Paranoid42

Retain soft-deleting functionality without losing AdequateRecord's speed improvements. A fork of paranoid2.

Rails 4.2 introduced adequate record, but in order to take advantage of the improvements, default_scope can't be used (Release Notes). Paranoid42 removes the default scope, and adds a new not_deleted method to your paranoid classes (Benchmarks).

So this:

> Special.where(name: "test")

SELECT "specials".* FROM "specials" WHERE (deleted_at IS NULL) AND "specials"."name" = $1  [["name", "test"]]

Turns into this:

> Special.not_deleted.where(name: "test")

SELECT "specials".* FROM "specials" WHERE (deleted_at IS NULL) AND "specials"."name" = $1  [["name", "test"]]

If you would rather use a shorter method, just create a method with your preferred name, and reference not_deleted:

def active
  not_deleted
end

Counter Caches have also been tied into Paranoid42. Soft-deleting a record will decrement the association counter cache, and recovering a record will incremenet the association counter cache.

Add this line to your application's Gemfile:

gem 'paranoid42'

And then execute:

$ bundle

Add deleted_at: datetime to your model. Generate and run migrations.

rails g migration AddDeletedAtToClients deleted_at:datetime

class AddDeletedAtToClients < ActiveRecord::Migration
  def change
    add_column :clients, :deleted_at, :datetime
  end
end

class Client < ActiveRecord::Base
  paranoid
end

c = Client.find(params[:id])

# will set destroyed_at time
c.destroy

# will recover object and all it's associations
c.recover

# will recover only this object without it's associations
c.recover(associations: false)

# will destroy object for real
c.destroy(force: true)

# also useful scopes are available
Client.only_deleted

class Listing < ActiveRecord::Base
  has_attached_file :image,
    # ...
    preserve_files: true
end

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request