lazybensch/ember-cli-filter-by-query

import { A, makeArray } from '@ember/array';
import { typeOf } from '@ember/utils';
import { get } from '@ember/object';
import Sifter from 'sifter';

var filterByQuery = function (array, propertyKeys, query, options) {
  if (!query) {
    return A(array);
  }

  options = typeOf(options) === 'undefined' ? {} : options;
  propertyKeys = makeArray(propertyKeys);
  var input, sifter, result, sort;
  sort = 'sort' in options ? options.sort : true;
  delete options['sort'];

  input = array.map(function (item) {
    var hash = {};
    propertyKeys.forEach(function (key) {
      hash[key] = get(item, key);
    });
    return hash;
  });

  options.fields = options.fields || propertyKeys;
  if (sort) {
    options.sort = propertyKeys.map(function (key) {
      return { field: key, direction: 'asc' };
    });
  }

  sifter = new Sifter(input);
  if (!sort) {
    sifter.getSortFunction = function () {
      return null;
    };
  }
  result = sifter.search(query, options);

  return A(
    result.items.map(function (item) {
      return A(array).objectAt(item.id);
    })
  );
};

export default filterByQuery;