How to drop columns using Rails migration

How to drop columns using Rails migration

ruby-on-rails ruby database activerecord rails-migrations

ruby-on-rails

Rails: select unique values from a column

ruby-on-rails activerecord

ruby-on-rails

How to return an empty ActiveRecord relation?

ruby-on-rails activerecord relation

ruby-on-rails

Do rails rake tasks provide access to ActiveRecord models?

ruby-on-rails activerecord rake task

ruby-on-rails

Determine if ActiveRecord Object is New

ruby-on-rails activerecord

ruby-on-rails

Is there a way to get a collection of all the Models in your Rails app?

ruby-on-rails activerecord collections model

ruby-on-rails

Case-insensitive search in Rails model

ruby-on-rails activerecord case-insensitive

ruby-on-rails

Rails find_or_create_by more than one attribute?

ruby-on-rails activerecord model many-to-many dynamic-attributes

ruby-on-rails

What is causing this ActiveRecord::ReadOnlyRecord error?

ruby-on-rails ruby activerecord join associations

ruby-on-rails

Validate uniqueness of multiple columns

ruby-on-rails ruby-on-rails-3 validation activerecord rails-activerecord

ruby-on-rails

delete_all vs destroy_all?

ruby-on-rails ruby database activerecord

ruby-on-rails

Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]

ruby-on-rails activerecord

ruby-on-rails

What's the difference between belongs_to and has_one?

ruby-on-rails activerecord

ruby-on-rails

How to get last N records with activerecord?

ruby-on-rails ruby activerecord

ruby-on-rails

Rails 3 migrations: Adding reference column?

ruby-on-rails activerecord migration

ruby-on-rails