This is the lightning talk about sumo db for the ruby conf argentina 2013 11/28/2013

1. Who the f...?
●
Marcelo Gornstein
●
Open source author/contributor
●
Erlang code monkey at inaka
http://www.inaka.net
●
We do lots of erlang
–
Whisper, TigerText
–
Inaka Live (FoxNews)
●
Twitter: @mgornstein
●
Github: marcelog
●
marcelog@gmail.com

2. Sumo DB

3. Sumo DB
●
Persistence layer.
●
By Inaka (yey!) and we use it, too
●
Written in Erlang, for Erlang applications
●
Nothing similar in the pure erlang world
●
Kind of an ORM (if you know elixir, it's similar to ecto)
●
●
Finally! Decouple your business logic from your state and
your storage backend
No more “god” modules

4. Sumo DB
●
Supports MySQL
●
A bit of support for MongoDB and Redis
●
Planned to support sqlite, mnesia, maybe others
●
Allows to use multiple databases in your code
●
Behaviors: Storage backends, repos, docs (entities). Go
ahead, Implement your own :)

5. Sumo DB
●
Repository Pattern
●
Entities encapsulate state and behavior
●
●
Repositories handle implementation details of the
storage backend
Domain events

6. Sumo DB
NewUser = sumo_db:persist(mywebsite_user, User).
sumo_db:delete(mywebsite_user, Id).
User = sumo_db:find(mywebsite_user, Id).
Users = sumo_db:find_by(mywebsite_user, [{age, Age}]).
sumo_db:find_by(mywebsite_user, [{age, Age}], Limit, Offset).

7. Sumo DB
{ sumo_db, [
{storage_backends, [
{my_mysql_backend, sumo_backend_mysql, [
{username, "user"},
{password, "pass"},
{host, "127.0.0.1"},
{port,3306},
{database, "test"},
{poolsize, 10}
]}
]},
{repositories, [
{users_repo, module_repo, [
{storage_backend,my_mysql_backend},
{workers, 10}
]}
]},
{docs, [{users, user_repo}]}

8. Sumo DB
●
https://github.com/inaka/sumo_db
●
https://github.com/marcelog
●
Twitter: @inaka, @mgornstein
●
http://marcelog.github.io/articles/articles.html
●
We want YOU :) Come and learn Erlang with us :)
https://github.com/inaka/erlang_training