sails-solr


<img src="http://lucene.apache.org/solr/assets/identity/Solr_Logo_on_white.png"width="100"/> sails-solr

Provides easy access to solr from Sails.js & Waterline.

This module is a Waterline/Sails adapter, an early implementation of a rapidly-developing, tool-agnostic data standard. Its goal is to provide a set of declarative interfaces, conventions, and best-practices for integrating with all sorts of data sources.

The main goal is a simple usage and integration of a full managaged Solr.

Installation

To install this adapter, run:

$ npm install sails-solr

Getting started with sails-solr

To install/start solr if you not have one running

make kickstart

Note: not recommended for production systems! Solr installation Tomcat for more

Configuring Connections

Add the solr configuration to the config/connections.js file. The basic options are as follows:

module.exports.connections = {
  solrConnectionOne: {
    module : 'sails-solr',
    host: 'localhost',
    port: 8983,
    core: 'schemaless',
    schema: true,
    migrate: 'drop'
  }
};

Note: you can define multiple solr connections/cores. By default sails-solr will run multiple models inside one core manageCores. Connection Options

Configuring Models

And then change default model configuration to the config/models.js:

module.exports.models = {
  connection: 'solrConnectionOne',
  attributes: {
    name:'string'
    ...
  }
};

Note: you can add more model based configuartion Model Options / Connection Options

Usage

create a user:

  User.create({name:'foo'},console)

find a user:

  User.find({name:'foo'},console);
  User.findOne({name:'foo'},console);
  User.findByName('foo',console);

Note: See Waterline Documentation Query Language and Query Methods

Special Adapter Interfaces

Autocompleter

search suggestion and spellchecked phrase. Known as "Did You Mean: foo?"

  // as sails request  see hooks and blueprint
  // http://localhost:1337/user/suggest/foa

  // in node
  User.suggest('foa', console);

  //response 
  {
  "responseHeader": {
    "status": 0,
    "QTime": 1
  },
  "spellcheck": {
    "suggestions": [
      "foa",
      {
        "numFound": 1,
        "startOffset": 0,
        "endOffset": 9,
        "origFreq": 0,
        "suggestion": [
          {
            "word": "foo",
            "freq": 1
          }
        ]
      }
    ],
    "correctlySpelled": false,
    "collations": [
      "collation",
      "foo"
    ]
  },
  "suggest": {
    "suggest": {
      "foa": {
        "numFound": 2,
        "suggestions": [
          {
            "term": "foo",
            "weight": 0,
            "payload": ""
          },{
            "term": "foo bar",
            "weight": 0,
            "payload": ""
          }
        ]
      }
    }
  }
}

Layerd Navigation

Well known as filter. facet for strings and min,max,avg for ìnteger to build Options and Range Slider Elemets. Query Methods

  // as sails request  see hooks and blueprint
  // http://localhost:1337/user/catalog/?name="*"&limit=3&sort=age asc&skip=0

  // in node
  User.catalog({name:'foo'},console);

  //response 
  {
  "responseHeader":{
    "status":0,
    "QTime":1,
    "params":{
      "q":"*:*",
      "indent":"true",
      "stats":"true",
      "sort":"percent asc",
      "rows":"100",
      "wt":"json",
      "stats.field":["age",
        "percent"]}},
  "response":{"numFound":13,"start":0,"docs":[
      {
        "name":"foo",
        "age":10,
        "color":"blue",
        "createdAt":"2015-12-30T23:32:24.755Z",
        "updatedAt":"2015-12-30T23:32:24.755Z",
        "id":"612bb75f-be0f-496b-ba51-8e79ee786c50"},
      {
        "name":"bar",
        "age":20,
        "color":"yellow",
        "createdAt":"2015-12-30T23:15:09.859Z",
        "updatedAt":"2015-12-30T23:15:09.859Z",
        "id":"517a4917-b3b8-4ea0-a3fd-acd41497b6e0"},
      {
        "name":"john",
        "age":30,
        "color":"black",
        "createdAt":"2015-12-30T23:15:10.859Z",
        "updatedAt":"2015-12-30T23:15:10.859Z",
        "id":"515a4917-b3b8-4ea0-a3fd-acd4149432fd"},
  },
  "facet_counts": {
    "facet_queries": {},
    "facet_fields": {
        "name": [
        {
          "blue":1},
        {
          "yellow":1},
        {
          "black":1},
      ]
    },
    "facet_dates": {},
    "facet_ranges": {},
    "facet_intervals": {},
    "facet_heatmaps": {}
  },
  "stats":{
    "stats_fields":{
      "age":{
        "min":10.0,
        "max":30.0,
        "count":3,
        "missing":0,
        "sum":60.0,
        "sumOfSquares":100,
        "mean":20,
        "stddev":10}}}}

Supported Waterline Interfaces

Type	Methods	Build
Semantic	create, createEach, find, count, update, destroy
Migratable	define, describe, drop, alter, addAttributes, remove, attributes, addIndex, removeIndex
Queryable	where, limit, sort, skip, select

Note: See Waterline Documentation

Special Adapter Interfaces

Type	Methods	Build
Suggest	suggest. Return on Object with suggestions and spellecked the requestet term or phrase
Catalog	catalog. Return an Object with matching results and Layered Navigation as facet and stats

Advanced Configuration

Connection Options

Params	Default	Description
host	'localhost'
port	'8983'
core	'schemaless'
manageCores	true	create cores if not exists CoreAdmin
schema	true	allow migrate drop, alter schema manage schema
single	false	force manageCores to create a core for each model
fieldTypeMap	fieldTypes	Field Type Map
useFqParam	true	force query mapping as fq=name:foo param
schemaDefaultFieldTypes	{}
debugAdapter	false
debugCollection	false
debugQuery	false
debugSolr	false

Model Options

{
  attributes: {
    first_name: {
      type:'string'
      // Overwrite per Field
      schemaDefaultFieldAttributes: {
        indexed: true,
        type: 'text_de'
      }
    }
  }
  // Overwrite per Model
  schemaDefaultFieldAttributes: {
    indexed: false
  }
}

Field Type Map

The following table represents mappings between Sails/Waterline model data types and Solr field types:

Sails/Waterline Type	Solr Type
string	text_general
text	text_general
binary	text_general
integer	int
float	float
date	date
time	date
datetime	date
boolean	boolean
binary	text_general
array	text_general
json	text_general
point	point

Note: You can even define your custom mapping as fieldTypeMap: inside connection settings and as model option. If you want a field type explicit mapping use fieldType as additional fieldTypeMapattribute

Solr default field attributes

The following table represents Solr field attributes:

Solr Field Attributes	Default
name	newField
type	text_general
indexed	true
stored	true
docValues	false
sortMissingFirst	false
sortMissingLast	false
multiValued	false
omitNorms	true
omitTermFreqAndPositions	false
omitPositions	false
termVectors	true
termPositions	false
termOffsets	false
termPayloads	false
required	false
dynamicField	false
json	text_general

Note: You can even define your custom field attribute default as schemaDefaultFieldAttributes: inside connection settings and as model option. If you want a field attribute explicit you can add this attribute as an additional option inside the Model attribute settings

Running the tests

$ npm test

TODO:

• more test
• documentation
• cleanup and refactoring
• build an e-commerce like demo application with autocomplete and layerd navigation

More Resources

• Solr
• Waterline
• Sails

License

MIT