redux-resource-support-unshift-list/es/utils/upsert-resources.js

Resource management for Redux.

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

import warning from './warning';

// Add or update resources
export default function upsertResources(resources, newResources, mergeResources) {
  if (!newResources) {
    return resources;
  }

  var mergeResourcesOption = typeof mergeResources !== 'undefined' ? mergeResources : true;
  var shallowClone = Object.assign({}, resources);

  if (Array.isArray(newResources)) {
    newResources.forEach(function (resource) {
      var resourceIsObject = (typeof resource === 'undefined' ? 'undefined' : _typeof(resource)) === 'object';
      var id = resourceIsObject ? resource.id : resource;

      // If a resource doesn't have an ID, then it cannot be tracked
      if (!id && id !== 0) {
        if (process.env.NODE_ENV !== 'production') {
          warning('You attempted to update or add a resource without an ID attribute. ' + 'Redux Resource requires that all resources have an ID. You should ' + 'double-check your Action Creators to make sure that all entries in ' + 'are either an ID or an object with an "id" attribute. ' + 'For more information, refer to the documentation on resource objects at: ' + 'https://redux-resource.js.org/docs/resources/resource-objects.html', 'MISSING_ID_UPSERT');
        }

        return;
      }

      var resourceObj = resourceIsObject ? resource : { id: resource };

      var resourceAlreadyExists = Boolean(resources[id]);

      // If there is no existing resource, we just add it to the resources object
      if (!resourceAlreadyExists) {
        shallowClone[id] = resourceObj;
        return shallowClone;
      }

      var resourceToInsert = void 0;
      if (mergeResourcesOption) {
        var currentResource = shallowClone[id];
        resourceToInsert = Object.assign({}, currentResource, resourceObj);
      } else {
        resourceToInsert = resourceObj;
      }

      shallowClone[id] = resourceToInsert;
    });
  } else {
    for (var id in newResources) {
      var resource = newResources[id];

      var resourceAlreadyExists = Boolean(resources[id]);

      // If there is no existing resource, we just add it to the resources object
      if (!resourceAlreadyExists) {
        shallowClone[id] = resource;
        continue;
      }

      var resourceToInsert = void 0;
      if (mergeResourcesOption) {
        var currentResource = shallowClone[id];
        resourceToInsert = Object.assign({}, currentResource, resource);
      } else {
        resourceToInsert = _extends({}, resource);
      }

      shallowClone[id] = resourceToInsert;
    }
  }

  return shallowClone;
}