从控制器导轨之外的模型获取数据

Question

I need to get the profile of a selected order (Print order).

My profiles table has a user_id column and my prints table also has a user_id column.

The Profile and Print model belongs_to :user model.

Print model:

class Print < ActiveRecord::Base
  attr_accessible :comment, :document
  belongs_to :user
end

and, Profile model:

class Profile < ActiveRecord::Base
  attr_accessible :address, :name, :phone
  belongs_to :user
  has_many :prints
end

How do I get the data from the profile for prints according to the user?

Answer 1

suppose you have print object & user has one profile then

print.user.profile

Also Profile has_many :prints which is redundant you can directly used

print.profile