function updateLoansData(response){
  var allLoans = response.data.data;
  return $q.all(allLoans.map(updateLoanData);
}

function updateLoanData(loan){
  return $q.all({
    need_vote: getPendingVotes(loan),
    has_comment: getPendingComments(loan)
  })
  .then(function(updatedData){
    angular.extend(loan,updatedData);
    return loan;
  })
}

function getPendingVotes(loan){
  return LoansFactory.getPendingVotes(loan.id)
  .then(function(response){
    return (response.data.data.length === 0);
  });
}

function getPendingComments(loan){
  return LoansFactory.getPendingVotes(loan.id)
    .then(function(response){
      return (response.data.data.length === 0);
    });
}

//do it
LoansFactory.getLoans().then(updateLoansData);