omit-irrelevant-mongoose-properties-for-obj-comparison.js

const _ = require('lodash')

const IRRELEVANT_PROPS_FOR_OBJECT_COMPARISON = ['__v', '_doc', '$__', '_id'];

/*
 * Remove properties that you don't care about from a mongoose object
 * to make comparing mongoose objects easy.
 */
omitIrrelevantMongoosePropertiesForObjComparison(obj) {
  let relevantObjProps;
  if (obj.schema && obj.schema.paths) {
    relevantObjProps = _.omit(obj.schema.paths, IRRELEVANT_PROPS_FOR_OBJECT_COMPARISON);
  } else {
    relevantObjProps = _.omit(obj, IRRELEVANT_PROPS_FOR_OBJECT_COMPARISON);
  }
  return  _.pick(obj, _.keys(relevantObjProps));
}