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Passing information from the controller to model

Oct 11, 2008

A refresher for passing information only available to the controller to a model.

Firstly you will need set up attr_accessor on the model to receive the object or value from the controller.

class Model < ActiveRecord::Base
  ...
  attr_accessor :current_user
  ...
end  

The controller can easily pass an object or value as set up with attr_accessor by taking an instances of the model and using the virtual attribute pass in the object.

class CompaniesController < ApplicationController
...
  def create
    @company = Company.new
    @company.current_user = current_user
    ...
  end
end  

The value is passed in from the controller can now be accessed within the model using the virtual attribute as the instance variable @current_user. Please note: This can also be done by defining methods

def current_user
    ...
end 

def current_user=(user)
  @current_user = user
end  

Posted by Thomas Cowell

Tags: rails

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