liquid.html.liquid

DOES NOT WORK:

  {% for invoice in relation.invoices.late %}
    <tr>
      <td>{{invoice.id}}</td>
      <td>{{invoice.print_date}}</td>
      <td>{{invoice.days_late}}</td>
      <td>{{invoice.priceinbtw}}</td>
    </tr>
    {% endfor %}
    
    DOES WORK
      {% for invoice in relation.invoices %}
    <tr>
      <td>{{invoice.id}}</td>
      <td>{{invoice.print_date}}</td>
      <td>{{invoice.days_late}}</td>
      <td>{{invoice.priceinbtw}}</td>
    </tr>
    {% endfor %}

model.rb

class Relation < ActiveRecord::Base
  has_many :invoices
  liquid_methods :full_name, :invoices, :letter_head
end

class Invoice < ActiveRecord::Base

  scope :late, -> {unpayed.where("print_date < ? ", (Time.now-APP_CONFIG['betaalinformatie']['termijn'].days))}
  liquid_methods :days_late, :priceinbtw, :print_date, :id, :late, :unpayed

end