Posts tagged “models”

May 2011 · 1 min read

Reusing Scopes (Formerly Named_scope) In Rails 3

You can easily chain scopes together in your models. class Article < ActiveRecord::Base scope :ordered, order('position ASC') scope :published, ordered.where('published = ?', true) scope...

active record models named scopes scopes ruby on rails

Aug 2010 · 1 min read

Load All ActiveRecord::Base Model Classes in Rails Application

Here is a simple rake task which will instantiate all of your Active Record models, provided that they are located in the RAILS\ROOT/app/models directory. Interestingly, all plugin models are...

active record classify constants initialize load models rake ruby on rails programming

Apr 2009 · 1 min read

Validate Uniqueness on Join Tables in Rails

How to validate uniqueness in a :has\many :through relationship with Ruby on Rails. You'll need three models in this example List, Subscriber and ListSubscriber. A list has many subscribers and a...

has_many models relationships through validates_uniqueness_of ruby on rails

#models

Reusing Scopes (Formerly Named_scope) In Rails 3

Load All ActiveRecord::Base Model Classes in Rails Application

Validate Uniqueness on Join Tables in Rails

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