react-native-firebase-compiled/es5/modules/database/Query.js

A well tested, feature rich Firebase implementation for React Native, supporting iOS & Android. Individual module support for Admob, Analytics, Auth, Crash Reporting, Cloud Firestore, Database, Dynamic Links, Functions, Messaging (FCM), Remote Config, Sto

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _utils = require("../../utils");

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

// todo doc methods

/**
 * @class Query
 */
class Query {
  constructor(ref, existingModifiers) {
    _defineProperty(this, "_reference", void 0);

    _defineProperty(this, "modifiers", void 0);

    this.modifiers = existingModifiers ? [...existingModifiers] : [];
    this._reference = ref;
  }
  /**
   *
   * @param name
   * @param key
   * @return {Reference|*}
   */


  orderBy(name, key) {
    this.modifiers.push({
      id: `orderBy-${name}:${key || ''}`,
      type: 'orderBy',
      name,
      key
    });
    return this._reference;
  }
  /**
   *
   * @param name
   * @param limit
   * @return {Reference|*}
   */


  limit(name, limit) {
    this.modifiers.push({
      id: `limit-${name}:${limit}`,
      type: 'limit',
      name,
      limit
    });
    return this._reference;
  }
  /**
   *
   * @param name
   * @param value
   * @param key
   * @return {Reference|*}
   */


  filter(name, value, key) {
    this.modifiers.push({
      id: `filter-${name}:${(0, _utils.objectToUniqueId)(value)}:${key || ''}`,
      type: 'filter',
      name,
      value,
      valueType: typeof value,
      key
    });
    return this._reference;
  }
  /**
   *
   * @return {[*]}
   */


  getModifiers() {
    return [...this.modifiers];
  }
  /**
   *
   * @return {*}
   */


  queryIdentifier() {
    // sort modifiers to enforce ordering
    const sortedModifiers = this.getModifiers().sort((a, b) => {
      if (a.id < b.id) return -1;
      if (a.id > b.id) return 1;
      return 0;
    }); // Convert modifiers to unique key

    let key = '{';

    for (let i = 0; i < sortedModifiers.length; i++) {
      if (i !== 0) key += ',';
      key += sortedModifiers[i].id;
    }

    key += '}';
    return key;
  }

}

exports.default = Query;