Processing 1.0 - Processing Discourse - ruby-processing & active record

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ruby-processing & active record (Read 3260 times)

rupert

ruby-processing & active record
Aug 31^st, 2008, 1:11am

I've managed to get ruby-processing running happily on my mac (excellent stuff jashkenas). What I'd like to be able to do is source data that I'm displaying in processing from a MySQL database.

I'm very familiar with active record (using MRI ruby) so it would be great if I could use it (familiarity and all that) inside ruby-processing. However, this is my first foray into jruby and I can't work out how to do this. I think I've got the requisite gems installed on my machine:

activerecord (2.1.0)
activerecord-jdbc-adapter (0.8.1)
activerecord-jdbcmysql-adapter (0.8.1)
activesupport (2.1.0)
jdbc-mysql (5.0.4)

But I can't work out how to require activerecord into my app inside the samples directory. I've tried all combinations of:

require 'rubygems'
require 'activerecord'
load_ruby_library "rubygems"
load_ruby_library "activerecord"

and it's not able to find the darn things - sob. Has anyone tried this and if so any pointers would be gratefully received.

Cheers

Rupert

rupert

Re: ruby-processing & active record
Reply #1 - Sep 1^st, 2008, 7:43pm

solved *phew*

bad form I know following myself up - but after ending up having to work in the Java world to access my databases the pain got too much so I managed to crack the nut of using ActiveRecord within ruby-processing.

For now it's sitting in my git account (only just got it up there):

http://github.com/rupert/ruby-processing

there's an active_record_for_ruby_processing folder within the library folder.This contains activerecord and activesupport from rails 2.1.0 together
with the hacks needed to get it to work and a database.yml file for
the configuration as per rails-sylee.

I've also added a sample to the samples folder which uses it.

Otherwise it's as per Jeremy's current master on github. I've only just mailed Jeremy about it so haven't updated the ruby-processing wiki yet, but will add something there soon.

Cheers

Rupert

jeferonix

Re: ruby-processing & active record
Reply #2 - Sep 12^th, 2008, 8:10pm

This is fantastic, rupert, thanks for posting this. I'm thinking about building a bit of a framework on ruby-processing, with more convention over configuration, and some other neato-features too. I hate that you have to configure so much to get anything drawn... the Rails world would seem to have a lot to offer ruby-processing. Also i'm thinking of adding natural-language color naming, like:

fill :bright_green
stroke :dark_grey

and fonts like:

font :garamond

or perhaps allowing people to configure defaults in a YAML file, even class-based ones as a kind of CSS... you could establish some styles and assign them to primitives with inheritance etc.

Seems like a lot could come of this, not least that in theory one could run a console-like Ruby interpreter in there and allow users to code directly into an app.

tassock YaBB Newbies Offline Posts: 3	Re: ruby-processing & active record Reply #3 - Nov 7^th, 2009, 12:42pm The link no longer works and the github account no longer seems to exist. Google can't find it either. Anyone have a link or copy for this? Looks interesting.

tassock

Re: ruby-processing & active record
Reply #4 - Jan 12^th, 2010, 9:43pm

I got this working with sqlite btw. The key is using the right connection adapter (use the current jruby one). Here's some example code:

Code:


load_libraries 'active_record', 'jdbc-sqlite3'

# connect to database.  This will create one if it doesn't exist
MY_DB_NAME = ".my.db"
MY_DB = SQLite3::Database.new(MY_DB_NAME)

# get active record set up
ActiveRecord::Base.establish_connection(:adapter => 'sqlite3', :database => MY_DB_NAME)

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