Saving or updating multiple models


#1

Hello all,

I was wondering how one would create multiple models in one controller
action.

Consider the following models:

class Worker < ActiveRecord::Base
belongs_to :person
belongs_to :user
validates_presence_of :person_id
end

class Person < ActiveRecord::Base
has_many :workers
end

class Client < ActiveRecord::Base
has_many :workers
end

class User < ActiveRecord::Base

several validations

end

and the following controller_code:

class WorkersController < ApplicationController
def create
@worker = Worker.new(params[:worker])
@worker.person = Person.new(params[:person])
@worker.user = User.new(params[:user]) if @worker.is_contact

   if @worker.save
      # success
   else
      # failure
   end

end
end

The problem as far as I can see here is, that the @worker model is
tried to be saved, without saving the children first.

Another thing is, when I do things like:

@worker.person.save
@worker.save

than the @worker doesn’t get saved because it doesn’t know the
@worker.person_id .

How to save multiple models from one controller respecting callbacks (
before_save, before_create, etc…) ?


Sincerely,

Frodo L.