).klass.new

instead of

:object => field.to_s.classify.constantize.new

[miletbaker]

Hi,

I am happy to amend but would appreciate you clarifying what issues this overcomes?

Regards,
Jon

[outputstream]

Hi, jon

for example

#Model

class User < ActiveRecord::Base

has_many :addresses

has_many :permissions, :class_name => "SystemPermission"

end

class User::Address < ActiveRecord::Base

belongs_to :user

end

has_many :address is automatic map to Address or ::Address or User::Address

#View

<%= add_nested_fields_for(f, :addresses, 'addresses' ) %>
Undefined constant Address
if use reflection, the class is User::Address

<%= add_nested_fields_for(f, :permissions, 'permissions' ) %>
Undefined constant Permission
if use reflection, the class is SystemPermission

enjoy,
Anuwat