api/query/sort.js

var admin_boost = 'admin_boost';
var population = 'population';
var popularity = 'popularity';
var category = 'category';
var category_weights = require('../helper/category_weights');
var admin_weights = require('../helper/admin_weights');
var weights = require('pelias-suggester-pipeline').weights;
var isObject = require( 'is-object' );

module.exports = function( params ){
  var scriptsConfig = [
    {
      '_script': {
        'file': admin_boost,
        'type': 'number',
        'order': 'desc'
      }
    },
    {
      '_script': {
        'file': popularity,
        'type': 'number',
        'order': 'desc'
      }
    },
    {
      '_script': {
        'file': population,
        'type': 'number',
        'order': 'desc'
      }
    },
    {
      '_script': {
        'params': {
          'weights': admin_weights
        },
        'file': 'weights',
        'type': 'number',
        'order': 'desc'
      }
    },
    {
      '_script': {
        'params': {
          'category_weights': getCategoryWeights(params)
        },
        'file': category,
        'type': 'number',
        'order': 'desc'
      }
    },
    {
      '_script': {
        'params': {
          'weights': weights
        },
        'file': 'weights',
        'type': 'number',
        'order': 'desc'
      }
    }
  ];

  return scriptsConfig;
};

function getCategoryWeights(params) {
  if (params && params.hasOwnProperty('parsed_input') &&
        (params.parsed_input.hasOwnProperty('number') ||
         params.parsed_input.hasOwnProperty('street'))) {
    return category_weights.address;
  }
  return category_weights.default;
}