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# Superstore [](http://travis-ci.org/data-axle/superstore) [](https://codeclimate.com/github/data-axle/superstore) Cassandra Object uses ActiveModel to mimic much of the behavior in ActiveRecord. ## Installation Add the following to your Gemfile: ```ruby gem 'superstore' ``` Change the version of Cassandra accordingly. Recent versions have not been backward compatible. ## Defining Models ```ruby class Widget < Superstore::Base string :name string :description integer :price array :colors, unique: true validates :name, presence: :true before_create do self.description = "#{name} is the best product ever" end end ``` ## Using with Cassandra Add the cassandra-cql gem to Gemfile: ```ruby gem 'cassandra-cql' ``` Add a config/superstore.yml: ```yaml development: adapter: cassandra keyspace: my_app_development servers: 127.0.0.1:9160 thrift: timeout: 20 retries: 2 ``` ## Using with Postgres HStore Add the pg gem to your Gemfile: ```ruby gem 'pg' ``` And a config/superstore.yml: ```yaml development: adapter: hstore ``` ## Creating and updating records Cassandra Object has equivalent methods as ActiveRecord: ```ruby widget = Widget.new widget.valid? widget = Widget.create(name: 'Acme', price: 100) widget.update_attribute(:price, 1200) widget.update_attributes(price: 1200, name: 'Acme Corporation') widget.attributes = {price: 300} widget.price_was widget.save widget.save! ``` ## Finding records ```ruby widget = Widget.find(uuid) widget = Widget.first widgets = Widget.all Widget.find_each do |widget| # Codez end ``` ## Scoping Some lightweight scoping features are available: ```ruby Widget.where('color' => 'red') Widget.select(['name', 'color']) Widget.limit(10) ```
Version data entries
12 entries across 12 versions & 1 rubygems