Millstone

ActiveRecord plugin which hides records instead of deleting them for Rails3

Millstone is extending ActiveRecord::Relation

Credits

This plugin was inspired by rails3_acts_as_paranoid and acts_as_paranoid.

Usage

class User < ActiveRecord::Base
  millstone
end

Options

:column => 'deleted_at'
:type => 'time'

Filtering

User.all          # retrieves the non-deleted records
User.only_deleted # retrieves the deleted records
User.with_deleted # retrieves all records, deleted or not

Real deletion

user.destroy!
user.delete_all!(conditions)

Validation

class User < ActiveRecord::Base
  acts_as_paranoid
  validates_uniqueness_of :name
end

User.create(:name => 'foo').destroy
User.new(:name => 'foo').valid? #=> true


class User < ActiveRecord::Base
  acts_as_paranoid
  validates_uniqueness_of_with_deleted :name
end

User.create(:name => 'foo').destroy
User.new(:name => 'foo').valid? #=> false

Status

user = User.create(:name => 'foo')
user.deleted? #=> false
user.destroy
User.with_deleted.first.deleted? #=> true

Association options

class Parent < ActiveRecord::Base
  acts_as_pranoid
  has_many :children
end

class Child < ActiveRecord::Base
  acts_as_paranoid
  belongs_to :parent
end

parent = Parent.create(:name => "foo")
child = parent.children.create!(:name => "bar")
parent.destroy
child.parent # => nil


class Child < ActiveRecord::Base
  acts_as_paranoid
  belongs_to :parent, :with_deleted => true
end

parent = Parent.create(:name => "foo")
child = parent.children.create!(:name => "bar")
parent.destroy
child.parent #=> #<Parent ... deleted_at: deleted_time>
child.parent.deleted? #=> true