When you have multiple heroku apps, for one repo, you're going to need a hero! hero production run rake db:migrate

hero.sh

function _hero_getRemoteNames(){
  git config --get-regexp remote.*.url heroku.com |
    sed -E 's/^remote\.([^\.]*)\.url .*$/\1/'
}

function _hero_herokuAppFor(){
  git config --get remote.$1.url |
    sed -E 's/^[email protected]:([^.]*)\.git/\1/'
}

function _hero_complete(){
  if [ "$1" == "$3" ]
  then
    COMPREPLY=(`_hero_getRemoteNames | grep -E "^$2"`)
  else
    COMPREPLY=()
  fi
}

complete -F _hero_complete -o default hero
function hero(){
  APP=$(_hero_herokuAppFor $1)
  shift
  HEROKU_APP=$APP heroku $*
}