How to use MongoDB with CakePHP

How to use MongoDB with CakePHP 2010/9/4 Cakefest2010 Yasushi Ichikawa

TOPIC 1. Who am I 2. MongoDB 3. PHP + MongoDB 4. CakePHP + MongoDB

Yasushi Ichikawa Twitter: @ichikaway Call me ichi

My Code • I've used Cakephp since Aug 2008. • Author of the SQL Explain Component → One of Debug_kit Contributors • Author of the Cakephp MongoDB-Datasource

My Code  My code for Cakephp  http://github.com/ichikaway

MongoDB is One of NoSQL

MongoDB • Open-source non-relational DB • C++ • GNU AGPL v3.0 • Many Drivers(PHP, Perl, Ruby, etc) – Apache License • Company: 10gen • Download (version 1.6.2) – http://www.mongodb.org/display/DOCS/Downloads

MongoDB TERMs RDB MongoDB Table Collection Row Document Column Field

MongoDB Position • Performance – Key/Value > mongoDB >>> RDBMS • Functionality – RDBMS > mongoDB >>> Key/Value

MongoDB Provides • Scalability • Queryable • Read/Write FAST • Schema Free

MongoDB Schema • Document: bson (similar json) – Binary data • Schema Free – different schema in same collection Id, title, body Id, name, tel, fax Id, name, nickname, email Posts collection

MongoDB Schema • Embedded Object Posts collection id: 1, name: ichikaway, tel: 090-1111-2222. fax: Address skill Country: Japan, Java: 2years, Zip: 222-3333 PHP: 3years id: 2, name: Yasushi, tel: 090-3333-4444. fax: id: 3, name: Ninjaaa, tel: 090-5555-6666. fax:

RDB Schema • RDB schema • Natural data structure?? Screen Blog Blog table Tags table Title Title Tag1 Text Text Tag2 Tag3 tag1,tag2,tag3 RDB Comment Table Comment1 Comment2 Comment1 Comment3 Comment2 Comment3

MongoDB schema • Schema Free – Natural data structure Screen Blog Blog collection Title Title : xxxx Text Text : yyyy tag1,tag2,tag3 Mongo Tag: [tag1,tag2,tag3] Comment: [comment1, Comment1 comment2, Comment2 comment3 Comment3 ]

MongoDB In Production github, heroku(MongoHQ), etc

MongoDB Production Case • Business insider • http://www.businessinsider.com/how-we-use-mongodb-2009-11 • Over 600,000 PV / business day • 3 apache + 1 mongoDB • MongoDB uses under 5% cpu time

MongoDB Fit or Not Not replace all RDBMS

MongoDB Not FIT • Need Join • Need Transaction • Small disk space – each record has field label data Posts collection id: 1, name: ichikaway, tel: 090-1111-2222. fax: 6bytes id: 2, name: Yasushi, Age: 20 . Tel: 111-2222 id: 3, name: Ninjaaa, Language: Japanese

MongoDB Fit • Need Performance – Read/Write is fast • Scale out – Master/Slave – Replica set(Automatic Failover) – Sharding

How to use

MongoDB Retrieving Data SELECT field1, field2 From blog WHERE field1 = 'aaa'; db.blog.find( { field1 : ”aaa” }, { field1 : 1, field2 : 1 } ) Collection name

MongoDB Retrieving Data SELECT * WHERE field1 > 3 ORDER BY field2 DESC LIMIT 10, 20; db.collection.find( { field1 : { $gt:3 } } ) .sort(field2: -1) .skip(10) .limit(20);

MongoDB find operators • $gt, $gte • $lt, $lte • $ne • $in • $nin • $or http://www.mongodb.org/display/DOCS/Advanced+Queries

MongoDB find tips • Regular Expressions – { name : /ichikawa.*sushi/i } • Embedded Object – { "author.name" : "ichikawa" } Blog collection Title : xxxx Text : yyyy author: { name : 'ichikawa', age : 15 }

MongoDB DEMO

SQL to Mongo Mapping Chart http://www.mongodb.org/display/DOCS/SQL+to+Mongo+ Mapping+Chart

MongoDB Indexing Create Index db.collection.ensureIndex({“title” : 1}) Delete Index db.collection.dropIndex({“title” : 1}) Create Embedded Doc Index db.collection.ensureIndex ({“Autor.name” : 1}) Create Index(Background) db.collection.ensureIndex ({“title” : 1}, {background:true} )

