qvc/constraints/NotEmpty.js

Handle commands and queries from the client with validation

function NotEmpty(message){
  this.message = message;
}

NotEmpty.prototype.constraint = function(){
  return {
    message: this.message
  };
};

NotEmpty.prototype.isValid = function(value){
  if(value == null) return false;
  if(typeof value == "string" && value.length == 0) return false;
  return true;
};

module.exports = NotEmpty;