mongoose-search-plugin

Simple mongoose plugin for full text search. Uses natural stemming and distance algorythms.

Example

var mongoose = require('mongoose'),
  searchPlugin = require('mongoose-search-plugin');

var Schema = mongoose.Schema({
  title: String,
  descirption: String,
  tags: [String]
});

Schema.plugin(searchPlugin, {
  fields: ['title', 'description', 'tags']
});

var Model = mongoose.model('MySearchModel', Schema);
Model.search('some query', {title: 1}, {
  conditions: {title: {$exists: true}},
  sort: {title: 1},
  limit: 10
}, function(err, data) {
  // array of finded results
  console.log(data.results);
  // count of all matching objects
  console.log(data.totalCount);
});

Installation

$ npm install mongoose-search-plugin --save

Usage

Initialization

plugin accepts options argument with following format:

var options = {
  keywordsPath: '_keywords', // path for keywords, `_keywords` as default
  relevancePath: '_relevance', // path for relevance number, '_relevance' as default
  fields: [], // array of fields to use as keywords (can be String or [String] types),
  stemmer: 'PorterStemmer', // natural stemmer, PorterStemmer as default
  distance: 'JaroWinklerDistance' // distance algorythm, JaroWinklerDistance as default
};
Schema.plugin(searchPlugin(options));

Search

Model.search(query, fields, options, callback) options are optional. Method will return object of the following format:

{
  results: [], // array of results objects
  totalCount: 0 // number of objects, that matched criteries
}

Options has following format:

{
  conditions: {}, // criteria for query
  sort: {} // sorting parameters
  populate: [{path: '', fields: ''}], // array of paths to populate
  ... and other options of Model.find method
}

By default results sorts by relevance field, that defined in relevancePath plugin option.

Set keywords

If You start using plugin on existing database to initialize keywords field in object use setKeywords method.

Model.setKeywords(function(err) {
  // ...
});

License: MIT