@data-client/normalizr/lib/delegate/Delegate.js

Normalizes and denormalizes JSON according to schema for Redux and Flux applications

import { BaseDelegate } from './BaseDelegate.js';

/** Basic POJO state interfaces for normalize side
 * Used directly as QueryDelegate, and inherited by NormalizeDelegate
 */
export class POJODelegate extends BaseDelegate {
  constructor(state) {
    super(state);
  }

  // we must expose the entities object to track in our WeakDependencyMap
  // however, this should not be part of the public API
  getEntitiesObject(key) {
    return this.entities[key];
  }
  getEntities(key) {
    const entities = this.entities[key];
    if (entities === undefined) return undefined;
    return {
      keys() {
        return Object.keys(entities);
      },
      entries() {
        return Object.entries(entities);
      }
    };
  }
  getEntity(key, pk) {
    var _this$entities$key;
    return (_this$entities$key = this.entities[key]) == null ? void 0 : _this$entities$key[pk];
  }

  // this is different return value than QuerySnapshot
  getIndex(key, field) {
    var _this$indexes$key;
    return (_this$indexes$key = this.indexes[key]) == null ? void 0 : _this$indexes$key[field];
  }
  getIndexEnd(entity, value) {
    return entity == null ? void 0 : entity[value];
  }
}
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