How to use the “number_to_currency” helper method in the model rather than view?

Question

I would like to use to_dollar method in my model like this:

module JobsHelper      
  def to_dollar(amount)
    if amount < 0
      number_to_cur         


        

Answer 1

It is not a good practice but it works for me!

to import include ActionView::Helpers::NumberHelper in the controller. For example:

class ProveedorController < ApplicationController
    include ActionView::Helpers::NumberHelper
    # layout 'example'

    # GET /proveedores/filtro
    # GET /proveedores/filtro.json
    def filtro
        @proveedores = Proveedor.all

        respond_to do |format|
            format.html # filtro.html.erb
            format.json { render json: @proveedores }
        end
    end

    def valuacion_cartera
        @total_valuacion = 0
        facturas.each { |fac|
            @total_valuacion = @total_valuacion + fac.SumaDeImporte
        }

        @total = number_to_currency(@total_valuacion, :unit => "$ ")

        p '*'*80
        p @total_valuacion
    end
end

Hope it helps you!