Class: ActiveRecord::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/paranoia.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.acts_as_paranoid(options = {}) ⇒ Object 



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# File 'lib/paranoia.rb', line 156

def self.acts_as_paranoid(options={})
  alias :destroy! :destroy
  alias :delete! :delete
  def really_destroy!
    dependent_reflections = self.class.reflections.select do |name, reflection|
      reflection.options[:dependent] == :destroy
    end
    if dependent_reflections.any?
      dependent_reflections.each do |name, _|
        associated_records = self.send(name)
        # has_one association can return nil
        if associated_records && associated_records.respond_to?(:with_deleted)
          # Paranoid models will have this method, non-paranoid models will not
          associated_records.with_deleted.each(&:really_destroy!)
          self.send(name).reload
        elsif associated_records && !associated_records.respond_to?(:each) # single record
          associated_records.really_destroy!
        end
      end
    end
    touch_paranoia_column if ActiveRecord::VERSION::STRING >= "4.1"
    destroy!
  end

  include Paranoia
  class_attribute :paranoia_column, :paranoia_sentinel_value

  self.paranoia_column = (options[:column] || :deleted_at).to_s
  self.paranoia_sentinel_value = options.fetch(:sentinel_value) { Paranoia.default_sentinel_value }
  def self.paranoia_scope
    where(table_name => { paranoia_column => paranoia_sentinel_value })
  end
  default_scope { paranoia_scope }

  before_restore {
    self.class.notify_observers(:before_restore, self) if self.class.respond_to?(:notify_observers)
  }
  after_restore {
    self.class.notify_observers(:after_restore, self) if self.class.respond_to?(:notify_observers)
  }
end

.I_AM_THE_DESTROYER! ⇒ Object

Please do not use this method in production. Pretty please.



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# File 'lib/paranoia.rb', line 200

def self.I_AM_THE_DESTROYER!
  # TODO: actually implement spelling error fixes
  puts %Q{
    Sharon: "There should be a method called I_AM_THE_DESTROYER!"
    Ryan:   "What should this method do?"
    Sharon: "It should fix all the spelling errors on the page!"
}
end

.paranoia_scope ⇒ Object 



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# File 'lib/paranoia.rb', line 185

def self.paranoia_scope
  where(table_name => { paranoia_column => paranoia_sentinel_value })
end

.paranoid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/paranoia.rb', line 209

def self.paranoid? ; false ; end

Instance Method Details

#paranoid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/paranoia.rb', line 210

def paranoid? ; self.class.paranoid? ; end

#persisted? ⇒ Boolean

Override the persisted method to allow for the paranoia gem. If a paranoid record is selected, then we only want to check if it’s a new record, not if it is “destroyed”.

Returns:

  • (Boolean) 


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# File 'lib/paranoia.rb', line 215

def persisted?
  paranoid? ? !new_record? : super
end

#really_destroy! ⇒ Object 



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# File 'lib/paranoia.rb', line 159

def really_destroy!
  dependent_reflections = self.class.reflections.select do |name, reflection|
    reflection.options[:dependent] == :destroy
  end
  if dependent_reflections.any?
    dependent_reflections.each do |name, _|
      associated_records = self.send(name)
      # has_one association can return nil
      if associated_records && associated_records.respond_to?(:with_deleted)
        # Paranoid models will have this method, non-paranoid models will not
        associated_records.with_deleted.each(&:really_destroy!)
        self.send(name).reload
      elsif associated_records && !associated_records.respond_to?(:each) # single record
        associated_records.really_destroy!
      end
    end
  end
  touch_paranoia_column if ActiveRecord::VERSION::STRING >= "4.1"
  destroy!
end