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What's the difference between design pattern and enterprise design pattern?

Rails ActiveRecord: Skip validations for associations

Skip attributes having nil values when to_json on ActiveRecord

ruby json activerecord

ActiveRecord query for a count of new users by day

Rails 3, many-to-many form using accepts_nested_attributes_for, how do I set up correctly?

Rails is this query open to sql injection?

where does database.yml get loaded in ActiveRecord in Rails 4?

Rails - Update object from params

How can I load Globalize translation fixtures to test models?

Explanation of the @ variables inside Rails models

Getting count of elements by `created_at` by day in a given month

How to validate a price (money amount) mySql decimal column in Yii?

activerecord validation yii

Yii condition <IS NULL>

Custom Association Method - Can This Be Done

Problems with clone method in Rails 3.2

RoR models don't seem to act like a Ruby class?

How to add active record validation errors inside custom setter?

Single Table Inheritance (STI) parent ActiveRecord .subclasses .descendants returns empty

finding parent in rails polymorphic association

ActiveRecord not saving after updating attribute