Our Adventure with MongoDB

Our Adventure With MongoDB, Rails & Friends Chicago Ruby October 2010

Ethan Gunderson http://ethangunderson.com Twitter & Github: ethangunderson

Our Agenda 1) gathers.us 2) Choosing an ODM 3) Data modeling 4) Other fun Mongo events 5) Q & A

Manage events

Manage your groups (coming soon)

Aggregate your social content (coming soon)

Data needs High Value Low Value Groups Social Events Events RSVPs

Lotʼs of options for Rails integration MongoMapper Mongoid MogoDoc Mongomatic Candy

We chose ... The strait Mongo Ruby driver!

ORMs are worthless if you donʼt understand what theyʼre doing.

Simple to use

Learn your tools

We avoided one until it became too painful not to use one.

In the end, we chose Mongoid

Rails 3 support

Nice query syntax

Safe mode

Master / Slave

Our data model

Introducing groups

Option 1

Option 2

YEAH!!!

This idea actually sucks

Mongoʼs 4MB document limit Among other things, it keeps people like us, from doing things like that.

In reality, documents shouldnʼt be bigger than ~250kb Inefﬁcient when... 1) updating on the server 2) transferring across the network 3) serializing to and from BSON

Option 3 single collection inheritance

Mongoid Support

Top level objects are still top level objects

Moral of the story is, data modeling is still hard

ChicagoDB October October 18th, 6:00pm Obtiva Studio http://chicagodb.com The CTO of 10gen, Eliot Horowitz, will give us an in depth look at the components that make up MongoDB

Mongo Chicago October 20th, 9am - 6pm IIT http://10gen.com/conferences/mongochicago2010 21 presentations by Mongo users and 10gen employees covering a wide array of topics from Mongo basics to Sharding architecture.

Q&A http://spkr8.com/t/4704

Our Adventure with MongoDB

by Ethan Gunderson on Oct 10, 2010

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Our Adventure with MongoDB — Presentation Transcript