angular-cached-resource/lib/modify_object_in_place.js

An AngularJS module to interact with RESTful resources, even when browser is offline

// Generated by CoffeeScript 1.10.0
var modifyObjectInPlace;

module.exports = modifyObjectInPlace = function(oldObject, newObject, cachedObject) {
  var i, j, key, len, len1, localChange, localChanges, ref, ref1;
  ref = Object.keys(oldObject);
  for (i = 0, len = ref.length; i < len; i++) {
    key = ref[i];
    if (!(key[0] !== '$')) {
      continue;
    }
    localChange = cachedObject && (cachedObject[key] == null);
    if (!((newObject[key] != null) || localChange)) {
      delete oldObject[key];
    }
  }
  ref1 = Object.keys(newObject);
  for (j = 0, len1 = ref1.length; j < len1; j++) {
    key = ref1[j];
    if (key[0] !== '$') {
      if (angular.isObject(oldObject[key]) && angular.isObject(newObject[key])) {
        modifyObjectInPlace(oldObject[key], newObject[key], cachedObject != null ? cachedObject[key] : void 0);
      } else {
        localChanges = cachedObject && !angular.equals(oldObject[key], cachedObject[key]);
        if (!(angular.equals(oldObject[key], newObject[key]) || localChanges)) {
          oldObject[key] = newObject[key];
        }
      }
    }
  }
  if (newObject.length != null) {
    return oldObject.length = newObject.length;
  }
};