redux-resource/lib/utils/upsert-resources.js

Resource management for Redux.

'use strict';

exports.__esModule = true;

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; };

exports.default = upsertResources;

var _warning = require('./warning');

var _warning2 = _interopRequireDefault(_warning);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

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

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

  if (Array.isArray(newResources)) {
    newResources.forEach(resource => {
      const resourceIsObject = typeof resource === 'object';
      const 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') {
          (0, _warning2.default)(`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;
      }

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

      const 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;
      }

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

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

      const resourceAlreadyExists = Boolean(resources[id]);

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

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

      shallowClone[id] = resourceToInsert;
    }
  }

  return shallowClone;
}