Module: MongoidExt::Paranoia::ClassMethods

Defined in:
lib/mongoid_ext/paranoia.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#deleted ⇒ Object

Find deleted documents

Examples:

<tt>Person.deleted</tt>  # all deleted employees
<tt>Company.first.employees.deleted</tt>  # works with a join
<tt>Person.deleted.find("4c188dea7b17235a2a000001").first</tt>
<tt>Person.deleted.compact!(1.week.ago)</tt>



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# File 'lib/mongoid_ext/paranoia.rb', line 64

def deleted
  self.paranoia_klass
end

#paranoia_klass ⇒ Object 



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# File 'lib/mongoid_ext/paranoia.rb', line 69

def paranoia_klass
  parent_klass = self
  @paranoia_klass ||= Class.new do
    include Mongoid::Document
    include Mongoid::Timestamps

    cattr_accessor :parent_class
    self.parent_class = parent_klass

    collection_name = "#{self.parent_class.collection.name}.trash"
    self.storage_options = {:collection => collection_name}

    field :document, :type => Hash

    before_validation :set_id, :on => :create

    def restore
      self.class.parent_class.create(self.document)
    end

    def self.compact!(date = 1.month.ago)
      self.delete_all(:created_at => {:$lte => date.to_time})
    end

    private
    def set_id
      self["_id"] = self.document["_id"]
    end
  end
end