Accessing data from ActiveRecord

Question

I have a model which has a scope that returns all potentially eligible customers for an automated emailing list; however, there are further checks that are required.

To get the fields needed for the email, I do the following (snippet):

Customers.eligible.each do |customer|
  name: customer.order.first_name
  email: customer.order.contact_info.email
end

I was wonder if there is a nicer way to do this? I'd usually extract the logic into it's own method, eg

def first_name
  customer.order.first_name
end

However, as I have to iterate over each eligible active record, I am unable to do this.

Any ideas? All help is appreciated.

Thanks.

Answer 1

From my personal experience you should be able to able to use the first_name instance method. For the below class method you can definitely evoke the first_name instance method per each customer object.

Customers.eligible.each do |customer|
 name: customer.first_name
 email: customer.order.contact_info.email
end

def first_name
 self.order.first_name
end

Just make sure not to use the instance methods with customer instance which are not eligible for the mail list.