mmaa

envelope_balance =

EnvelopeTransaction.where(
  :destination => [self]).sum(:amount) -

EnvelopeTransaction.where(
  :source_type => envelope,
  :source_id   => [self]).sum(:amount)

mmaa

% RAILS_ENV=production rake middleware
use ActionDispatch::Static
use Rack::Lock
use ActiveSupport::Cache::Strategy::LocalCache
use Rack::Runtime
use Rails::Rack::Logger
use ActionDispatch::ShowExceptions
use ActionDispatch::RemoteIp
use Rack::Sendfile
use ActionDispatch::Callbacks

mmaa

module Resque
  ...
  class Worker
  ...
  def perform(job)
    begin
      run_hook :after_fork, job
      job.perform
    rescue Object => e
      break if e.is_a?(Resque::DirtyExit) # This is the line I added.