jimdalbano

#' Description
#' This file runs a live election-night forecast based on The Economist's pre-election forecasting model
#' available at projects.economist.com/us-2020-forecast/president.
#' It is resampling model based on https://pkremp.github.io/update_prob.html.
#' This script does not input any real election results! You will have to enter your picks/constraints manually (scroll to the bottom of the script).
#' 
#' Licence
#' This software is published by *[The Economist](https://www.economist.com)* under the [MIT licence](https://opensource.org/licenses/MIT). The data generated by *The Economist* are available under the [Creative Commons Attribution 4.0 International License](https://creativecommons.org/licenses/by/4.0/).
#' The licences include only the data and the software authored by *The Economist*, and do not cover any *Economist* content or third-party data or content made available using the software. More information about licensing, syndication and the copyright of *Economist* content can be fou

jimdalbano

Frontend Development

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---

jimdalbano

class AddExpiresAtToOffer < ActiveRecord::Migration
  def change
    add_column :offers, :expires_at, :date

    Offer.reset_column_information
    
    Offer.find_each do |offer|
    	puts '...running loop'
		offer.update_attribute(:expires_at, offer.created_at + 6.months)
		offer.save    	

jimdalbano

after_save :expires_at #once its been saved update the expires_at attribute

def expired?
    if accepted! #if an offer has been accepted it cannot expire
      return false
    else
      created_at < expires_at ? false : true #if created_at is less than expires_at return false, else return true
    end
end