loopback: Model filtered properties

gistfile1.txt

var FILTERED_PROPERTIES = ['createdAt', 'updatedAt'];
Model.observe('before save', function filterProperties(ctx, next) {
  if (ctx.options && ctx.options.skipPropertyFilter) return next();
  if (ctx.instance) {
    FILTERED_PROPERTIES.forEach(function(p) { ctx.instance.unsetAttribute(p); });
  } else {
    FILTERED_PROPERTIES.forEach(function(p) { delete ctx.data[p]; });
  }
  next();
});