Cool Stuffs of MongoDB Geospatial Index Capped Collection

MongoDB Geospatial Index  Version 1.3.3+ , recommend 1.6.2+ (Bug fix)  Calculate location data – Latitude(緯度), Longitude(経度)  find the closest location with Operators – $near: sort from the closest point – $box: find points within the rectangle – $center: find points within the circle

MongoDB Geospatial Index  Insert data db.geotest.save({ loc:[ 35, 139 ] }) Latitude Longitude  create Index db.geotest.ensureIndex( {loc:”2d”} )

MongoDB Geospatial Index  Find the point db.geotest.find({ loc:[35, 140] });  $near db.geotest.find({ loc:{ $near : [30, 130] } })

MongoDB Geospatial Index  $box – lower left, upper right db.geotest.find({ loc:{ $within:{ $box: [[1, 1], [10,10]] }}});  $center – set radius(degree) db.geotest.find({ loc:{ $within:{ $center: [[10, 10], 0.1 ] } radius(degree) }})

MongoDB Geospatial Index DEMO

MongoDB Capped Collection  Creating a Fixed Size (capped) Collection  Not think about data space / overflow • Age out data is deleted when Collection is full • Good for – Logging – Caching db.createCollection("testcap1", {capped: true, size:5000});

MongoDB Attension  32bit version limitation –can't save data over 2Gbytes

MongoDB Books http://www.mongodb.org/display/DOCS/Books

Pecl Mongo Driver • Apache License • Setup pecl install mongo extension=mongo.so (php.ini) • Manual –http://us2.php.net/mongo

Pecl Mongo • Connect $mongo = new Mongo(localhost:27017); $db = $mongo->selectDB('blog'); • select collection $collection = $db->selectCollection('posts'); • Find $collection->find($cond, $filed) ->sort()->limit(5)->skip();

Pecl Mongo $data = array('field1' => 'val1', 'field2' => 'val2'); • Insert $collection->insert($data); • Update $new = array('$set' => array('field2' => 'aa')); $cond = array('field1' => 'val1'); $collection->update($cond, $new);

MongoDB Datasource  Developed since Jan, 2010  PHP5+  Pecl Mongo  CakePHP1.2+ – Recommend Cake1.3

MongoDB Datasource  Version 0.3 – set schema info to Model::schema – test cases  Version 0.4 – create schema info from Post data – show command log Huge Thanks AD7six

Cake Datasource  The link between models and the source(DB)  Transparency – Use Mongo from Model methods – connect to MongoDB and use collection automatically

Cake calls Datasource methods Model Method Datasource find() read() save() create() save() update() delete() delete()

Let's use

Setup  cd app/plugins  git clone http://github.com/ichikaway/mongoDB- Datasource.git mongodb  cd app/config  vi database.php

database.php <?php class DATABASE_CONFIG { public $default = array( 'driver' => 'mongodb.mongodbSource', 'database' => 'cakemongo1', 'host' => 'localhost', 'port' => 27017, );

Sample Cake Mongo DEMO Sample1

Sample2

Sample Cake Mongo part 2  Delete History  Main data is stored in MySQL  save deleted records in history table  search history records

Sample Cake Mongo part 2 MySQL App Default Schema CakePHP Post table User table

Sample Cake Mongo part 2  RDB way  copy schema(all table)

Sample Cake Mongo part 2 MySQL App Default Schema CakePHP Post table User table 1. Delete Copy Schema Post table User table 2. save

Sample Cake Mongo part 2  RDB way  copy schema(all table)  Hard to maintain both schema  serialize deleted record, save in history table  Hard to search in history table

Sample Cake Mongo 2 Mongo Way

Sample Cake Mongo part 2 MySQL App Default Schema CakePHP Post table User table 1. Delete MongoDB History Collection {'post' : Post record} 2. save {'user' : User record}

Sample Cake Mongo 2 DEMO

Sample Cake Mongo 2  Good Fit Document Database – save different table records in one collection  Don't need prepare schema before Save  Search easily in History Collection

Summary  MongoDB - Good case - Query - Geospatial Index - Capped Collection  PHP + MongoDB  CakePHP + MongoDB

Thank you! Questions? Please, speak slowly :)

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How to use MongoDB with CakePHP

by ichikaway on Sep 04, 2010

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How to use MongoDB with CakePHP — Presentation Transcript