Sinatra ActiveRecord Extension
sinatra-activerecord gem along with one of the database adapters:
sudo gem install activerecord sudo gem install sinatra-activerecord -s http://gemcutter.org sudo gem install sqlite3 sudo gem install mysql sudo gem install postgres
adding this to your
# require your app file first require 'sinatra-ar-exmple-app' require 'sinatra/activerecord/rake'
In terminal, test that it works
$ rake -T rake db:create_migration # create an ActiveRecord migration in ./db/migrate rake db:migrate # migrate your database
Now you can create a migration
$ rake db:create_migration NAME=create_foos
This will create a migration file in ./db/migrate, ready for editing
class CreateFoos < ActiveRecord::Migration def self.up create_table :foos do |t| t.string :name end end def self.down drop_table :foos end end
run the migration
$ rake db:migrate
I like to split models out into a separate
database.rb file and then
require it from the main app file, but you can plop
the following code in about anywhere and it'll work just fine:
require 'sinatra' require 'sinatra/activerecord' # Establish the database connection; or, omit this and use the DATABASE_URL # environment variable or the default sqlite://<environment>.db as the connection string: set :database, 'sqlite://foo.db' # At this point, you can access the ActiveRecord::Base class using the # "database" object: puts "the foos table doesn't exist" if !database.table_exists?('foos') # models just work ... class Foo < ActiveRecord::Base end # see: Foo.all # access the models within the context of an HTTP request get '/foos/:id' do @foo = Foo.find(params[:id]) erb :foos end
NOTE about the rip-off
This Code and README.md is a heavy adaption of rtomayko's sinatra-sequel
Copyright (c) 2009 Blake Mizerany
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