mixpanel_conversion_churn.rb

def mixpanel
  @mixpanel ||= Mixpanel::Tracker.new(MIXPANEL[:token])
end
    
def user_conversion(user, converted_at = Time.now.in_time_zone('UTC'))
  properties = {
                'Converted' => converted_at,
                'Conversion Delay' => (converted_at.to_date - user.created_at.to_date).to_i
                }
  mixpanel.people.set_once(user.id, properties, nil, '$ignore_time' => true)
  mixpanel.people.unset(user.id, 'Unpaid', nil, '$ignore_time' => true)
  mixpanel.people.unset(user.id, 'Churned', nil, '$ignore_time' => true)
  mixpanel.track(user_id, 'Conversion!')
end

# options includes 'Plan' and the 'Action' that led to churn: downgrade, account deletion, charge failure
def user_churn(user, options)
  churned_at = Time.now.in_time_zone('UTC')
  converted_at = (user.converted_at || churned_at).to_date
  properties = {
                'Churned' => churned_at,
                'Plan When Churned' => user.plan_id,
                'Paid Lifetime' => (churned_at.to_date - converted_at).to_i
                }
  mixpanel.people.set(user_id, properties, nil, '$ignore_time' => true)
  mixpanel.track(user_id, 'Churn!')
end